- Table of Contents
- Intro
- Design
- Sound
- Isolation
- Microphone
- Active Features
- Connectivity
- In the box
- Conclusion
- Discussions
Reviewed on Nov 23, 2017
By Sam Vafaei
, Marc Henney, Yannick Khong
Cougar Immersa
HEADPHONES REVIEW
Usage Ratings -
Version 1.2
Test Benches:
- 1.2: Winter 2018
- 1.1: Summer 2017
- 1.0: Winter 2017
- 0.9: Winter 2016
6.1
Mixed Usage
What it is:
This is the combination of the different use cases to evaluate how versatile the headphones are. Therefore an everyday headphone should be well-rounded enough to adapt to most situations and environments without significant losses in sound quality, design ergonomics or isolation.
Score components:
- 25% Critical Listening
- 25% Office
- 25% Commute/Travel
- 10% Sports/Fitness
- 9% Gaming
- 6% TV
Score distribution:
7.2
Critical Listening
What it is:
The level of audio fidelity a headphone can reproduce. Therefore a balanced and true representation of bass, mids, treble, soundstage and imaging, as well as a comfortable listening experience, is essential for critical listening.
Score components:
- 80% Sound
- 10% Build Quality
- 7% Comfort
- 3% Breathability
Score distribution:
5.3
Commute/Travel
What it is:
How well the headphones handle the loud environments involved in commuting or traveling. Therefore your listening experience should be comfortable, hassle-free and as isolated from noise as possible.
Score components:
- 24% Noise Isolation
- 14% Sound
- 11% Portability
- 10% Comfort
- 9% Build Quality
- 9% Battery
- 6% Wireless Range
- 4% Controls
- 4% Breathability
- 4% Leakage
- 3% Microphone
- 1% Multi-Device Pairing
- 1% NFC Pairing
Score distribution:
5.5
Sports/Fitness
What it is:
How well-adapted the headphones are, to use while doing sports or strenuous exercise. Therefore the headphones should not be too cumbersome and deliver a stable and comfortable listening experience.
Score components:
- 24% Stability
- 23% Portability
- 11% Sound
- 10% Breathability
- 8% Comfort
- 6% Wireless Range
- 5% Controls
- 5% Battery
- 4% Noise Isolation
- 4% Leakage
Score distribution:
5.7
Office
What it is:
How well the headphones can deliver a comfortable and isolated listening experience in an office-like environment. They should not leak much and should block the noise of a busy office.
Score components:
- 24% Comfort
- 21% Sound
- 16% Noise Isolation
- 8% Leakage
- 7% Battery
- 7% Wireless Range
- 5% Breathability
- 4% Build Quality
- 4% Microphone
- 2% Controls
- <1% Multi-Device Pairing
- <1% USB Audio
- <1% PC Compatible
- <1% Latency
- <1% Analog Audio
- <1% Line In
- <1% USB Input
- <1% PC Compatible
- <1% Power Supply
- <1% Dock Charging
Score distribution:
5.7
TV
Score components:
- 22% Sound
- 17% Comfort
- 15% Default Latency
- 10% Wireless Range
- 5% Breathability
- 5% Build Quality
- 4% Optical Input
- 3% Battery
- 3% Analog Audio
- 3% Leakage
- 2% Noise Isolation
- 2% RCA Input
- 2% Multi-Device Pairing
- 2% Line In
- 2% Line Out
- 2% Power Supply
- 1% Dock Charging
Score distribution:
7.0
Gaming
Score components:
- 20% Sound
- 20% Default Latency
- 15% Comfort
- 12% Microphone
- 5% Breathability
- 5% Battery
- 5% Base/Dock
- 3% Build Quality
- 3% Wireless Range
- 3% Microphone Control
- 2% Channel Mixing
- 2% Wired
- 2% Volume Control
- 2% App Support
- 1% Bluetooth
Score distribution:
The Cougar Immersa are a decently comfortable gaming headset, with a good mic but a boomy sound that won't be for everyone. They're well built, although they have a few moving parts that may wear over time. They're also not the most outdoor-friendly headphones despite having a retractable mic and a regular audio jack. They're not portable, they don't block a lot of noise, and they leak a bit at high volumes.
Test Results
| Design | 6.3 |
| Sound | 7.3 |
| Isolation | 4.3 |
| Microphone | 8.5 |
| Active Features | 0 |
| Connectivity | 5.5 |
- Negligible latency.
- Good microphone.
- Poor noise and leakage isolation.
- Bulky design.
- Bass delivery varies significantly across users. Sensitive to glasses.
Update 2/16/2018:
Converted to Test Bench 1.2.
Check Price
Immersa
SEE PRICE
Amazon.com
Design
Score components:
- 28% Comfort
- 5% Controls
- 10% Breathability
- 12% Portability
- 4% Case
- 29% Build Quality
- 12% Stability
Score distribution:
The Immersa are bulky but decently comfortable gaming headphones. They have a self-adjusting headband and thick ear pads but tend to feel a bit tight on the head. They're also relatively heavy and won't be sufficiently stable to use while doing most strenuous physical activities. Their control scheme is simple and decent for gaming, but like the rest of their design, they won't be versatile enough to use outdoors or with mobile devices. They're a hassle to carry around on your person and don't come with a case.
The Cougar Immersa look like bulky gaming headphones. They have large ear cups with very thick pads and a strap design for the headband that makes them look somewhat like the AKG K712 Pro. They have a retractable mic so they could pass for casual headphones but their size is not really practical to use outdoors. On the upside, they look a lot more premium then their price would suggest.
7.0
Comfort
What it is:
Adjustability and degrees of freedom, pressure, stiffness and weight.
When it matters:
When the headphones are going to be used for long durations.
Score components:
Subjectively assigned
Score distribution:
Clamping Force
:
1.3 lbs
What it is:
The force that the headphones exert on your head, once you have them on. This is purely a measurement of the force applied, which does not take into account the earpad's surface area and the resulting pressure you will feel, on or around your ears.
