Products
Audeze LCD-X
Fostex TH900mk2 Limited Edition
early access
Tested using Methodology v2.0
Updated Aug 27, 2025 07:48 PM
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Tested using Methodology v2.0
Updated Jan 29, 2026 07:16 PM
This review is in Early access
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TypeOver-ear
Noise CancellingNo
EnclosureOpen-Back
Bass Amount
Slightly Underemphasized (-2 dB)
WirelessNo
TransducerPlanar Magnetic
Treble Amount
Underemphasized (-4 dB)
MicNo
Sound Signature
Warm
Type
Noise Cancelling
Enclosure
Bass Amount
Wireless
Transducer
Treble Amount
Mic
Sound Signature
Our Verdict
Audeze LCD-X
Fostex TH900mk2
Full comparison details regarding individual product score sets can be found in the section below
0
Variants
- LCD-X (Black (Leather))
- LCD-X (Black (Leather-Free))
- TH900mk2 (Bordeaux Red)
- TH900mk2 (Onyx Black)
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Black (Leather)
LCD-X
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Bordeaux Red
TH900mk2
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Black (Leather-Free)
LCD-X
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B&H
Onyx Black
TH900mk2
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Main Differences for
Sports And Fitness
Sports And Fitness
Threshold
Sports And Fitness
5.6
Full Comparison
Sound
Sound Profile
Sound Profile
Preview Graph
Normalization Frequency
600 Hz
Bass Amount
Slightly Underemphasized (-2 dB)
Treble Amount
Underemphasized (-4 dB)
Sound Signature
Warm
Frequency Response Consistency
7.9
Consistency L
Preview Graph
Consistency R
Preview Graph
Std. Deviation
0.89 dB
Raw Frequency Response
Raw FR L
Preview Graph
Raw FR R
Preview Graph
Bass Profile: Target Compliance
8.4
Bass Profile: Target Compliance
Preview Graph
RMS Deviation From Target
3.7 dB
Low-Frequency Extension
22.45 Hz
Low Bass
-4.81 dB
Mid Bass
-2.18 dB
High Bass
0.83 dB
Mid-Range Profile: Target Compliance
9.2
Mid-Range Profile: Target Compliance
Preview Graph
RMS Deviation From Target
1.22 dB
Low Mid
0.77 dB
Mid-Mid
0.29 dB
High Mid
-1.79 dB
Treble Profile: Target Compliance
5.9
Treble Profile: Target Compliance
Preview Graph
RMS Deviation From Target
5.25 dB
Low Treble
-5.93 dB
Mid Treble
-2.5 dB
High Treble
-6.36 dB
Peaks/Dips
7.9
Peaks/Dips Graph
Preview Graph
Peaks
1.21 dB
Dips
1.47 dB
Stereo Mismatch
8.6
Frequency Response Mismatch
Preview Graph
Phase Response Mismatch
Preview Graph
Weighted Amplitude Mismatch
0.11 dB
Weighted Frequency Response Mismatch
0.95 dB
Weighted Phase Mismatch
1.3°
Group Delay
3.4
Group Delay
Preview Graph
Weighted Group Delay
2.0 ms
Cumulative Spectral Decay
CSD
Compare High-Res
PRTF
6.4
PRTF
Preview Graph
PRTF Accuracy (RMS Deviation)
3.17 dB
PRTF Size (Avg.)
3.27 dB
PRTF Distance
12.08 dB
Harmonic Distortion
9.7
Harmonics Levels
Preview Graph
THD Ratio
Preview Graph
WHD @ 94 dB SPL
0.03%
WHD @ 104 dB SPL
0.03%
Electrical Aspects
Impedance
Preview Graph
Sensitivity @1kHz-1V
113.8 dB SPL
Bluetooth Max SPL
N/A
Virtual Soundstage
0.0
Virtual Soundstage
Compare High-Res
Head Modeling
No
Speaker Modeling
No
Room Ambience
No
Head Tracking
No
Virtual Surround
No
Test Settings
Firmware
No Firmware
Power
Passive
Connection
Wired
Codec
PCM, 24-bit, 48kHz
Test Instrument
Audio Precision APx517B
EQ
No EQ
ANC
No ANC
Tip/Pad
Default
Microphone
No Microphone
Design
Style
Design Picture 2
Compare High-Res
Type
Over-ear
Enclosure
Open-Back
Wireless
No
Transducer
Planar Magnetic
Comfort
8.0
Comfort Picture
Compare High-Res
Weight
1.33 lbs
Clamping Force
1.3 lbs
Controls
0.0
Controls Picture
Compare High-Res
OS Compatibility
No Controls
Ease Of Use
No Controls
Feedback
No Controls
Call/Music Control
No
Volume Control
No
Microphone Control
No
Channel Mixing
No
Noise Cancelling Control
No
Talk-Through
No
Additional Controls
No
Portability
5.1
Portability Picture
