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  1. Table of Contents
  2. Top
  3. Main Differences
  4. Sound
    1. Sound Profile
    2. Frequency Response Consistency
    3. Raw Frequency Response
    4. Bass Profile: Target Compliance
    5. Mid-Range Profile: Target Compliance
    6. Treble Profile: Target Compliance
    7. Peaks/Dips
    8. Stereo Mismatch
    9. Group Delay
    10. Cumulative Spectral Decay
    11. PRTF
    12. Harmonic Distortion
    13. Electrical Aspects
    14. Virtual Soundstage
    15. Test Settings
  5. Design
    1. Style
    2. Comfort
    3. Controls
    4. Portability
    5. Case
    6. Build Quality
    7. Stability
    8. Headshots 1
    9. Headshots 2
    10. Top
    11. In The Box
  6. Isolation
    1. Noise Isolation - Full Range
    2. Noise Isolation - Common Scenarios
    3. Noise Isolation - Voice Handling
    4. ANC Wind Handling
    5. Leakage
  7. Microphone
    1. Microphone Style
    2. Recording Quality
    3. Noise Handling
  8. Active Features
    1. Battery
    2. App Support
  9. Connectivity
    1. Wired Connection
    2. Bluetooth Connection
    3. Wireless Connection (Dongle)
    4. PC Compatibility
    5. PlayStation Compatibility
    6. Xbox Compatibility
    7. Base/Dock
  10. Comments

TRUTHEAR x Crinacle ZERO vs THIEAUDIO Monarch MKIII

Side-by-Side Comparison

Products

TRUTHEAR x Crinacle ZERO
THIEAUDIO Monarch MKIII

Tested using Methodology v2.0

Updated May 20, 2025 05:09 PM

SEE PRICE
Amazon.com

Tested using Methodology v2.0

Updated May 16, 2025 05:51 PM

SEE PRICE
Walmart.com
TRUTHEAR x Crinacle ZERO Picture
THIEAUDIO Monarch MKIII Picture
  1. Recommended in 1 article:
  2. Earbuds For Gaming

Variants

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

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.

0 

Check Price

Blue
x Crinacle ZERO
SEE PRICE
Amazon.com
Black
Monarch MKIII
SEE PRICE
Walmart.com

Main Differences for
Sports And Fitness

Threshold 

0.10

Sports And Fitness 

6.8
6.4

Stability 
 

8.0
7.5

Portability 
 

9.2
8.3

Comfort 
 

7.5
7.0

Full Comparison

Sound

Sound Profile 
 

Sound Profile  

See details on graph tool
See details on graph tool

Normalization Frequency 
 

750 Hz
350 Hz

Bass Amount 
 

Emphasized (3 dB)
Emphasized (3 dB)

Treble Amount 
 

Slightly Emphasized (1 dB)
Balanced (-1 dB)