When it matters:
The tighter the headphones, the more force they put on your head. This can get uncomfortable or cause pain and soreness during long listening sessions.
The Immersa have an old school strap design and thick ear pads that make them decently comfortable. They easily adjust to different head sizes, and the ear cups are large and fit well around most listeners' ears. Unfortunately, they're a bit tight on the head. The thick padding somewhat reduces the clamping effect, but they still put enough pressure around your ears to be fatiguing after wearing them for a while.
6.2
Controls
What it is:
The control scheme of the headphones, the number of functions provided, button layout and ergonomics as well as the quality of tactile feedback.
When it matters:
If you want to control volume, pause your music or make phone calls without directly interacting with your audio device.
Score components:
- 21% Ease of use
- 21% Feedback
- 14% Call/Music Control
- 14% Volume Control
- 10% Microphone Control
- 5% Channel Mixing
- 10% Noise Canceling Control
- 5% Talk-Through
Score distribution:
Channel Mixing
:
N/A
What it is:
Being able to mix audio channels directly on the headphones.
When it matters:
This is most useful when using a separate chat software so that you can mix in-game audio and chat audio depending on your needs.
Talk-Through
:
N/A
What it is:
A transparency feature that uses the mics of the headphones to let you hear what is doing on around you without removing them.
When it matters:
If you want to be aware of what is going on around you without removing your headphones or while still listening to your audio. This is typically a feature for the noise canceling headphones and passively isolating in-ears that block a lot of noise.
Good value:
Yes or adjustable.
The Immersa have a basic gaming inline remote that gives you an on/off switch for the mic and a two-way volume dial. It's an easy-to-use setup, but the feedback on the volume dial lacks distinct notches. Also, the in-line remote is not mobile friendly since you can't make calls or pause your music with the remote.
6.2
Breathability
What it is:
How hot the headphones get when you wear them for an extended period of time.
When it matters:
If you often have long listening sessions or use your headphones while doing physical activities like running or working out.
Score components:
- 100% Avg.Temp.Difference
Score distribution:
5.1
Portability
What it is:
The volume of space occupied by the headphones when folded into their most compact format.
When it matters:
If you're often on the move and need to carry your headphones in a bag, purse , or pocket.
Score components:
- 20% Volume
- 80% Transmitter required
Score distribution:
The Cougar Immersa are a very large and bulky headset. They don't fold into a more compact format and are cumbersome to carry around on your person. They're not limited by a transmitter stand or USB dongle like some of the other wireless gaming headphones. But unfortunately, they're not very portable and definitely require a bag if you're going to be commuting or traveling with them.
7.0
Build Quality
What it is:
Durability, material quality, cheap/expensive feel.
When it matters:
When the headphones are going to be used by multiple users (classes/studios), by children, in tough conditions, on a daily basis, or for exercise.
Score components:
Subjectively assigned
Score distribution:
The Immersa are decently well built but have a lot of moving parts in their headband design. The ear cups are dense and sturdy and won't break from a few accidental drops. The headband is flexible and decently durable but has a lot of moving parts that will wear over time with repeated use. They also do not have a detachable cable so it can't be replaced if it ever gets damaged which reduces their overall durability. On the upside, the materials used in their build quality feels a lot more premium than their price would suggest.
6.0
Stability
What it is:
How the headphones are designed to prevent them from slipping off your ears or falling off your head.
When it matters:
If you plan on using the headphones while doing sports or other physical activities that requires a lot of movement.
Score components:
Subjectively assigned
Score distribution:
These headphones are big and bulky and won't be stable enough to run or exercise with. They're also wired with a non-detachable cable so if the cable gets hooked by something it will quickly yank the headphone off your ears. However, since they're kind of tight on the head, they won't easily fall during casual listening or gaming sessions.
Sound
What it is:
How accurately the audio is reproduced. The tests are performed with the headphones' most commonly used features enabled (noise-cancelling, wireless, etc.)
Score components:
- 21% Bass
- 20% Mid
- 19% Treble
- 5% Frequency Response Consistency
- 9% Imaging
- 20% Soundstage
- 6% Total Harmonic Distortion
Score distribution:
The Cougar Immersa are an average-sounding pair of closed-back, over-ear gaming headsets. They have a mediocre bass, an average mid range, but good treble, and good imaging. Unfortunately, they lack a bit of sub-bass, sound boomy, and their mid range is muddy and slightly recessed. Also, their bass is prone to inconsistencies across multiple users, they show elevated distortion at high volumes, and don't have an open or spacious soundstage.
6.6
Bass
What it is:
Frequency Response from 20Hz-250Hz
When it matters:
When the material is heavy on bass frequencies, such as those of kick drums and bass guitar.
Score components:
- 90% Std. Err.
- 10% Low-Frequency Extension
Score distribution:
Std. Err.
:
4.87 dB
What it is:
The amount of deviation (weighted standard error) in bass frequency response (20Hz-250Hz) as compared to a target response that would sound perfectly balanced to most people.
When it matters:
When a balanced and neutral (reference) bass performance is desired.
Good value:
<4dB
Noticeable difference:
0.1dB
Score distribution:
Low-Frequency Extension
:
30.4 Hz
What it is:
The lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters:
Shows how extended the bass is.
Good value:
<40Hz
Noticeable difference:
5Hz
Score distribution:
Low-Bass
:
-2.16 dB
What it is:
The average amount of over/under-emphasis in frequency response from 20Hz-60Hz.
When it matters:
Kick drums and low frequency effects get their 'thump' from this range. Mostly felt than heard.
Good value:
+/-3dB
Noticeable difference:
0.1dB
Mid-Bass
:
4.73 dB
What it is:
The average amount of over/under-emphasis in frequency response from 60Hz-120Hz.
When it matters:
Melodic bass instruments have most of their fundamental frequencies in this range. This is where the 'body' and 'punch' of the bass sits.