Compare High-Res
L
8.3" (21.0 cm)
W
6.7" (17.0 cm)
H
4.8" (12.2 cm)
Volume
266.12 in³ (4,360.93 cm³)
Transmitter Required
No
Case
9.0
Case Picture
Compare High-Res
Type
Hard case
L
11.6" (29.4 cm)
W
10.0" (25.5 cm)
H
7.4" (18.7 cm)
Volume
853.92 in³ (13,993.26 cm³)
Build Quality
8.5
Build Quality Picture
Compare High-Res
Stability
6.0
Stability Picture
Compare High-Res
Headshots 1
Angled Picture
Compare High-Res
Side Picture
Compare High-Res
Headshots 2
Front Picture
Compare High-Res
Rear Picture
Compare High-Res
Top
Top Picture
Compare High-Res
In The Box
In The Box Picture
Compare High-Res
Isolation
Noise Isolation - Full Range
0.6
Noise Isolation - Full Range Graph
Preview Graph
Noise Cancelling
No
Overall Attenuation
-1.27 dB
Bass
4.70 dB
Mid
-0.44 dB
Treble
-9.45 dB
Noise Isolation - Common Scenarios
0.6
Noise Isolation - Common Scenarios Graph
Preview Graph
Airplane Noise Attenuation
-1.14 dB
Airplane Noise Isolation Audio
Office Noise Attenuation
-0.96 dB
Office Noise Isolation Audio
Street Noise Attenuation
-1.32 dB
Street Noise Isolation Audio
Noise Isolation - Voice Handling
Female Voice 1
Male Voice 1
Female Voice 2
Male Voice 2
ANC Wind Handling
ANC Wind Handling Graph
ANC Wind Noise
N/A
Leakage
1.1
Leakage
Preview Graph
Leakage Audio
Overall Leakage @ 1ft
65.57 dB
Microphone
Microphone Style
Integrated
No
In-Line
No
Boom
No
Detachable Boom
No
Mic
No
Recording Quality
0.0
Microphone Frequency Response
Recorded Speech
N/A
LFE
N/A
FR Std. Dev.
N/A
HFE
N/A
Weighted THD
N/A
Gain
N/A
Noise Handling
0.0
SpNR
SpNR
N/A
Noise Gate
No
Speech + Pink Noise Handling
N/A
Speech + Pink Noise Audio Sample
N/A
Speech + Subway Noise Handling
N/A
Speech + Subway Noise Audio Sample
N/A
Active Features
Battery
0.0
Battery Type
No Battery
Continuous Battery Life
N/A
Additional Charges
N/A
Total Battery Life
N/A
Charge Time
N/A
Power-Saving Feature
No
Audio While Charging
No
Passive Playback
Passive Headphone
Charging Port
None
App Support
0.0
App Picture
Compare High-Res
App Name
No App
iOS
No
Android
No
macOS
No
Windows
No
Equalizer
No
ANC Control
No
Mic Control
No
Room Effects
No
Playback Control
No
Button Mapping
No
Surround Support
No
Connectivity
Wired Connection
9.9
Cable Picture
Compare High-Res
Analog Audio
Yes
USB Audio
No
Detachable
Yes
Length
6.23 ft (1.90 m)
Connector
4-Pin XLR
Latency - Analog
0.2 ms
Latency - USB
N/A
Recorded Latency
Recorded Latency Connection
Analog
Bluetooth Connection
0.0
Bluetooth Version
No Bluetooth
Multi-Device Pairing
No
Quick Pair (Android)
No
Quick Pair (iOS)
No
Line Of Sight Range
N/A
Latency - SBC
N/A
Latency - aptX
N/A
Latency - aptX Adaptive (High Quality)
N/A
Latency - aptX Adaptive (Low Latency)
N/A
Latency - LDAC
N/A
Recorded Latency
N/A
Recorded Latency Codec
No Bluetooth Audio
AAC Support
No
Wireless Connection (Dongle)
0.0
Line Of Sight Range
N/A
Latency - Dongle
N/A
Recorded Latency
N/A
PC Compatibility
Analog
Audio Only
Wired USB
No
Non-BT Wireless
No
PlayStation Compatibility
PS4 Analog
Audio Only
PS4 Wired USB
No
PS4 Non-BT Wireless
No
PS5 Analog
Audio Only
PS5 Wired USB
No
PS5 Non-BT Wireless
No
Xbox Compatibility
Xbox One Analog
Audio Only
Xbox One Wired USB
No
Xbox One Non-BT Wireless
No
Xbox Series X|S Analog
Audio Only
Xbox Series X|S Wired USB
No
Xbox Series X|S Non-BT Wireless
No
Base/Dock
0.0
Type
No Base/Dock
USB Input
No
Line In
No
Line Out
No
Optical Input
No
RCA Input
No
Dock Charging
No
Power Supply
No Base/Dock
Check Price
Black (Leather)
LCD-X
SEE PRICE
Amazon.com
Bordeaux Red
TH900mk2
SEE PRICE
Amazon.com
Black (Leather-Free)
LCD-X
SEE PRICE
B&H
Onyx Black
TH900mk2
SEE PRICE
Amazon.com
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Audeze LCD-X
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Audeze LCD-X vs Fostex TH900mk2 Limited Edition: Main Discussion
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