Fostex TH900mk2 Limited Edition vs Dan Clark Audio AEON 2 Noire

Which Headphones Are Better?

Products

Fostex TH900mk2 Limited Edition
Dan Clark Audio AEON 2 Noire

Tested using Methodology v2.0

Updated Feb 05, 2026 05:33 PM

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B&H

Tested using Methodology v2.0

Updated Feb 05, 2026 05:58 PM

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Amazon.com

Our Verdict

Fostex TH900mk2 Limited Edition

Dan Clark Audio AEON 2 Noire

The Dan Clark Audio AEON 2 Noire and Fostex TH900mk2 Limited Edition are both premium hi-fi enthusiast headphones. Both have a closed-back design, though the Fostex features dynamic drivers while the DCA headphones use planar dynamic ones instead. The DCA have a little more bass on tap relative to their treble, though your listening experience will depend on how well the headphones fit on your head, as they're more susceptible to frequency response consistency issues that affect bass delivery. While the DCA are more comfortable and come with a hard case, the Fostex have better build quality (though neither option is poorly constructed).

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Variants

  • TH900mk2 (Bordeaux Red)
  • TH900mk2 Limited Edition (Onyx Black)
  • AEON 2 Noire (Black)

Check Price

Bordeaux Red
TH900mk2
SEE PRICE
B&H
Black
AEON 2 Noire
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Amazon.com
Onyx Black
TH900mk2 Limited Edition
SEE PRICE
Amazon.com
Black
AEON 2 Noire
B&H
 
Black
AEON 2 Noire
BestBuy.com
 
Black
AEON 2 Noire
Walmart.com

Main Differences for
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Full Comparison

Sound

Sound Profile 
 

Sound Profile  

Fostex TH900mk2 Limited Edition Sound Profile Sample

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Dan Clark Audio AEON 2 Noire Sound Profile 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  

Fostex TH900mk2 Limited Edition Consistency L Sample

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Dan Clark Audio AEON 2 Noire Consistency L Sample

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Consistency R  

Fostex TH900mk2 Limited Edition Consistency R Sample

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Dan Clark Audio AEON 2 Noire Consistency R Sample

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Std. Deviation 
 

Lock dB
Lock dB
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Raw Frequency Response 
 

Raw FR L  

Fostex TH900mk2 Limited Edition Raw FR L Sample

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Dan Clark Audio AEON 2 Noire Raw FR L Sample

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Raw FR R  

Fostex TH900mk2 Limited Edition Raw FR R Sample

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Dan Clark Audio AEON 2 Noire Raw FR R Sample

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Bass Profile: Target Compliance 
 

N/A
N/A

Bass Profile: Target Compliance  

Fostex TH900mk2 Limited Edition Bass Profile: Target Compliance Sample

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Dan Clark Audio AEON 2 Noire 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
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Mid-Range Profile: Target Compliance 
 

N/A
N/A

Mid-Range Profile: Target Compliance  

Fostex TH900mk2 Limited Edition Mid-Range Profile: Target Compliance Sample

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Dan Clark Audio AEON 2 Noire Mid-Range Profile: Target Compliance 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
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Treble Profile: Target Compliance 
 

N/A
N/A

Treble Profile: Target Compliance  

Fostex TH900mk2 Limited Edition Treble Profile: Target Compliance Sample

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Dan Clark Audio AEON 2 Noire Treble Profile: Target Compliance 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
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Peaks/Dips 
 

N/A
N/A

Peaks/Dips Graph 
 

Fostex TH900mk2 Limited Edition Peaks/Dips Graph Sample

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Dan Clark Audio AEON 2 Noire Peaks/Dips Graph Sample

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Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB
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Stereo Mismatch 
 

N/A
N/A

Frequency Response Mismatch  

Fostex TH900mk2 Limited Edition Frequency Response Mismatch Sample

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Dan Clark Audio AEON 2 Noire Frequency Response Mismatch Sample

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Phase Response Mismatch  

Fostex TH900mk2 Limited Edition Phase Response Mismatch Sample

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Dan Clark Audio AEON 2 Noire 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°
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Group Delay 
 

N/A
N/A

Group Delay  

Fostex TH900mk2 Limited Edition Group Delay Sample

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Dan Clark Audio AEON 2 Noire Group Delay Sample

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Weighted Group Delay 
 

N/A
Lock ms
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Cumulative Spectral Decay 
 

CSD 
 

Fostex TH900mk2 Limited Edition CSD Sample

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Dan Clark Audio AEON 2 Noire CSD Sample

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PRTF 
 

N/A
N/A

PRTF  

Fostex TH900mk2 Limited Edition PRTF Sample

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Dan Clark Audio AEON 2 Noire PRTF Sample

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PRTF Accuracy (RMS Deviation) 
 

Lock dB
Lock dB

PRTF Size (Avg.) 
 

