TRUTHEAR x Crinacle ZERO vs THIEAUDIO Monarch MKIII

Which Headphones Are Better?

Products

TRUTHEAR x Crinacle ZERO
THIEAUDIO Monarch MKIII

Tested using Methodology v2.0

Updated Jul 29, 2025 07:48 PM

SEE PRICE
Amazon.com

Tested using Methodology v2.1

Updated Mar 06, 2026 07:48 PM

Amazon.com
  1. Recommended in 2 articles:
  2. Earbuds For Gaming
  3. Earbuds Under $50

Our Verdict

TRUTHEAR x Crinacle ZERO

THIEAUDIO Monarch MKIII

The THIEAUDIO Monarch MKIII and the TRUTHEAR x Crinacle ZERO are targeted at different segments of the IEM market. The THIEAUDIO are much more expensive than the TRUTHEAR, but the two share a somewhat similar sound profile with a prominent bass response and balanced mids. That said, the THIEAUDIO's treble response skews the overall frequency response towards sounding warm, while the TRUTHEAR have a brighter treble response. If you're a bright trap triplet hi-hats fan, you might find the THIEAUDIO too dull.

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Variants

  • x Crinacle ZERO (Blue)
  • Monarch MKIII (Black)

Check Price

Blue
x Crinacle ZERO
SEE PRICE
Amazon.com
Black
Monarch MKIII
Amazon.com
Blue
x Crinacle ZERO
B&H
Black
Monarch MKIII
B&H
Blue
x Crinacle ZERO
BestBuy.com
Black
Monarch MKIII
BestBuy.com
Blue
x Crinacle ZERO
TRUTHEAR
Black
Monarch MKIII
THIEAUDIO
Blue
x Crinacle ZERO
Walmart.com
Black
Monarch MKIII
Walmart.com
Read more

Main Differences for
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Full Comparison

Sound

Sound Profile 
 

Sound Profile  

TRUTHEAR x Crinacle ZERO Sound Profile Sample

SAMPLE

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THIEAUDIO Monarch MKIII Sound Profile Sample

SAMPLE

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Normalization Frequency 
 

Lock Hz
Lock Hz

Bass Amount 
 

Locked
Locked

Treble Amount 
 

Locked
Locked

Sound Signature 
 

Locked
Locked
Show Text 

Frequency Response Consistency 
 

N/A
N/A

Consistency L  

TRUTHEAR x Crinacle ZERO Consistency L Sample

SAMPLE

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THIEAUDIO Monarch MKIII Consistency L Sample

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Consistency R  

TRUTHEAR x Crinacle ZERO Consistency R Sample

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THIEAUDIO Monarch MKIII Consistency R Sample

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Std. Deviation 
 

Lock dB
Lock dB
Show Text 

Raw Frequency Response 
 

Raw FR L  

TRUTHEAR x Crinacle ZERO Raw FR L Sample

SAMPLE

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THIEAUDIO Monarch MKIII Raw FR L Sample

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Raw FR R  

TRUTHEAR x Crinacle ZERO Raw FR R Sample

SAMPLE

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THIEAUDIO Monarch MKIII Raw FR R Sample

SAMPLE

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Bass Profile: Target Compliance 
 

N/A
N/A

Bass Profile: Target Compliance  

TRUTHEAR x Crinacle ZERO Bass Profile: Target Compliance Sample

SAMPLE

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THIEAUDIO Monarch MKIII Bass Profile: Target Compliance Sample

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RMS Deviation From Target 
 

Lock dB
Lock dB

Low-Frequency Extension 
 

Lock Hz
Lock Hz

Low Bass 
 

Lock dB
Lock dB

Mid Bass 
 

Lock dB
Lock dB

High Bass 
 

Lock dB
Lock dB
Show Text 

Mid-Range Profile: Target Compliance 
 

N/A
N/A

Mid-Range Profile: Target Compliance  

TRUTHEAR x Crinacle ZERO Mid-Range Profile: Target Compliance Sample

SAMPLE

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THIEAUDIO Monarch MKIII Mid-Range Profile: Target Compliance Sample