Good value:
+/-3dB
Noticeable difference:
0.1dB
High-Bass
:
7.24 dB
What it is:
The average amount of over/under-emphasis in frequency response from 120Hz-250Hz.
When it matters:
Most instruments get their warmth and full-ness from this range. When over-emphasized, mixes tend to get muddy and boomy.
Good value:
+/-3dB
Noticeable difference:
0.1dB
Mediocre bass range performance. Low-frequency extension is at 30Hz, which is very good. However, low-bass which is responsible for thump and rumble is lacking by about 2dB. The 7dB bump centered around 120Hz and extended up to 250Hz, makes the sound of these headphones noticeably boomy and muddy. Also, their bass delivery varies significantly across users, and is sensitive to the quality of fit, seal, and whether you wear glasses. The response here represents the average bass response and your experience may vary.
7.0
Mid
What it is:
Frequency Response from 250Hz-2KHz
When it matters:
When the material is heavy on mid-range frequencies. This is the case for the majority of audio content.
Score components:
- 100% Std. Err.
Score distribution:
Std. Err.
:
3.99 dB
What it is:
The amount of deviation (weighted standard error) in mid frequency response (250Hz-2.5KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters:
When a balanced and neutral (reference) mid performance is desired.
Good value:
<4dB
Noticeable difference:
0.1dB
Score distribution:
Low-Mid
:
4.11 dB
What it is:
The average amount of over/under-emphasis in frequency response from 250Hz-500Hz.
When it matters:
Most instruments have their fundamentals or low harmonics in this range. Over-emphasis in this range sounds muddy and cluttered. Under-emphasis, thins out the vocals and lead instruments.
Good value:
+/-3dB
Noticeable difference:
0.1dB
Mid-Mid
:
-1.2 dB
What it is:
The average amount of over/under-emphasis in frequency response from 500Hz-1KHz.
When it matters:
This range is occupied mostly by upper harmonics. Over-emphasis sounds forward and boxy. Under-emphasis pushes instruments to the back of the mix.
Good value:
+/-3dB
Noticeable difference:
0.1dB
High-Mid
:
-4.9 dB
What it is:
The average amount of over/under-emphasis in frequency response from 1KHz-2KHz.
When it matters:
Most instruments, especially vocals, get their intensity and clarity from this range. Over-emphasis sounds honky and harsh, under-emphasis sounds weak and distant.
Good value:
+/-3dB
Noticeable difference:
0.1dB
Average mid range performance. The 4dB bump in low-mid is the continuation of the high-bass bump, which makes mixes sound cluttered and muddy. The dip around 1.2KHz negatively affects the intensity and projection of vocals/leads.
8.5
Treble
What it is:
Frequency Response from 2KHz-20KHz
When it matters:
When the material is heavy on high-range frequencies, such as voice, cymbals, and any other material where brightness, brilliance and airiness is desired.
Score components:
- 100% Std. Err.
Score distribution:
Std. Err.
:
2.91 dB
What it is:
The amount of deviation (weighted standard error) in treble frequency response (2.5KHz-20KHz) as compared to a target response that would sound perfectly balanced to most people.
When it matters:
When a balanced and neutral (reference) treble performance is desired.
Good value:
<4dB
Noticeable difference:
0.1dB
Score distribution:
Low-Treble
:
-2.15 dB
What it is:
The average amount of over/under-emphasis in frequency response from 2KHz-5KHz.
When it matters:
Almost all instruments rely on this range for their presence, detail, and articulation. Over-emphasis can sound harsh and painful. Under-emphasis hurts the comprehensibility of vocals and lead instruments.
Good value:
+/-3dB
Noticeable difference:
0.1dB
Mid-Treble
:
-1.09 dB
What it is:
The average amount of over/under emphasis in frequency response from 5KHz-10KHz.
When it matters:
This is the sibilance range. Cymbals, vocals, and lead instruments rely on this range for brightness and presence. Over-emphasis sounds piercing and painful, under-emphasis sounds dull and lispy.
Good value:
+/-3dB
Noticeable difference:
0.1dB
High-Treble
:
-2.86 dB
What it is:
The average amount of over/under-emphasis in frequency response from 10KHz-20KHz.
When it matters:
This range gives brilliance and airiness to the sound. Over-emphasis sounds hissy, under-emphasis sounds closed-up and lifeless.
Good value:
+/-3dB
Noticeable difference:
0.1dB
Very good treble range. The response is relatively flat, but consistently under our target by about 1.5dB. This will slightly tilt the tonal balance towards lower frequencies.
Raw Frequency Response
What it is:
The average uncompensated frequency response of the headphone. For in-ears and earbuds, this corresponds to the average of 5 measurements/re-seats on the dummy head (HMS). For over/on-ear headphones, this corresponds to the average of 5 measurements/re-seats on the HMS (Head Measurement System) for the mid and treble ranges, and 5 measurements/re-seats on 5 human subjects for the bass range.
When it matters:
This is for those who want to see the raw and uncompensated frequency response of the headphone. Some of the more advanced users, are able to read and evaluate headphone frequency response in its raw form and without compensation. This will be especially useful to them if they have their own headphone compensation/target curve, which may differ from the compensation curve/target response used by RTINGS.com.
5.7
Frequency Response Consistency
What it is:
The amount of deviation of each frequency response pass, from the average frequency response.
When it matters:
Shows how consistently the headphones perform after re-positioning them.
Score components:
- 100% Avg. Std. Deviation
Score distribution:
Avg. Std. Deviation
:
1.08 dB
What it is:
The average amount of deviation in frequency response of 5 re-seats, from the average frequency response.
When it matters:
Shows how consistently the headphones perform after re-positioning them.
Good value:
<0.5
Noticeable difference:
0.1
Score distribution:
Sub-par consistency. In the bass range, the Immersa performed quite consistently across our humans subjects, except with the one wearing glasses, which experienced 6dB less bass at 20Hz. In the treble range, they also show more than 6dB of deviation below 10KHz.
