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  1. Home
  2. Headphones
  3. Compare

Sennheiser HD 6XX vs Drop + Grell OAE1

Which Headphones Are Better?

    Top
    Main Differences
    Sound
      Sound ProfileFrequency Response ConsistencyRaw Frequency ResponseBass Profile: Target ComplianceMid-Range Profile: Target ComplianceTreble Profile: Target CompliancePeaks/DipsStereo MismatchCumulative Spectral DecayPRTFHarmonic DistortionElectrical AspectsVirtual SoundstageTest Settings
    Design
      StyleComfortControlsPortabilityCaseBuild QualityStabilityHeadshots 1Headshots 2TopIn The Box
    Isolation
      Noise Isolation - Full RangeNoise Isolation - Common ScenariosNoise Isolation - Voice HandlingANC Wind HandlingLeakage
    Microphone
      Microphone StyleRecording QualityNoise Handling
    Active Features
      BatteryApp Support
    Connectivity
      Wired ConnectionBluetooth ConnectionWireless Connection (Dongle)PC CompatibilityPlayStation CompatibilityXbox CompatibilityBase/Dock
    Comments

Products

Sennheiser HD 6XX
Drop + Grell OAE1

Tested using Methodology v2.2

Updated Apr 15, 2026 08:14 PM

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Amazon.com

Tested using Methodology v2.2

Updated Apr 15, 2026 07:56 PM

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Amazon.com
Sennheiser HD 6XX Picture

Track

Drop + Grell OAE1 Picture

Track

TypeOver-ear
Noise CancellingNo
EnclosureOpen-Back
Bass Amount
Underemphasized (-4 dB)
WirelessNo
Treble Amount
Balanced (-1 dB)
MicNo
Sound Signature
Flat
TypeOver-ear
Noise CancellingNo
EnclosureOpen-Back
Bass Amount
Emphasized (3 dB)
WirelessNo
Treble Amount
Slightly Underemphasized (-3 dB)
MicNo
Sound Signature
Warm

Our Verdict

Sennheiser HD 6XX

Drop + Grell OAE1

Both the Sennheiser HD 6XX and the Drop + Grell OAE1 are sold by Drop, with Axel Grell playing a part in the engineering of both pairs. The Sennheiser HD 6XX are a better fit for audiophiles seeking a more traditional sound. They have a flatter sound profile that rolls off the bass in favor of balanced mids and treble. They also deliver audio more consistently and have a more comfortable fit. The Drop + Grelll have a solid bass extension, which is surprising for open-backs, but also feature a recessed treble range. Their high clamping force makes them a poor fit for those with larger heads. 

GIFT THIS COMPARISON

0 

Variants

  • HD 6XX (Midnight Blue)
  • + Grell OAE1 (Black)

Review

See Sennheiser HD 6XX Review
See Drop + Grell OAE1 Review
2 
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Check Price

Midnight Blue
HD 6XX
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Black
+ Grell OAE1
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Amazon.com
Midnight Blue
HD 6XX
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B&H
Black
+ Grell OAE1
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B&H
Midnight Blue
HD 6XX
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Black
+ Grell OAE1
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BestBuy.com
Midnight Blue
HD 6XX
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Sennheiser
Black
+ Grell OAE1
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Drop
Midnight Blue
HD 6XX
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Walmart.com
Black
+ Grell OAE1
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Walmart.com

Main Differences for
Sports And Fitness

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Full Comparison

Sound

Sound Profile 
 

Sound Profile  

Sennheiser HD 6XX Sound Profile Sample

SAMPLE

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for pictures & test results

Drop + Grell OAE1 Sound Profile Sample

SAMPLE

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for pictures & test results

Normalization Frequency 
 

Lock Hz
Lock Hz

Bass Amount 
 

Locked
Locked

Treble Amount 
 

Locked
Locked

Sound Signature 
 

Locked
Locked

Frequency Response Consistency 
 

N/A
N/A

Consistency L  

Sennheiser HD 6XX Consistency L Sample

SAMPLE

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for pictures & test results

Drop + Grell OAE1 Consistency L Sample

SAMPLE

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for pictures & test results

Consistency R  

Sennheiser HD 6XX Consistency R Sample

SAMPLE

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Drop + Grell OAE1 Consistency R Sample

SAMPLE

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for pictures & test results

Std. Deviation 
 

Lock dB
Lock dB

Raw Frequency Response 
 

Raw FR L  

Sennheiser HD 6XX Raw FR L Sample

SAMPLE

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Drop + Grell OAE1 Raw FR L Sample