SAMPLE

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RMS Deviation From Target 
 

Lock dB
Lock dB

Low Mid 
 

Lock dB
Lock dB

Mid-Mid 
 

Lock dB
Lock dB

High Mid 
 

Lock dB
Lock dB
Show Text 

Treble Profile: Target Compliance 
 

N/A
N/A

Treble Profile: Target Compliance  

TRUTHEAR x Crinacle ZERO Treble Profile: Target Compliance Sample

SAMPLE

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THIEAUDIO Monarch MKIII Treble Profile: Target Compliance Sample

SAMPLE

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RMS Deviation From Target 
 

Lock dB
Lock dB

Low Treble 
 

Lock dB
Lock dB

Mid Treble 
 

Lock dB
Lock dB

High Treble 
 

Lock dB
Lock dB
Show Text 

Peaks/Dips 
 

N/A
N/A

Peaks/Dips Graph 
 

TRUTHEAR x Crinacle ZERO Peaks/Dips Graph Sample

SAMPLE

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THIEAUDIO Monarch MKIII Peaks/Dips Graph Sample

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Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB
Show Text 

Stereo Mismatch 
 

N/A
N/A

Frequency Response Mismatch  

TRUTHEAR x Crinacle ZERO Frequency Response Mismatch Sample

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THIEAUDIO Monarch MKIII Frequency Response Mismatch Sample

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Phase Response Mismatch  

TRUTHEAR x Crinacle ZERO Phase Response Mismatch Sample

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THIEAUDIO Monarch MKIII Phase Response Mismatch Sample

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Weighted Amplitude Mismatch 
 

Lock dB
Lock dB

Weighted Frequency Response Mismatch 
 

Lock dB
Lock dB

Weighted Phase Mismatch 
 

Lock°
Lock°
Show Text 

Group Delay 
 

N/A
N/A

Group Delay  

TRUTHEAR x Crinacle ZERO Group Delay Sample

SAMPLE

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THIEAUDIO Monarch MKIII Group Delay Sample

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Weighted Group Delay 
 

Lock ms
Show Text 

Cumulative Spectral Decay 
 

CSD  

TRUTHEAR x Crinacle ZERO CSD Sample

SAMPLE

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THIEAUDIO Monarch MKIII CSD Sample

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PRTF 
 

N/A
N/A

PRTF  

TRUTHEAR x Crinacle ZERO PRTF Sample

SAMPLE

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THIEAUDIO Monarch MKIII PRTF Sample

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PRTF Accuracy (RMS Deviation) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A
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Harmonic Distortion 
 

N/A
N/A

Harmonics Levels  

TRUTHEAR x Crinacle ZERO Harmonics Levels Sample

SAMPLE

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THIEAUDIO Monarch MKIII Harmonics Levels Sample

SAMPLE

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THD Ratio  

TRUTHEAR x Crinacle ZERO THD Ratio Sample

SAMPLE

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THIEAUDIO Monarch MKIII THD Ratio Sample

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WHD @ 94 dB SPL 
 

Lock%
Lock%

WHD @ 104 dB SPL 
 

Lock%
Lock%
Show Text 

Electrical Aspects 
 

Impedance  

TRUTHEAR x Crinacle ZERO Impedance Sample

SAMPLE

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THIEAUDIO Monarch MKIII Impedance Sample

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Sensitivity @1kHz-1V 
 

Lock dB SPL
Lock dB SPL

Bluetooth Max SPL 
 

N/A
N/A
Show Text 

Virtual Soundstage 
 

N/A
N/A

Virtual Soundstage  

TRUTHEAR x Crinacle ZERO Virtual Soundstage Sample

SAMPLE

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THIEAUDIO Monarch MKIII Virtual Soundstage Sample