Lock dB
Lock dB

PRTF Distance 
 

Lock dB
Lock dB
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Harmonic Distortion 
 

N/A
N/A

Harmonics Levels  

Fostex TH900mk2 Limited Edition Harmonics Levels Sample

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Dan Clark Audio AEON 2 Noire Harmonics Levels Sample

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THD Ratio  

Fostex TH900mk2 Limited Edition THD Ratio Sample

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Dan Clark Audio AEON 2 Noire THD Ratio Sample

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WHD @ 94 dB SPL 
 

Lock%
Lock%

WHD @ 104 dB SPL 
 

Lock%
Lock%
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Electrical Aspects 
 

Impedance  

Fostex TH900mk2 Limited Edition Impedance Sample

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Dan Clark Audio AEON 2 Noire Impedance Sample

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Sensitivity @1kHz-1V 
 

Lock dB SPL
Lock dB SPL

Bluetooth Max SPL 
 

N/A
N/A
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Virtual Soundstage 
 

N/A
N/A

Virtual Soundstage 
 

Fostex TH900mk2 Limited Edition Virtual Soundstage Sample

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Dan Clark Audio AEON 2 Noire Virtual Soundstage 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
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Design

Style  

Design Picture 2 
 

Fostex TH900mk2 Limited Edition Design Picture 2 Sample

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Dan Clark Audio AEON 2 Noire Design Picture 2 Sample

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Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked
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Comfort 
 

N/A
N/A

Comfort Picture 
 

Fostex TH900mk2 Limited Edition Comfort Picture Sample

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Dan Clark Audio AEON 2 Noire Comfort Picture Sample

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Weight  

Lock lbs
Lock lbs

Clamping Force 
 

Lock lbs
Lock lbs
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Controls 
 

N/A
N/A

Controls Picture 
 

Fostex TH900mk2 Limited Edition Controls Picture Sample

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Dan Clark Audio AEON 2 Noire 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 
 

Fostex TH900mk2 Limited Edition Portability Picture Sample

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Dan Clark Audio AEON 2 Noire 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
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Case 
 

N/A
N/A

Case Picture 
 

Fostex TH900mk2 Limited Edition Case Picture Sample

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Dan Clark Audio AEON 2 Noire Case Picture Sample

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Type  

Locked
Locked

 

N/A
Lock" (Lock cm)

 

N/A
Lock" (Lock cm)

 

N/A
Lock" (Lock cm)

Volume  

N/A
Lock in³ (Lock cm³)
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Build Quality 
 

N/A
N/A

Build Quality Picture 
 

Fostex TH900mk2 Limited Edition Build Quality Picture Sample

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Dan Clark Audio AEON 2 Noire Build Quality Picture Sample

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Stability 
 

N/A
N/A

Stability Picture 
 

Fostex TH900mk2 Limited Edition Stability Picture Sample

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Dan Clark Audio AEON 2 Noire Stability Picture Sample

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Headshots 1  

Angled Picture 
 

Fostex TH900mk2 Limited Edition Angled Picture Sample

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Dan Clark Audio AEON 2 Noire Angled Picture Sample

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Side Picture 
 

Fostex TH900mk2 Limited Edition Side Picture Sample

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Dan Clark Audio AEON 2 Noire Side Picture Sample

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Headshots 2  

Front Picture 
 

Fostex TH900mk2 Limited Edition Front Picture Sample

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Dan Clark Audio AEON 2 Noire Front Picture Sample

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Rear Picture 
 

Fostex TH900mk2 Limited Edition Rear Picture Sample

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Dan Clark Audio AEON 2 Noire Rear Picture Sample

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Top  

Top Picture 
 

Fostex TH900mk2 Limited Edition Top Picture Sample

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Dan Clark Audio AEON 2 Noire Top Picture Sample

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In The Box  

In The Box Picture 
 

Fostex TH900mk2 Limited Edition In The Box Picture Sample

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Dan Clark Audio AEON 2 Noire 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  

Fostex TH900mk2 Limited Edition Noise Isolation - Full Range Graph Sample

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Dan Clark Audio AEON 2 Noire 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  

Fostex TH900mk2 Limited Edition Noise Isolation - Common Scenarios Graph Sample

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Dan Clark Audio AEON 2 Noire Noise Isolation - Common Scenarios Graph 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  

Fostex TH900mk2 Limited Edition ANC Wind Handling Graph Sample

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Dan Clark Audio AEON 2 Noire ANC Wind Handling Graph Sample

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ANC Wind Noise 
 

Leakage 
 

N/A
N/A

Leakage  

Fostex TH900mk2 Limited Edition Leakage Sample

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Dan Clark Audio AEON 2 Noire Leakage 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  

Fostex TH900mk2 Limited Edition Microphone Frequency Response Sample

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Dan Clark Audio AEON 2 Noire 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  

Fostex TH900mk2 Limited Edition SpNR Sample

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Dan Clark Audio AEON 2 Noire SpNR 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 
 

Fostex TH900mk2 Limited Edition App Picture Sample

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Dan Clark Audio AEON 2 Noire 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
Connectivity

Wired Connection 
 

N/A
N/A

Cable Picture 
 

Fostex TH900mk2 Limited Edition Cable Picture Sample

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Dan Clark Audio AEON 2 Noire Cable Picture 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
Locked

Multi-Device Pairing 
 

Locked
Locked

Quick Pair (Android) 
 

Locked
Locked

Quick Pair (iOS) 
 

Locked
Locked

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
Locked

AAC Support 
 

Locked
Locked

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

Bordeaux Red
TH900mk2
SEE PRICE
B&H
Black
AEON 2 Noire
SEE PRICE
Amazon.com
Onyx Black
TH900mk2 Limited Edition
SEE PRICE
Amazon.com
Black
AEON 2 Noire
B&H
 
Black
AEON 2 Noire
BestBuy.com
 
Black
AEON 2 Noire
Walmart.com

Fostex TH900mk2 Limited Edition

Dan Clark Audio AEON 2 Noire

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  1. Comparison

Fostex TH900mk2 Limited Edition vs Dan Clark Audio AEON 2 Noire: Main Discussion

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