SAMPLE

JOIN NOW

for pictures & test results

Raw FR R  

Sennheiser HD 6XX Raw FR R Sample

SAMPLE

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Drop + Grell OAE1 Raw FR R Sample

SAMPLE

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for pictures & test results

Bass Profile: Target Compliance 
 

N/A
N/A

Bass Profile: Target Compliance  

Sennheiser HD 6XX Bass Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Bass Profile: Target Compliance Sample

SAMPLE

JOIN NOW

for pictures & test results

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

Mid-Range Profile: Target Compliance 
 

N/A
N/A

Mid-Range Profile: Target Compliance  

Sennheiser HD 6XX Mid-Range Profile: Target Compliance Sample

SAMPLE

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Drop + Grell OAE1 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

Treble Profile: Target Compliance 
 

N/A
N/A

Treble Profile: Target Compliance  

Sennheiser HD 6XX Treble Profile: Target Compliance Sample

SAMPLE

JOIN NOW

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Drop + Grell OAE1 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

Peaks/Dips 
 

N/A
N/A

Peaks/Dips Graph 
 

Sennheiser HD 6XX Peaks/Dips Graph Sample

SAMPLE

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Drop + Grell OAE1 Peaks/Dips Graph Sample

SAMPLE

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Peaks 
 

Lock dB
Lock dB

Dips 
 

Lock dB
Lock dB

Stereo Mismatch 
 

N/A
N/A

Frequency Response Mismatch  

Sennheiser HD 6XX Frequency Response Mismatch Sample

SAMPLE

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Drop + Grell OAE1 Frequency Response Mismatch Sample

SAMPLE

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Phase Response Mismatch  

Sennheiser HD 6XX Phase Response Mismatch Sample

SAMPLE

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Drop + Grell OAE1 Phase Response Mismatch Sample

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°

PRTF 
 

N/A
N/A

PRTF  

Sennheiser HD 6XX PRTF Sample

SAMPLE

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for pictures & test results

Drop + Grell OAE1 PRTF Sample

SAMPLE

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for pictures & test results

PRTF Accuracy (RMS Deviation) 
 

Lock dB
Lock dB

PRTF Size (Avg.) 
 

Lock dB
Lock dB

PRTF Distance 
 

Lock dB
Lock dB

Harmonic Distortion 
 

N/A
N/A

Harmonics Levels  

Sennheiser HD 6XX Harmonics Levels Sample

SAMPLE

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for pictures & test results

Drop + Grell OAE1 Harmonics Levels Sample

SAMPLE

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for pictures & test results

THD Ratio  

Sennheiser HD 6XX THD Ratio Sample

SAMPLE

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Drop + Grell OAE1 THD Ratio Sample

SAMPLE

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for pictures & test results

WHD @ 94 dB SPL 
 

Lock%
Lock%

WHD @ 104 dB SPL 
 

Lock%
Lock%

Electrical Aspects 
 

Impedance  

Sennheiser HD 6XX Impedance Sample

SAMPLE

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Drop + Grell OAE1 Impedance Sample

SAMPLE

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Sensitivity @1kHz-1V 
 

Lock dB SPL
Lock dB SPL

Bluetooth Max SPL 
 

N/A
N/A

Virtual Soundstage 
 

N/A
N/A

Virtual Soundstage  

Sennheiser HD 6XX Virtual Soundstage Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Virtual Soundstage Sample

SAMPLE

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for pictures & test results

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
Design

Style  

Design Picture 2  

Sennheiser HD 6XX Design Picture 2 Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Design Picture 2 Sample

SAMPLE

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for pictures & test results

Type  

Locked
Locked

Enclosure  

Locked
Locked

Wireless  

Locked
Locked

Transducer  

Locked
Locked

Comfort 
 

N/A
N/A

Comfort Picture  

Sennheiser HD 6XX Comfort Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Comfort Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Weight  

Lock lbs
Lock lbs

Clamping Force 
 

Lock lbs
Lock lbs

Controls 
 

N/A
N/A

Controls Picture  

Sennheiser HD 6XX Controls Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Controls Picture Sample

SAMPLE

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for pictures & test results

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  

Sennheiser HD 6XX Portability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Portability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

L  

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

W  

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

H  

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

Volume  

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

Transmitter Required  

Locked
Locked

Case 
 

N/A
N/A

Case Picture  

Sennheiser HD 6XX Case Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Case Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Type  

Locked
Locked

L  

N/A
N/A

W  

N/A
N/A

H  

N/A
N/A

Volume  

N/A
N/A

Build Quality 
 

N/A
N/A

Build Quality Picture  

Sennheiser HD 6XX Build Quality Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Build Quality Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Stability 
 

N/A
N/A

Stability Picture  

Sennheiser HD 6XX Stability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Stability Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Headshots 1  