SAMPLE

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Head Modeling 
 

Locked
Locked

Speaker Modeling 
 

Locked
Locked

Room Ambience 
 

Locked
Locked

Head Tracking 
 

Locked
Locked

Virtual Surround 
 

Locked
Locked

Test Settings 
 

Firmware 
 

Locked
Locked

Power 
 

Locked
Locked

Connection 
 

Locked
Locked

Codec 
 

Locked
Locked

Test Instrument  

Locked
Locked

EQ 
 

Locked
Locked

ANC 
 

Locked
Locked

Tip/Pad 
 

Locked
Locked

Microphone 
 

Locked
Locked
Show Text 
Design

Style  

Design Picture 2  

TRUTHEAR x Crinacle ZERO Design Picture 2 Sample

SAMPLE

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THIEAUDIO Monarch MKIII Design Picture 2 Sample

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Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked
Show Text 

Comfort 
 

N/A
N/A

Comfort Picture  

TRUTHEAR x Crinacle ZERO Comfort Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Comfort Picture Sample

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Weight  

Lock lbs
Lock lbs

Clamping Force 
 

Lock lbs
Lock lbs
Show Text 

Controls 
 

N/A
N/A

Controls Picture  

TRUTHEAR x Crinacle ZERO Controls Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Controls Picture Sample

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OS Compatibility 
 

Locked
Locked

Ease Of Use  

Locked
Locked

Feedback  

Locked
Locked

Call/Music Control  

Locked
Locked

Volume Control  

Locked
Locked

Microphone Control  

Locked
Locked

Channel Mixing 
 

Locked
Locked

Noise Cancelling Control  

Locked
Locked

Talk-Through 
 

Locked
Locked

Additional Controls  

Locked
Locked

Portability 
 

N/A
N/A

Portability Picture  

TRUTHEAR x Crinacle ZERO Portability Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Portability Picture Sample

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Lock" (Lock cm)
Lock" (Lock cm)

 

Lock" (Lock cm)
Lock" (Lock cm)

 

Lock" (Lock cm)
Lock" (Lock cm)

Volume  

Lock in³ (Lock cm³)
Lock in³ (Lock cm³)

Transmitter Required  

Locked
Locked
Show Text 

Case 
 

N/A
N/A

Case Picture  

TRUTHEAR x Crinacle ZERO Case Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Case Picture Sample

SAMPLE

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Type  

Locked
Locked

 

Lock" (Lock cm)
Lock" (Lock cm)

 

Lock" (Lock cm)
Lock" (Lock cm)

 

Lock" (Lock cm)
Lock" (Lock cm)

Volume  

Lock in³ (Lock cm³)
Lock in³ (Lock cm³)
Show Text 

Build Quality 
 

N/A
N/A

Build Quality Picture  

TRUTHEAR x Crinacle ZERO Build Quality Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Build Quality Picture Sample

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Show Text 

Stability 
 

N/A
N/A

Stability Picture  

TRUTHEAR x Crinacle ZERO Stability Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Stability Picture Sample

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Show Text 

Headshots 1  

Angled Picture  

TRUTHEAR x Crinacle ZERO Angled Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Angled Picture Sample

SAMPLE

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Side Picture  

TRUTHEAR x Crinacle ZERO Side Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Side Picture Sample

SAMPLE

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Headshots 2  

Front Picture  

TRUTHEAR x Crinacle ZERO Front Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Front Picture Sample

SAMPLE

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Rear Picture  

TRUTHEAR x Crinacle ZERO Rear Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Rear Picture Sample

SAMPLE

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Top  

Top Picture  

TRUTHEAR x Crinacle ZERO Top Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Top Picture Sample

SAMPLE

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In The Box  

In The Box Picture  

TRUTHEAR x Crinacle ZERO In The Box Picture Sample

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THIEAUDIO Monarch MKIII In The Box Picture Sample

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Show Text 
Isolation

Noise Isolation - Full Range 
 

N/A
N/A

Noise Isolation - Full Range Graph  

TRUTHEAR x Crinacle ZERO Noise Isolation - Full Range Graph Sample

SAMPLE

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THIEAUDIO Monarch MKIII Noise Isolation - Full Range Graph Sample