8.3
Imaging
What it is:
Imaging qualities are inherent to the audio content, the headphones have to 'reproduce' them rather than 'create' them. They determine how accurately the objects are positioned in the stereo image, and how transparent the imaging is.
When it matters:
When accurate positioning of the objects in the stereo image, and clear and transparent imaging is desired.
Score components:
Score distribution:
Weighted Group Delay
:
0.32
What it is:
The average amount of group delay calculated based on a perceptual weighting filter. Group delay indicates how long it takes for each frequency to reach their maximum amplitude. This is a monaural quality and can be perceived even with one ear.
When it matters:
Headphones with lower group delay have more transparent imaging and a tighter bass. Headphones with higher group delay in the bass range tend to have a wimpy and loose bass, and headphones with higher group delay in the treble range tend to have a less transparent imaging.
Good value:
<0.5
Noticeable difference:
0.1
Score distribution:
Weighted Amplitude Mismatch
:
0.63
What it is:
The Left/Right balance of our test unit, that is, the amount of amplitude difference between the left and right drivers. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters:
When a properly balanced stereo image and low manufacturing tolerance is desired. A poor score indicates a noticeable difference in level between the left and right drivers.
Good value:
<1.5
Noticeable difference:
0.1
Score distribution:
Weighted Frequency Mismatch
:
2.4
What it is:
The amount of difference (Std. Err.) between the frequency response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters:
When an even and stable stereo image, as well as a low manufacturing tolerance, is desired. A poor score indicates there may be 'holes' in the stereo image at certain frequencies.
Good value:
<2
Noticeable difference:
0.1
Score distribution:
Weighted Phase Mismatch
:
4.94
What it is:
The amount of difference (Std. Err.) between the phase response of the left and right drivers of our test unit. This is not a design test, but a marker for manufacturing tolerance and ergonomics.
When it matters:
When an even and stable stereo image, as well as a low manufacturing tolerance is desired. A poor score indicates there may be inaccuracies in the stereo image reproduction at certain frequencies.
Good value:
<16
Noticeable difference:
3
Score distribution:
7.3
Soundstage
What it is:
Soundstage qualities are not inherent to the audio content, the headphones have to 'create' them rather than 'reproduce' them. They determine whether the sound is perceived to be coming from inside or in front of the head, how open and spacious the soundstage is, how much the headphones acoustically interact with the environment, and how strong the phantom center is.
When it matters:
When an accurately produced, large and spacious soundstage, similar to that of a stereo loudspeaker setup is desired.
Score components:
- 15% PRTF Accuracy (Std. Dev.)
- 15% PRTF Size (Avg.)
- 30% PRTF Distance
- 20% Openness
- 10% Acoustic Space Excitation
- 10% Correlated Crosstalk
Score distribution:
PRTF Accuracy (Std. Dev.)
:
2.91 dB
What it is:
The standard deviation of the PRTF (Pinna-related transfer function) of the headphones compared to a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters:
An accurate pinna activation is mainly responsible for how natural and speaker-like the soundstage is perceived to be. The less error in the shape of the PRTF, the more natrual and speaker-like the perception of the soundstage will be. High amounts of error may indicate a soundstage that is unnatural or odd.
Good value:
<2.5
Noticeable difference:
0.1
Score distribution:
PRTF Size (Avg.)
:
4.47 dB
What it is:
The average amplitude of the PRTF (Pinna-related transfer function) of the headphones compared to that of a reference loudspeaker's PRTF at 30°. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters:
This value is responsible for the perceived size of the soundstage. The higher the value, the larger the perceived size of the soundstage. However, values above the reference (5.0dB) could result in a soundstage that is perceived as unnatural or odd.
Good value:
>3.7
Noticeable difference:
0.1
Score distribution:
PRTF Distance
:
16.7 dB
What it is:
The depth of the "10KHz notch" of the headphone's PRTF, which is caused by phase cancellations at the concha. This quality is monaural and can be perceived even with one ear. This test does not apply to in-ears and earbuds, due to the lack of pinna interaction.
When it matters:
This value is mainly responsible for the perceived distance and elevation of the soundstage. A small distance value may result in a soundstage that is perceived to be located inside the head. Larger values may help pull the soundstage out from inside of the head and bring it to the front.
Good value:
>13
Noticeable difference:
1
Score distribution:
Openness
:
5.8
What it is:
How open the headphones are, and how open and spacious they sound. This quality is monaural and can be perceived even with one ear. This test differentiates between acoustically and electronically produced crosstalk and only takes the acoustically generated crosstalk into account. This value is the inverse of the Noise Isolation test score, and could be indirectly related the acoustic impedance of the headphones.
When it matters:
When a headphone with a sense of an open, and spacious soundstage is desired. A value of 10 indicates a fully open headphone, and a value of 0 indicates a fully closed headphone.
Good value:
>7.5
Noticeable difference:
0.5
Acoustic Space Excitation
:
6.3
What it is:
How loud the headphones are, and how much they excite their environment acoustically. If the headphones are loud and open enough, the sound leaking from the headphones will be affected by the environment (reflections/reverb) before reflecting back into the open headphones and to the listener's ears. This quality is monaural and can be perceived even with one ear. This value is the inverse of the Leakage test score.
When it matters:
Headphones with higher excitation values, similar to openness, tend to have soundstages that are perceived as more open and spacious.
Good value:
>7.5
Noticeable difference:
0.5
Correlated Crosstalk
:
-0.33 dB
What it is:
How strong and solid the phantom center is. This is mostly a stereo quality and its effects on mono content are minimal. This test is sensitive to the phase of the crosstalk and whether it is produced acoustically or electronically.
When it matters:
When a true reproduction of the stereo image is desired. A value of 0 indicates no crosstalk, or that the existing crosstalk is not correlated enough to affect the phantom center. A negative score means the crosstalk is out of phase with the original signal, resulting in a slightly wider stereo image at the expense of creating a 'hole' at the center of the stereo field. A positive score means the crosstalk is in phase and positively affecting the phantom center.