Angled Picture  

Sennheiser HD 6XX Angled Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Angled Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Side Picture  

Sennheiser HD 6XX Side Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Side Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Headshots 2  

Front Picture  

Sennheiser HD 6XX Front Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Front Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Rear Picture  

Sennheiser HD 6XX Rear Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Rear Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Top  

Top Picture  

Sennheiser HD 6XX Top Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Top Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

In The Box  

In The Box Picture  

Sennheiser HD 6XX In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 In The Box Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Isolation

Noise Isolation - Full Range 
 

N/A
N/A

Noise Isolation - Full Range Graph  

Sennheiser HD 6XX Noise Isolation - Full Range Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Noise Isolation - Full Range Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

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

Noise Isolation - Common Scenarios 
 

N/A
N/A

Noise Isolation - Common Scenarios Graph  

Sennheiser HD 6XX Noise Isolation - Common Scenarios Graph Sample

SAMPLE

JOIN NOW

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Drop + Grell OAE1 Noise Isolation - Common Scenarios Graph Sample

SAMPLE

JOIN NOW

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Airplane Noise Attenuation 
 

Lock dB
Lock dB

Airplane Noise Isolation Audio 
 

JOIN NOW
JOIN NOW

Office Noise Attenuation 
 

Lock dB
Lock dB

Office Noise Isolation Audio 
 

JOIN NOW
JOIN NOW

Street Noise Attenuation 
 

Lock dB
Lock dB

Street Noise Isolation Audio 
 

JOIN NOW
JOIN NOW

Noise Isolation - Voice Handling 
 

Female Voice 1 
 

JOIN NOW
JOIN NOW

Male Voice 1 
 

JOIN NOW
JOIN NOW

Female Voice 2 
 

JOIN NOW
JOIN NOW

Male Voice 2 
 

JOIN NOW
JOIN NOW

ANC Wind Handling 
 

ANC Wind Handling Graph  

Sennheiser HD 6XX ANC Wind Handling Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 ANC Wind Handling Graph Sample

SAMPLE

JOIN NOW

for pictures & test results

ANC Wind Noise 
 

JOIN NOW
JOIN NOW

Leakage 
 

N/A
N/A

Leakage  

Sennheiser HD 6XX Leakage Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Leakage Sample

SAMPLE

JOIN NOW

for pictures & test results

Leakage Audio 
 

JOIN NOW
JOIN NOW

Overall Leakage @ 1ft 
 

Lock dB
Lock dB
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  

Sennheiser HD 6XX Microphone Frequency Response Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Microphone Frequency Response Sample

SAMPLE

JOIN NOW

for pictures & test results

Recorded Speech 
 

JOIN NOW
JOIN NOW

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  

Sennheiser HD 6XX SpNR Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 SpNR Sample

SAMPLE

JOIN NOW

for pictures & test results

SpNR 
 

N/A
N/A

Noise Gate 
 

Locked
Locked

Speech + Pink Noise Handling 
 

N/A
N/A

Speech + Pink Noise Audio Sample  

JOIN NOW
JOIN NOW

Speech + Subway Noise Handling 
 

N/A
N/A

Speech + Subway Noise Audio Sample  

JOIN NOW
JOIN NOW
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  

Sennheiser HD 6XX App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 App Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

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  

Sennheiser HD 6XX Cable Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

Drop + Grell OAE1 Cable Picture Sample

SAMPLE

JOIN NOW

for pictures & test results

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 
 

JOIN NOW
JOIN NOW

Recorded Latency Connection  

Locked
Locked

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 
 

JOIN NOW
JOIN NOW

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 
 

JOIN NOW
JOIN NOW

PC Compatibility 
 

Analog 
 

Locked
Locked

Wired USB 
 

Locked
Locked

Non-BT Wireless 
 

Locked
Locked

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

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

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

Midnight Blue
HD 6XX
SEARCH
Amazon.com
Black
+ Grell OAE1
SEARCH
Amazon.com
Midnight Blue
HD 6XX
SEARCH
B&H
Black
+ Grell OAE1
SEARCH
B&H
Midnight Blue
HD 6XX
SEARCH
BestBuy.com
Black
+ Grell OAE1
SEARCH
BestBuy.com
Midnight Blue
HD 6XX
SEARCH
Sennheiser
Black
+ Grell OAE1
SEARCH
Drop
Midnight Blue
HD 6XX
SEARCH
Walmart.com
Black
+ Grell OAE1
SEARCH
Walmart.com
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Sennheiser HD 6XX

Drop + Grell OAE1

Comments

  1. Comparison
 • Posted 9 months ago

Sennheiser HD 6XX vs Drop + Grell OAE1: Main Discussion

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