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Noise Cancelling  

Locked
Locked

Overall Attenuation 
 

Lock dB
Lock dB

Bass 
 

Lock dB
Lock dB

Mid 
 

Lock dB
Lock dB

Treble 
 

Lock dB
Lock dB
Show Text 

Noise Isolation - Common Scenarios 
 

N/A
N/A

Noise Isolation - Common Scenarios Graph  

TRUTHEAR x Crinacle ZERO Noise Isolation - Common Scenarios Graph Sample

SAMPLE

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THIEAUDIO Monarch MKIII Noise Isolation - Common Scenarios Graph Sample

SAMPLE

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Airplane Noise Attenuation 
 

Lock dB
Lock dB

Airplane Noise Isolation Audio 
 

Office Noise Attenuation 
 

Lock dB
Lock dB

Office Noise Isolation Audio 
 

Street Noise Attenuation 
 

Lock dB
Lock dB

Street Noise Isolation Audio 
 

Show Text 

Noise Isolation - Voice Handling 
 

Female Voice 1 
 

Male Voice 1 
 

Female Voice 2 
 

Male Voice 2 
 

ANC Wind Handling 
 

ANC Wind Handling Graph  

TRUTHEAR x Crinacle ZERO ANC Wind Handling Graph Sample

SAMPLE

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THIEAUDIO Monarch MKIII ANC Wind Handling Graph Sample

SAMPLE

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ANC Wind Noise 
 

Leakage 
 

N/A
N/A

Leakage  

TRUTHEAR x Crinacle ZERO Leakage Sample

SAMPLE

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THIEAUDIO Monarch MKIII Leakage Sample

SAMPLE

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Leakage Audio 
 

Overall Leakage @ 1ft 
 

Lock dB
Lock dB
Show Text 
Microphone

Microphone Style 
 

Integrated 
 

Locked
Locked

In-Line 
 

Locked
Locked

Boom 
 

Locked
Locked

Detachable Boom 
 

Locked
Locked

Mic  

Locked
Locked

Recording Quality 
 

N/A
N/A

Microphone Frequency Response  

TRUTHEAR x Crinacle ZERO Microphone Frequency Response Sample

SAMPLE

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THIEAUDIO Monarch MKIII Microphone Frequency Response Sample

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Recorded Speech 
 

LFE 
 

N/A
N/A

FR Std. Dev. 
 

N/A
N/A

HFE 
 

N/A
N/A

Weighted THD 
 

N/A
N/A

Gain 
 

N/A
N/A

Noise Handling 
 

N/A
N/A

SpNR  

TRUTHEAR x Crinacle ZERO SpNR Sample

SAMPLE

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THIEAUDIO Monarch MKIII SpNR Sample

SAMPLE

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SpNR 
 

N/A
N/A

Noise Gate 
 

Locked
Locked

Speech + Pink Noise Handling 
 

N/A
N/A

Speech + Pink Noise Audio Sample  

Speech + Subway Noise Handling 
 

N/A
N/A

Speech + Subway Noise Audio Sample  

Active Features

Battery 
 

N/A
N/A

Battery Type 
 

Locked
Locked

Continuous Battery Life 
 

N/A
N/A

Additional Charges 
 

N/A
N/A

Total Battery Life 
 

N/A
N/A

Charge Time 
 

N/A
N/A

Power-Saving Feature 
 

Locked
Locked

Audio While Charging 
 

Locked
Locked

Passive Playback 
 

Locked
Locked

Charging Port  

Locked
Locked

App Support 
 

N/A
N/A

App Picture  

TRUTHEAR x Crinacle ZERO App Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII App Picture Sample