Good value:
>1dB
Noticeable difference:
0.3dB
Score distribution:
6.7
Total Harmonic Distortion
What it is:
The subtle, unwanted frequencies (harmonics) produced alongside the intended frequencies.
When it matters:
When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Score components:
- 50% Weighted THD @ 90
- 50% Weighted THD @ 100
Score distribution:
Weighted THD @ 90
:
2.044
What it is:
The overall amount of harmonic distortion measured at 90dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters:
How pure the sound is at moderate listening levels.
Good value:
<0.100
Noticeable difference:
0.1
Score distribution:
Weighted THD @ 100
:
22.073
What it is:
The overall amount of harmonic distortion measured at 100dB SPL. To make the score more perceptually relevant, more weight is given to the higher frequencies.
When it matters:
How pure the sound is at loud listening levels.
Good value:
<0.300
Noticeable difference:
0.1
Score distribution:
Average harmonic distortion performance. The overall amount of harmonic distortion in the treble range is low, regardless of level. However, in the bass and lower mid ranges, there is a significant rise in THD under heavier loads.
Isolation
The Immersa, despite having very thick ear cup pads, are still quite leaky and do not prevent noise from seeping into your audio. If you game alone or in a quiet room then they should be okay but they won't be the ideal to use in very noisy conditions, especially, if there's a lot of low-frequency ambient noise like a subwoofer at a competition. Their leakage level is also relatively high so depending on your environment they may be distracting to the people around you.
4.1
Noise Isolation
What it is:
How much outside noise is blocked out by putting the headphones on.
When it matters:
If the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
Score components:
- 29% Bass
- 29% Mid
- 28% Treble
- 14% Self-Noise
Score distribution:
Isolation Audio
:
What it is:
The simulated noise isolation of the headphones, demonstrating how much outside noise is blocked out by putting the headphones on. This recording is created using an EQ and is not an actual recording. For headphones with ANC (active noise cancellation), the playback simulates the isolation with ANC enabled.
When it matters:
When the headphones are going to be used in a noisy envinronment (airplane, subway, etc.)
Overall Attenuation
:
-8.68 dB
What it is:
The overall amount of environmental noise reduction in dB.
When it matters:
In loud envinronments like planes, trains, offices, etc.
Good value:
<-20dB
Noticeable difference:
1dB
Bass
:
0.44 dB
What it is:
The overall amount of noise isolation in the bass range (20Hz-250Hz).
When it matters:
When the outside noise is bass-heavy, like in airplanes.
Good value:
<-15dB
Noticeable difference:
1dB
Score distribution:
Mid
:
-1.5 dB
What it is:
The overall amount of noise isolation in the mid-range (250Hz-2.5KHz).
When it matters:
When the environment's noise is mid-heavy, like in an office.
Good value:
<-15dB
Noticeable difference:
1dB
Score distribution:
Treble
:
-24.81 dB
What it is:
The overall amount of noise isolation in the treble range (2.5KHz-20KHz).
When it matters:
When the environment's noise is treble-heavy. Although uncommon, areas with sharp sounds fall under this category.
Good value:
<-30dB
Noticeable difference:
1dB
Score distribution:
Self-Noise
:
0 dB
What it is:
The amount of noise created by the active electronics of the headphones (if applicable), measured from 300Hz-20KHz. Applies mostly to wireless and noise-cancelling headphones.
When it matters:
If too loud, it could become distracting when listening to quiet material like podcasts and audiobooks.
Good value:
<16dB
Noticeable difference:
1dB
Score distribution:
Poor isolation performance. These headsets don't have active noise cancelling and don't isolate below 1KHz. Above that, they achieve an isolation of 25dB, which is decent.
4.6
Leakage
What it is:
The amount of sound bleeding out of the headphones.
When it matters:
When the listener doesn't want people around them (in office, recording studio, etc.) to hear what is being listened to.
Score components:
Score distribution:
Leakage Audio
:
What it is:
The simulated sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal. This recording is created using an EQ and is not an actual recording.
When it matters:
When you don't want people to hear what you are listening to.
Overall Leakage @ 1ft
:
51.61 dB
What it is:
The amount of sound leakage heard 1 foot away from the user, while the user is listening to a 100dB SPL signal.
When it matters:
When you don't want people hear what you are listening to.
Good value:
<35dB
Noticeable difference:
1dB
Score distribution:
Poor leakage. The significant portion of leakage sits between 500Hz and 6KHz, which is a broad range. The overall level of leakage is also moderately loud.
Microphone
What it is:
The microphone section shows the quality of speech capture and transmission by the mic, as well as how well the microphone under test handles noisy environments.
When it matters:
For your speech to be transmitted to and understood properly by the listener, the microphone needs to have a good recording quality. If the environment the microphone is being used in is noisy, a microphone with a good noise handling performance would be needed as well.
Score components:
- 50% Recording Quality
- 50% Noise Handling
Score distribution:
Integrated
:
No
What it is:
The microphone integrated in the ear cup or ear bud of a wireless headphone.
When it matters:
For calls, gaming and voice over IP software or for any other use of the microphone.
Good value:
Yes
In-line
:
No
What it is:
The microphone inside the in-line remote of audio cables for wired and wireless headsets.
When it matters:
In-line microphone are usually better than integrated mics. If you need better recording quality and noise handling for calls, gaming and voice over IP software then use the audio cable of your wired or wireless headphone if it has an inline microphone.
Good value:
Yes
Boom
:
Yes
What it is:
A typically better microphone, that's also adjustable and extends so that the mic is closer to your mouth.
When it matters:
Much better recording quality and noise handling than in-line or integrated mics. Primarily used for gaming and voice over IP software.
Good value:
Yes
Detachable Boom
:
No
What it is:
A boom mic that is detachable from the headset.
When it matters:
If you want to use your headphone outdoors without the bulk and hassle of the Boom mic.
Great microphone performance. Speech recorded with the microphone of the Cougar Immersa will sound full, easily comprehensible, but quite bright and even piercing. However, they have an impressive noise handling performance, and they're capable of separating speech from ambient noise in the most demanding environments, such as a metro station or gaming competition.