Sound Signature 
 

V-Shaped
Warm
Show Text 

Frequency Response Consistency 
 

8.6
9.1

Consistency L  

See details on graph tool
See details on graph tool

Consistency R  

See details on graph tool
See details on graph tool

Avg. Std. Deviation 
 

0.61 dB
0.38 dB
Show Text 

Raw Frequency Response 
 

Raw FR L  

See details on graph tool
See details on graph tool

Raw FR R  

See details on graph tool
See details on graph tool

Bass Profile: Target Compliance 
 

8.4
8.6

Bass Profile: Target Compliance  

See details on graph tool
See details on graph tool

RMS Deviation From Target 
 

3.8 dB
3.5 dB

Low-Frequency Extension 
 

20 Hz
20 Hz

Low Bass 
 

3.25 dB
4.16 dB

Mid Bass 
 

5.13 dB
3.57 dB

High Bass 
 

1.61 dB
1.52 dB
Show Text 

Mid-Range Profile: Target Compliance 
 

8.8
9.2

Mid-Range Profile: Target Compliance  

See details on graph tool
See details on graph tool

RMS Deviation From Target 
 

1.68 dB
1.23 dB

Low Mid 
 

-1.47 dB
-0.14 dB

Mid-Mid 
 

-0.26 dB
-0.52 dB

High Mid 
 

2.18 dB
1.87 dB
Show Text 

Treble Profile: Target Compliance 
 

9.7
9.1

Treble Profile: Target Compliance  

See details on graph tool
See details on graph tool

RMS Deviation From Target 
 

1.72 dB
2.41 dB

Low Treble 
 

1.72 dB
-0.2 dB

Mid Treble 
 

0.08 dB
-3.03 dB

High Treble 
 

-3.82 dB
-6.66 dB
Show Text 

Peaks/Dips 
 

8.3
8.5

Peaks/Dips Graph 
 

See details on graph tool
See details on graph tool

Peaks 
 

0.91 dB
0.7 dB

Dips 
 

1.66 dB
1.91 dB
Show Text 

Stereo Mismatch 
 

8.7
9.3

Frequency Response Mismatch  

See details on graph tool
See details on graph tool

Phase Response Mismatch  

See details on graph tool
See details on graph tool

Weighted Amplitude Mismatch 
 

0.1 dB
0.1 dB

Weighted Frequency Response Mismatch 
 

0.7 dB
0.6 dB

Weighted Phase Mismatch 
 

1.7°
0.6°
Show Text 

Group Delay 
 

6.6
8.0

Group Delay  

See details on graph tool
See details on graph tool

Weighted Group Delay 
 

1.3 ms
0.8 ms
Show Text 

Cumulative Spectral Decay 
 

CSD  

TRUTHEAR x Crinacle ZERO CSD
THIEAUDIO Monarch MKIII CSD

PRTF 
 

0.0
0.0

PRTF  

TRUTHEAR x Crinacle ZERO PRTF
THIEAUDIO Monarch MKIII PRTF

PRTF Accuracy (RMS Deviation) 
 

N/A
N/A

PRTF Size (Avg.) 
 

N/A
N/A

PRTF Distance 
 

N/A
N/A
Show Text 

Harmonic Distortion 
 

9.1
8.0

Harmonics Levels  

See details on graph tool
See details on graph tool

THD Ratio  

See details on graph tool
See details on graph tool

WHD @ 94 dB SPL 
 

0.06%
0.25%

WHD @ 104 dB SPL 
 

0.22%
0.47%
Show Text 

Electrical Aspects 
 

Impedance  

See details on graph tool
See details on graph tool

Sensitivity @1kHz-1V 
 

115.9 dB SPL
119.7 dB SPL

Bluetooth Max SPL 
 

N/A
N/A
Show Text 

Virtual Soundstage 
 

0.0
0.0

Virtual Soundstage  

TRUTHEAR x Crinacle ZERO Virtual Soundstage
THIEAUDIO Monarch MKIII Virtual Soundstage

Head Modeling 
 

No
No

Speaker Modeling 
 

No
No

Room Ambience 
 

No
No

Head Tracking 
 

No
No

Virtual Surround 
 

No App
No App

Test Settings 
 

Firmware 
 

No Firmware
No Firmware

Power 
 

Passive
Passive

Connection 
 

Wired
Wired

Codec 
 

PCM, 24-bit, 48kHz
PCM, 24-bit, 48kHz

Test Instrument  

Audio Precision APx517B
Audio Precision APx517B

EQ 
 

No EQ
No EQ

ANC 
 

No ANC
No ANC

Tip/Pad 
 

Foam (medium)
Foam (small)

Microphone 
 

No Microphone
No Microphone
Show Text 
Design

Style  

Design Picture 2  

TRUTHEAR x Crinacle ZERO Design Picture 2
THIEAUDIO Monarch MKIII Design Picture 2

Type  

In-Ear
In-Ear

Enclosure  

Closed-Back
Closed-Back

Wireless  

No
No

Transducer  

Dynamic
Hybrid
Show Text 

Comfort 
 

7.5
7.0

Comfort Picture  

TRUTHEAR x Crinacle ZERO Comfort Picture
THIEAUDIO Monarch MKIII Comfort Picture

Weight  

0.04 lbs
0.1 lbs

Clamping Force 
 

0 lbs
0 lbs
Show Text 

Controls 
 

0.0
0.0

Controls Picture  

TRUTHEAR x Crinacle ZERO Controls Picture
THIEAUDIO Monarch MKIII Controls Picture