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App Name  

Locked
Locked

iOS  

Locked
Locked

Android  

Locked
Locked

macOS  

Locked
Locked

Windows  

Locked
Locked

Equalizer 
 

Locked
Locked

ANC Control 
 

Locked
Locked

Mic Control  

Locked
Locked

Room Effects 
 

Locked
Locked

Playback Control 
 

Locked
Locked

Button Mapping  

Locked
Locked

Surround Support 
 

Locked
Locked
Show Text 
Connectivity

Wired Connection 
 

N/A
N/A

Cable Picture  

TRUTHEAR x Crinacle ZERO Cable Picture Sample

SAMPLE

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THIEAUDIO Monarch MKIII Cable Picture Sample

SAMPLE

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Analog Audio 
 

Locked
Locked

USB Audio 
 

Locked
Locked

Detachable 
 

Locked
Locked

Length 
 

Lock ft (Lock m)
Lock ft (Lock m)

Connector 
 

Locked
Locked

Latency - Analog 
 

Lock ms
Lock ms

Latency - USB 
 

N/A
N/A

Recorded Latency 
 

Recorded Latency Connection  

Locked
Locked
Show Text 

Bluetooth Connection 
 

N/A
N/A

Bluetooth Version 
 

Locked
N/A

Multi-Device Pairing 
 

Locked
N/A

Quick Pair (Android) 
 

Locked
N/A

Quick Pair (iOS) 
 

Locked
N/A

Line Of Sight Range 
 

N/A
N/A

Latency - SBC 
 

N/A
N/A

Latency - aptX 
 

N/A
N/A

Latency - aptX Adaptive (High Quality) 
 

N/A
N/A

Latency - aptX Adaptive (Low Latency) 
 

N/A
N/A

Latency - LDAC 
 

N/A
N/A

Recorded Latency 
 

Recorded Latency Codec  

Locked
N/A

AAC Support 
 

Locked
N/A

Wireless Connection (Dongle) 
 

N/A
N/A

Line Of Sight Range 
 

N/A
N/A

Latency - Dongle 
 

N/A
N/A

Recorded Latency 
 

PC Compatibility 
 

Analog 
 

Locked
Locked

Wired USB 
 

Locked
Locked

Non-BT Wireless 
 

Locked
Locked
Show Text 

PlayStation Compatibility 
 

PS4 Analog 
 

Locked
Locked

PS4 Wired USB 
 

Locked
Locked

PS4 Non-BT Wireless 
 

Locked
Locked

PS5 Analog 
 

Locked
Locked

PS5 Wired USB 
 

Locked
Locked

PS5 Non-BT Wireless 
 

Locked
Locked
Show Text 

Xbox Compatibility 
 

Xbox One Analog 
 

Locked
Locked

Xbox One Wired USB 
 

Locked
Locked

Xbox One Non-BT Wireless 
 

Locked
Locked

Xbox Series X|S Analog 
 

Locked
Locked

Xbox Series X|S Wired USB 
 

Locked
Locked

Xbox Series X|S Non-BT Wireless 
 

Locked
Locked
Show Text 

Base/Dock 
 

N/A
N/A

Type 
 

Locked
Locked

USB Input 
 

Locked
Locked

Line In 
 

Locked
Locked

Line Out 
 

Locked
Locked

Optical Input 
 

Locked
Locked

RCA Input 
 

Locked
Locked

Dock Charging 
 

Locked
Locked

Power Supply 
 

Locked
Locked

Check Price

Blue
x Crinacle ZERO
SEE PRICE
Amazon.com
Black
Monarch MKIII
Amazon.com
Blue
x Crinacle ZERO
B&H
Black
Monarch MKIII
B&H
Blue
x Crinacle ZERO
BestBuy.com
Black
Monarch MKIII
BestBuy.com
Blue
x Crinacle ZERO
TRUTHEAR
Black
Monarch MKIII
THIEAUDIO
Blue
x Crinacle ZERO
Walmart.com
Black
Monarch MKIII
Walmart.com

TRUTHEAR x Crinacle ZERO

THIEAUDIO Monarch MKIII

Comments

  1. Comparison

TRUTHEAR x Crinacle ZERO vs THIEAUDIO Monarch MKIII: Main Discussion

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