8.3
Recording Quality
What it is:
Microphone recording quality shows how natural, neutral, extended and intelligible speech would be with the device under test, in a quiet environment.
When it matters:
A microphone with a good recording quality ensures that the person listening to you would hear a full, clear, and easily understandable speech. Therefore, it is important whenever a good quality of speech transmission and intelligibility is needed.
Score components:
- 20% LFE
- 25% FR Std. Dev.
- 30% HFE
- 20% Weighted THD
- 5% Gain
Score distribution:
Recorded Speech
:
What it is:
Actual audio recording of the headphone's microphone, recorded while placed on the dummy head, with speech being played back through the dummy head's mouth simulator.
When it matters:
When a clean, full, and intelligible speech transmission is required.
LFE
:
20 Hz
What it is:
Low-frequency extension shows how deep the bass response of the microphone is, and therefore, how deep and full your voice would sound to the listener. It is the lowest frequency at which the frequency response reaches -3dB of the target response.
When it matters:
LFE is not a big factor in speech intelligibility and even speech recorded with a mic that has an LFE of 500Hz could still be easily understood. Therefore, it is mostly important if you are concerned with how deep and full your voice would be heard.
Good value:
<150Hz
Noticeable difference:
30Hz
Score distribution:
FR Std. Dev.
:
5.5 dB
What it is:
Frequency Response Standard Deviation shows how accurately and balanced sound is captured by the microphone at each frequency. FR Std. Dev. is calculated between LFE and HFE, and the rest of the spectrum is ignored.
When it matters:
A good frequency response is desired when a natural and neutral speech quality is desired. As opposed to HFE which is more a metric for speech intelligibility, frequency response could be considered as a metric for a natural and neutral sound.
Good value:
>3.5dB
Noticeable difference:
0.5dB
Score distribution:
HFE
:
10093.19 Hz
What it is:
High-frequency extension is the highest frequency at which the frequency response reaches -3dB of the target response. It shows how extended the treble response of the microphone is.
When it matters:
HFE is one the most important factors in speech intelligibility. The higher the HFE, the brighter, more open, and more extended the speech quality will be which makes it a lot easier to understand by the listener.
Good value:
>8KHz
Noticeable difference:
1KHz
Score distribution:
Weighted THD
:
0.335
What it is:
The unwanted frequencies (harmonics) produced alongside the intended frequencies, which cause deformation of an output signal compared to its input.
When it matters:
When clean and pure sound reproduction is desired, though its effect is not as noticable as frequency response.
Good value:
<1.5
Noticeable difference:
1.0
Score distribution:
Gain
:
33.47 dB
What it is:
Shows how much louder the microphone can go above our reference loudness level. The gain value is reported relative to our reference level, which is 94dB at a distance of 5cm from the mouth.
When it matters:
A microphone with a high gain is important when the input signal (speech) is very quiet. For example when whispering, or talking on the phone in a library.
Good value:
>18dB
Noticeable difference:
3dB
Score distribution:
Very good recording quality. LFE is extended down to 20Hz, which is great, making the recorded speech with the Immersa to sound full. HFE is extended up to 10KHz, which is also very good. However, the 15dB peak surrounding 3KHz makes recorded speech sound very bright to the point of being harsh and piercing.
8.8
Noise Handling
What it is:
How well the microphone is able to separate speech from background noise, so that the transmission would include more voice and less noise.
When it matters:
When a clean and intelligible speech transmission is desired in a noisy situation like talking on the phone on a busy street or on the bus.
Score components:
- 100% SpNR
Score distribution:
SpNR
:
41.02 dB
What it is:
Speech to Noise Ratio is the difference in level between speech and background noise as heard by the listener
When it matters:
If the microphone is going to be used in a noisy environment, it is important for it to be able to separate the speech from background noise, so the voice would be easily audible and understandable.
Good value:
>24dB
Noticeable difference:
3dB
Score distribution:
Excellent noise handling. The microphone on the Cougar Immersa has achieved a speech-to-noise ratio of 41dB which is impressive. This makes them an ideal choice for environments with very high levels of ambient noise.
Active Features
What it is:
Headphones with active components that require a battery. This includes noise cancelling and wireless headphones that actively reduce noise or transmit audio via a wireless connection.
When it matters:
How suitable the power and wireless specifications of an active headphone will be, depending on your listening habits. The range and/or discharge time of the active headphone you select will be important if you're often on the move or have long uninterrupted listening sessions.
Score components:
- 90% Battery
- 10% App Support
Score distribution:
No active features.
N/A
Battery
What it is:
The power source of your headphones. All headphones with active features have a battery that will deplete over time.
When it matters:
To continue using the active features of your headphones. Some models lose features or switch off completely when the battery is drained, which limits what you can do with them until the next charge.
Score components:
- 60% Battery Life
- 25% Charge Time
- 10% Power Saving Feature
- 5% Audio while charging
Score distribution:
Battery Type
:
N/A
What it is:
The type of battery that the headphones use. Usually AAA or embedded, Li-ion rechargeable batteries.
When it matters:
When your headphones run out of power. Rechargeable batteries usually charge via the headphones Micro-USB port whereas AAA batteries have to be replaced or charged with an external device.
Battery Life
:
N/A
What it is:
The amount of time it takes for a headphones' battery to be completely drained. Battery life will vary depending on the active features used and volume level.
When it matters:
For active headphones that connect wirelessly, have noise cancellation or other audio-enhancing features, that cease to work once the battery is dead.
Good value:
>10hrs
Noticeable difference:
0.5hrs
Score distribution:
Charge Time
:
N/A
What it is:
The amount of time your active headphones have to be connected to a power source to charge from 0 to a 100%. However, charging time will vary depending on your power source.
When it matters:
To be able to use the active features of your headphones. Especially, wireless ones that completely switch off and need to be recharged when the battery is dead.