OS Compatibility 
 

No Controls
No Controls

Ease Of Use  

No Controls
No Controls

Feedback  

No Controls
No Controls

Call/Music Control  

No
No

Volume Control  

No
No

Microphone Control  

No
No

Channel Mixing 
 

No
No

Noise Cancelling Control  

No
No

Talk-Through 
 

No
No

Additional Controls  

No
No

Portability 
 

9.2
8.3

Portability Picture  

TRUTHEAR x Crinacle ZERO Portability Picture
THIEAUDIO Monarch MKIII Portability Picture

 

2.8" (7.1 cm)
1.9" (4.8 cm)

 

1.1" (2.7 cm)
3.7" (9.3 cm)

 

0.9" (2.3 cm)
1.2" (3.0 cm)

Volume  

2.69 in³ (44.10 cm³)
8.17 in³ (133.92 cm³)

Transmitter Required  

No
No
Show Text 

Case 
 

7.0
8.0

Case Picture  

TRUTHEAR x Crinacle ZERO Case Picture
THIEAUDIO Monarch MKIII Case Picture

Type  

Pouch
Hard case

 

3.2" (8.2 cm)
4.3" (10.9 cm)

 

2.7" (6.9 cm)
5.4" (13.8 cm)

 

1.0" (2.6 cm)
1.6" (4.0 cm)

Volume  

8.97 in³ (147.00 cm³)
36.72 in³ (601.68 cm³)
Show Text 

Build Quality 
 

7.5
7.5

Build Quality Picture  

TRUTHEAR x Crinacle ZERO Build Quality Picture
THIEAUDIO Monarch MKIII Build Quality Picture
Show Text 

Stability 
 

8.0
7.5

Stability Picture  

TRUTHEAR x Crinacle ZERO Stability Picture
THIEAUDIO Monarch MKIII Stability Picture
Show Text 

Headshots 1  

Angled Picture  

TRUTHEAR x Crinacle ZERO Angled Picture
THIEAUDIO Monarch MKIII Angled Picture

Side Picture  

TRUTHEAR x Crinacle ZERO Side Picture
THIEAUDIO Monarch MKIII Side Picture

Headshots 2  

Front Picture  

TRUTHEAR x Crinacle ZERO Front Picture
THIEAUDIO Monarch MKIII Front Picture

Rear Picture  

TRUTHEAR x Crinacle ZERO Rear Picture
THIEAUDIO Monarch MKIII Rear Picture

Top  

Top Picture  

TRUTHEAR x Crinacle ZERO Top Picture
THIEAUDIO Monarch MKIII Top Picture

In The Box  

In The Box Picture  

TRUTHEAR x Crinacle ZERO In The Box Picture
THIEAUDIO Monarch MKIII In The Box Picture
Show Text 
Isolation

Noise Isolation - Full Range 
 

6.4
8.1

Noise Isolation - Full Range Graph  

See details on graph tool
See details on graph tool

Noise Cancelling  

No
No

Overall Attenuation 
 

-16.34 dB
-21.12 dB

Bass 
 

-1.49 dB
-4.86 dB

Mid 
 

-21.48 dB
-23.92 dB

Treble 
 

-28.68 dB
-37.77 dB
Show Text 

Noise Isolation - Common Scenarios 
 

5.4
7.3

Noise Isolation - Common Scenarios Graph  

See details on graph tool
See details on graph tool

Airplane Noise Attenuation 
 

-12.66 dB
-16.97 dB

Airplane Noise Isolation Audio 
 

Office Noise Attenuation 
 

-13.31 dB
-17.47 dB

Office Noise Isolation Audio 
 

Street Noise Attenuation 
 

-14.93 dB
-20.02 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
THIEAUDIO Monarch MKIII ANC Wind Handling Graph

ANC Wind Noise 
 

N/A
N/A

Leakage 
 

9.8
9.5

Leakage  

See details on graph tool
See details on graph tool

Leakage Audio 
 

Overall Leakage @ 1ft 
 

22.1 dB
24.33 dB
Show Text 
Microphone

Microphone Style 
 

Integrated 
 

No
No

In-Line 
 

No
No

Boom 
 

No
No

Detachable Boom 
 

No
No

Mic  

No
No

Recording Quality 
 

0.0
0.0

Microphone Frequency Response  

TRUTHEAR x Crinacle ZERO Microphone Frequency Response
THIEAUDIO Monarch MKIII Microphone Frequency Response