Good value:
2h or less
Noticeable difference:
0.25h
Score distribution:
Power Saving Feature
:
N/A
What it is:
A feature that turns off the headphones, after a set time, when they're not in use.
When it matters:
To prolong battery life when the headphones are not being used, or if you forget to manually turn off your headphones.
Audio while charging
:
N/A
What it is:
Some active headphones remain usable while charging. They continue to stream audio and do not disable other active features.
When it matters:
This makes sure that your headphones's battery are not being drained when you're relatively close to a power source. However, this means wireless headphones will need a wired connection to the power source during the charging process.
0
App Support
What it is:
The additional app provided to enhance your listening experience. They typically deliver a set of practical features that give you more control over the sound, noise cancelling and effects that the headphones produce.
When it matters:
An app with a lot of features allows you to customize your listening experience to suit your taste and preferences. For example, additions like an equalizer can give you more bass or treble and room effects can simulate a bigger Soundstage in closed back headphones.
Score components:
Subjectively assigned
Score distribution:
Equalizer
:
N/A
What it is:
Parametric, graphic or preset sound profiles that slightly alter the frequency response.
When it matters:
If you want to tailor, your listening experience. Depending on what you're listening to you may want more or less bass for some tracks or more mid-range for vocals-heavy audio.
ANC control
:
N/A
What it is:
Control over the Active noise canceling technology. This could be either a simple on/off button, and adjustable slider or even adaptive self-regulating noise cancellation.
When it matters:
If you're in an environment where you need to monitor your surroundings or completely isolate yourself from ambient noise.
Room effects
:
N/A
What it is:
Room effects that enhance the audio quality to make it more immersive.
When it matters:
If you want to further tweak your listening experience. Adding room effects, can simulate a more spacious Soundstage or deliver a surround sound-like feel.
Playback control
:
N/A
What it is:
An in-app player that gives you access to play/stop, track skipping or volume controls directly with the app.
When it matters:
It's a shortcut that allows you to control your audio without leaving the application.
No compatible app.
Connectivity
What it is:
The inputs and outputs of wired and wireless headphones, as well as their latency performance and range.
When it matters:
To know how compatible your Bluetooth device, console or PC will be with your wired or wireless headset.
Score distribution:
0
Bluetooth
What it is:
Bluetooth support for wireless headphones.
When it matters:
To connect wirelessly to Bluetooth sources like your phone, tablet, console, PC and TV.
Score components:
- 80% Multi-Device Pairing
- 20% NFC Pairing
Score distribution:
Bluetooth Version
:
N/A
What it is:
The version of Bluetooth that the headphones support.
When it matters:
Newer versions of Bluetooth, when paired with devices that support the same version, may have improved latency and wireless range performance.
Multi-Device Pairing
:
N/A
What it is:
A Bluetooth profile that allows some headphones to be simultaneously connected to multiple Bluetooth sources, and have full call and media support on both/all devices they are connected to.
When it matters:
To quickly switch between your Bluetooth sources. For example, switching from your phone to your home or work PC and still have call and media support on both devices.
Good value:
2 devices.
NFC Pairing
:
N/A
What it is:
Near Field Communication technology that allows you to quickly, pair your headphones with your Bluetooth and NFC-enabled device.
When it matters:
This makes pairing with an NFC-enabled device a lot easier than the typical and often tedious hold-to-pair procedure that most wireless headphones have.
Good value:
Yes
9.1
Wired
What it is:
The type and compatibility of audio cables for wired and wireless headphones.
When it matters:
For all devices with a regular audio jack (line-out) and also compatibility of the in-line remote/boom microphone with consoles and Personal computers.
Score components:
- 13% Analog Audio
- 9% USB Audio
- 26% PS4 Compatible
- 26% Xbox One Compatible
- 26% PC Compatible
Score distribution:
OS Compatibility
:
Not OS specific
What it is:
Testing the headphones' cable to see which operating system it works with.
When it matters:
Some wired headphones don't support all operating systems so this allows you to check if the headphones will work with your device.
Analog Audio
:
Yes
What it is:
When your headphones can play analog media using a standard 1/8" TRS audio jack. Includes using a 1/4" or 1/16" TRS with a 1/8" TRS adapter.
When it matters:
For listening to music with devices that have a standard 1/8" TRS audio jack, like an MP3 player, tablet, smartphone or PC.
Good value:
Yes
USB Audio
:
No
What it is:
When your headphones can play digital media using a standard USB connector.
When it matters:
For listening to music on a PC. A digital USB adapter can offer some advantages over a regular audio jack, like a DAC or added software support.
Good value:
Yes
PS4 Compatible
:
Audio + Microphone
What it is:
PS4 compatibility with a regular 1/8" TRS or TRRS audio cable.
When it matters:
When you want to use a wired headphone with your PS4 controller.
Good value:
Audio + Microphone
0
Base/Dock
What it is:
The base station, dock or dongle transmitter of wireless headphones that receive data/audio via a specific frequency range or wired headphones that have a proprietary amp.
When it matters:
Knowing the inputs and outputs of the base/dock/dongle as well as its compatibility with consoles and personal computers. Also whether the base supports dock charging to easily recharge the headphones without any cables.
Score components:
- 5% Optical Input
- 22% Line In
- 5% Line Out
- 22% USB Input
- 4% RCA Input
- 9% PS4 Compatible
- 9% Xbox One Compatible
- 9% PC Compatible
- 2% Power Supply
- 13% Dock Charging
Score distribution:
Type
:
N/A
What it is:
The type of base/dock the headphones use, whether a USB dongle, charging case or docking station. Wired or wireless.
When it matters:
Larger docking stations tend to have more controls and sometimes even customization options while smaller USB dongles are more portable. Charging cases allow you to keep your earbuds charged on-the-go.
Optical Input
:
N/A
What it is:
Optical input for audio.
When it matters:
Optical can carry a bit more data at faster speeds than typical wired connection which allows for more high quality, lossless audio.
Good value:
Yes
Line In
:
N/A
What it is:
The regular wired input via a 1/8" TRS audio jack.
When it matters:
For any device that has a line out for audio transmission.
Good value:
Yes
Line Out
:
N/A
What it is:
A regular 1/8TRS audio jack output.
When it matters:
If you need to share the audio source with other devices. A line out lets you connect other headphones or speakers to the dock/base station.
Good value:
Yes
USB Input
:
N/A
What it is:
A digital USB input instead of a typical 1/8 TRS line-in.
When it matters:
A USB connection can provide both an audio input and power to the Dock or Base station.
RCA Input
:
N/A
What it is:
Audio input using via an RCA connectors.
When it matters:
Provides better stereo audio to the dock/base that's then transmitted to the headphones.
Good value:
Yes
PS4 Compatible
:
N/A
What it is:
Dock/Base station compatibility with the PlayStation 4.
When it matters:
To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value:
Audio + Microphone
Xbox One Compatible
:
N/A
What it is:
Dock/Base station compatibility with the Xbox One.
When it matters:
To be able to use all the features of the dock/base station with out losing audio or microphone capability.
PC Compatible
:
N/A
What it is:
Dock/Base station compatibility with your Personal Computer.
When it matters:
To be able to use all the features of the dock/base station with out losing audio or microphone capability.
Good value:
Audio + Microphone
Power Supply
:
N/A
What it is:
The connector type of the power source for the base/dock/transmitter.
When it matters:
The accessibility of the power source. For example a power supply with USB/USB-C connects to multiple devices, PC , PS4, Xbox One or even with your regular phone charger whereas a A/C adapter is less common.
Good value:
USB/USB-C
0
Wireless Range
What it is:
Headphones that offer a cable-free listening experience over a wireless network, typically via Bluetooth or radio frequency.
When it matters:
If you don't want to be limited by the length of an audio cable. This means having the freedom to move around in your home or office with a much greater range than an audio cable could provide, especially, if the Bluetooth source is heavy or difficult to carry. Note that wireless range also depends on your Bluetooth sources' signal strength which may vary from device to device or depending on your phone model.
Score components:
- 77% Obstructed Range
- 23% Line of Sight Range
Score distribution:
Obstructed Range
:
N/A
What it is:
The range that the wireless headphones can reach before dropping any audio when the Bluetooth source was placed in another room. We test our obstructed range with a Moto E4 Plus. Results may vary depending on your phone model or Bluetooth source.
When it matters:
If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in an indoor environment. Although, the obstructed wireless range will slightly depend on your home or office layout. Note that wireless range also depends on your Bluetooth sources' signal strength which may vary from device to device or depending on your phone model.
Good value:
>35ft
Noticeable difference:
5ft
Score distribution:
Line of Sight Range
:
N/A
What it is:
The range that the wireless headphones can reach before dropping any audio when in direct line of sight of the Bluetooth device.
When it matters:
If you can't or prefer not to carry your Bluetooth source on you, while listening to your audio in a large and open environment.
Good value:
170ft or more
Noticeable difference:
10ft
Score distribution:
10
Latency
What it is:
How long it takes for audio to play through your headphones once the audio signal has been sent from a source.
When it matters:
When gaming or watching movies. High latency means you will hear the audio much later than the images you see on screen.
Score components:
- 34% Default Latency
- 33% aptX Latency
- 33% aptX(LL) Latency
Score distribution:
Default Latency
:
0 ms
What it is:
The Base RF latency or the default sub-band coding (SBC) of most Bluetooth headphones.
When it matters:
When watching videos a high latency can cause sync issues between the images you see and the audio you hear.
Good value:
50ms or less
Noticeable difference:
15ms
Score distribution:
aptX Latency
:
N/A
What it is:
An audio coding algorithm (Codec) that improves bit rate efficiency. It reduces latency and improves sound quality over Bluetooth.
When it matters:
For better sound quality if your often streaming music over Bluetooth. Also it slightly improves latency when watching videos with wireless headphones.
Good value:
50ms or less
Noticeable difference:
15ms
Score distribution:
aptX(LL) Latency
:
N/A
What it is:
Low latency variation of aptX that significantly reduces sync issues between video and sound when using Bluetooth headphones.
When it matters:
When watching videos or gaming latency is a lot more noticeable than just listening to music.
Good value:
50ms or less
Noticeable difference:
5ms
Score distribution:
Negligible latency, wired connection.
In the box
- Cougar Immersa Headphones
- USB headset adapter
- Manuals
Conclusion
The best use case for the Cougar Immersa is gaming. They're decently comfortable, and they have negligible latency since they're wired. They also have a bass-heavy sound, that's better suited for gaming than critical listening, but should sound decent enough for most listeners. Unfortunately, they're not really versatile. They're not stable or portable enough for sports and do not block enough noise for commuting.
Slightly better than average for critical listening. They have a bit too much bass and boominess for more critical listeners. On the upside, they image well and have a decently balanced treble range that won't sound sharp on most tracks. Unfortunately, the elevated high-bass/low-mid will make them sound muddy and a bit dark overall, which isn't for everyone.
Poor for commuting. They have a bulky design not made for traveling. They also do not block a lot of noise so they won't be suitable for the loud environments involved in commuting.
Subpar for sports. They are not made for running and jogging. They're big, bulky headphones with a gaming only control scheme and a wired design that's not practical to workout with.
Not ideal for office use. They don't block a lot of noise so you will hear what's going on around you and they leak quite a bit so they may distract your colleagues.
Decent for home theater use. The low latency wired connection and decently comfortable design makes them okay for watching movies. However, they won't be ideal for all home theater setups. The cable is relatively short, and may not be long enough unless you have a 1/8 TRS extension cord.
Above-average for gaming. The Cougar Immersa have a good mic and a wired design with negligible latency. They also have a bass-heavy sound that's suitable for gaming. They're not wireless, so they're not as convenient as some of the other gaming headsets we've reviewed. They also have no software support which makes them feel lacking in customization options.