Recorded Speech 
 

N/A
N/A

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 
 

0.0
0.0

SpNR  

TRUTHEAR x Crinacle ZERO SpNR
THIEAUDIO Monarch MKIII SpNR

SpNR 
 

N/A
N/A

Noise Gate 
 

No
No

Speech + Pink Noise Handling 
 

N/A
N/A

Speech + Pink Noise Audio Sample  

N/A
N/A

Speech + Subway Noise Handling 
 

N/A
N/A

Speech + Subway Noise Audio Sample  

N/A
N/A
Active Features

Battery 
 

0.0
0.0

Battery Type 
 

No Battery
No Battery

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 
 

No
No

Audio While Charging 
 

No
No

Passive Playback 
 

Passive Headphone
Passive Headphone

Charging Port  

None
None

App Support 
 

0.0
0.0

App Picture  

TRUTHEAR x Crinacle ZERO App Picture
THIEAUDIO Monarch MKIII App Picture

App Name  

No App
No App

iOS  

No
No

Android  

No
No

macOS  

No
No

Windows  

No
No

Equalizer 
 

No
No

ANC Control 
 

No
No

Mic Control  

No
No

Room Effects 
 

No
No

Playback Control 
 

No
No

Button Mapping  

No
No

Surround Support 
 

No
No
Show Text 
Connectivity

Wired Connection 
 

9.9
9.9

Cable Picture  

TRUTHEAR x Crinacle ZERO Cable Picture
THIEAUDIO Monarch MKIII Cable Picture

Analog Audio 
 

Yes
Yes

USB Audio 
 

No
No

Detachable 
 

Yes
Yes

Length 
 

4.33 ft (1.32 m)
3.94 ft (1.20 m)

Connector 
 

1/8" TRS
1/8" TRS

Latency - Analog 
 

0.3 ms
0.2 ms

Latency - USB 
 

N/A
N/A

Recorded Latency 
 

Recorded Latency Connection  

Analog
Analog
Show Text 

Bluetooth Connection 
 

0.0
0.0

Bluetooth Version 
 

No Bluetooth
N/A

Multi-Device Pairing 
 

No
N/A

Quick Pair (Android) 
 

No
N/A

Quick Pair (iOS) 
 

No
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 
 

N/A
N/A

Recorded Latency Codec  

No Bluetooth Audio
N/A

AAC Support 
 

No
N/A

Wireless Connection (Dongle) 
 

0.0
0.0

Line Of Sight Range 
 

N/A
N/A

Latency - Dongle 
 

N/A
N/A

Recorded Latency 
 

N/A
N/A

PC Compatibility 
 

Analog 
 

Audio Only
Audio Only

Wired USB 
 

No
No

Non-BT Wireless 
 

No
No
Show Text 

PlayStation Compatibility 
 

PS4 Analog 
 

Audio Only
Audio Only

PS4 Wired USB 
 

No
No

PS4 Non-BT Wireless 
 

No
No

PS5 Analog 
 

Audio Only
Audio Only

PS5 Wired USB 
 

No
No

PS5 Non-BT Wireless 
 

No
No
Show Text 

Xbox Compatibility 
 

Xbox One Analog 
 

Audio Only
Audio Only

Xbox One Wired USB 
 

No
No

Xbox One Non-BT Wireless 
 

No
No

Xbox Series X|S Analog 
 

Audio Only
Audio Only

Xbox Series X|S Wired USB 
 

No
No

Xbox Series X|S Non-BT Wireless 
 

No
No
Show Text 

Base/Dock 
 

0.0
0.0

Type 
 

No Base/Dock
No Base/Dock

USB Input 
 

No
No

Line In 
 

No
No

Line Out 
 

No
No

Optical Input 
 

No
No

RCA Input 
 

No
No

Dock Charging 
 

No
No

Power Supply 
 

No Base/Dock
No Base/Dock

Check Price

Blue
x Crinacle ZERO
SEE PRICE
Amazon.com
Black
Monarch MKIII
SEE PRICE
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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