Superlux HD 681 EVO vs Razer Kraken USB Side-by-Side Headphones Comparison

Tested using Methodology v1.3.1

Updated Aug 07, 2021 12:23 AM

TypeOver-ear

EnclosureSemi-Open

Noise CancellingNo

WirelessNo

TransducerDynamic

MicNo

TypeOver-ear

EnclosureClosed-Back

Noise CancellingNo

WirelessNo

TransducerDynamic

MicYes

Variants

HD 681 EVO (Black)
HD 681 EVO (White)

Kraken USB

Review

See Superlux HD 681 EVO review

See Razer Kraken USB review

Our Verdict

Superlux HD 681 EVO

Razer Kraken USB

Full comparison details regarding individual product score sets can be found in the section below

Check Price

Black

HD 681 EVO

Standard

Kraken USB

White

HD 681 EVO

Standard

Kraken USB

Standard

Kraken USB

Standard

Kraken USB

Walmart.com

Standard

Kraken USB

Standard

Kraken USB

Standard

Kraken USB

Standard

Kraken USB

Main Differences for

Threshold

0.10

No major differences between these headphones for this usage. See full list of tests below.

Full Comparison

Mixed Usage

5.7

5.1

Neutral Sound

7.8

5.6

Commute/Travel

5.0

4.7

Sports/Fitness

5.5

4.9

Office

5.5

5.1

Wireless Gaming

4.6

5.0

Wired Gaming

6.4

6.7

Phone Call

1.9

7.0

Design

Style

Design Picture 2

Type

Over-ear

Enclosure

Semi-Open

Closed-Back

Wireless

Transducer

Dynamic

Show text

Comfort

7.5

6.0

Comfort Picture

Weight

0.61 lbs

0.5 lbs

Clamping Force

1.2 lbs

Show text

Controls

0.0

Controls Picture

OS Compatibility

Not OS specific

Ease Of Use

N/A

Feedback

N/A

Call/Music Control

Volume Control

Microphone Control

N/A

Channel Mixing

N/A

Noise Cancelling Control

N/A

Talk-Through

N/A

Additional Buttons

N/A

Breathability

6.7

6.4

Breathability After Picture

Avg.Temp.Difference

5.2 °C

6.1 °C

Portability

5.5

5.2

Portability Picture

L

7.5"

7.6"

W

7.2"

7.1"

H

3.5"

4.5"

Volume

189 in³

243 in³

Transmitter Required

N/A

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Case

5.5

0.0

Case Picture

Type

Pouch

No case

L

N/A

W

N/A

H

N/A

Volume

N/A

Show text

Build Quality

6.0

Build Quality Picture

Show text

Stability

6.5

6.0

Stability Picture

Show text

Headshots 1

Angled Picture

Side Picture

Headshots 2

Front Picture

Rear Picture

Top

Top Picture

In The Box

In the box Picture

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Sound

Sound Profile

Frequency Response

Bass Amount

1.64 dB

-1.27 dB

Treble Amount

0.42 dB

-5.45 dB

Frequency Response Consistency

7.3

6.4

Consistency L

Consistency R

Avg. Std. Deviation

0.54 dB

0.77 dB

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Raw Frequency Response

Raw FR L

Raw FR R

Bass Accuracy

8.5

6.4

Bass

Std. Err.

2.2 dB

4.95 dB

Low-Frequency Extension

10 Hz

34.13 Hz

Low-Bass

2.94 dB

-3.04 dB

Mid-Bass

2.55 dB

5.99 dB

High-Bass

0.35 dB

5.95 dB

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Mid Accuracy

8.4

5.9

Mid

Std. Err.

2.19 dB

5.51 dB

Low-Mid

-1.76 dB

7.18 dB

Mid-Mid

-2.3 dB

4.31 dB

High-Mid

-1.33 dB

-2.76 dB

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Treble Accuracy

7.8

3.6

Treble

Std. Err.

3.66 dB

7.37 dB

Low-Treble

-1.71 dB

-9.19 dB

Mid-Treble

0.5 dB

0.48 dB

High-Treble

-0.45 dB

-4.29 dB

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Peaks/Dips

7.1

5.5

Peaks/Dips Graph

Peaks

1.91 dB

3.16 dB

Dips

1.5 dB

2.48 dB

Imaging

8.9

7.1

Group Delay

Phase Response

Weighted Group Delay

0.27

0.52

Weighted Amplitude Mismatch

0.35

0.62

Weighted Frequency Mismatch

1.5

2.69

Weighted Phase Mismatch

3.58

24.41

Soundstage

6.7

5.0

PRTF

PRTF Accuracy (Std. Dev.)

4.2 dB

5.72 dB

PRTF Size (Avg.)

4.53 dB

2.97 dB

PRTF Distance

8.46 dB

8.8 dB

Openness

7.0

5.9

Acoustic Space Excitation

7.5

3.4

Weighted Harmonic Distortion

7.6

6.1

Weighted Harmonic Distortion

WHD @ 90

0.166

1.084

WHD @ 100

0.198

0.495

Isolation

Noise Isolation

3.2

4.0

Noise Isolation

Isolation Audio

Overall Attenuation

-8.72 dB

-10.06 dB

Noise Cancelling

Bass

-0.18 dB

0.6 dB

Mid

-1.93 dB

-5.3 dB

Treble

-23.91 dB

-25.84 dB

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Leakage

3.5

7.3

Leakage

Leakage Audio

Overall Leakage @ 1ft

56.05 dB

37.87 dB

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Microphone

Microphone Style

Integrated

N/A

In-line

N/A

Boom

N/A

Yes

Detachable Boom

N/A

Mic

Yes

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Recording Quality

0.0

8.4

Microphone Frequency Response

Recorded Speech

N/A

LFE

N/A

20.59 Hz

FR Std. Dev.

N/A

1.88 dB

HFE

N/A

5,664.61 Hz

Weighted THD

N/A

0.149

Gain

N/A

16.93 dB

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Noise Handling

0.0

8.9

SpNR

Speech + Pink Noise

N/A

Speech + Subway Noise

N/A

SpNR

N/A

44.34 dB

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Active Features

Battery

0.0

Battery Type

N/A

Continuous Battery Life

N/A

Additional Charges

N/A

Total Battery Life

N/A

Charge Time

N/A

Power Saving Feature

N/A

Audio While Charging

N/A

Passive Playback

N/A

Charging Port

N/A

App Support

0.0

8.5

App Picture

App Name

N/A

Razer Synapse

iOS

N/A

Android

N/A

macOS

N/A

Yes

Windows

N/A

Yes

Equalizer

N/A

Graphic + Presets

ANC Control

N/A

Mic Control

N/A

Room effects

N/A

Yes

Playback Control

N/A

Button Mapping

N/A

Surround Sound

N/A

Dolby 7.1

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Connectivity

Bluetooth

0.0

Bluetooth Version

N/A

Multi-Device Pairing

N/A

NFC Pairing

N/A

Line of Sight Range

N/A

Default Latency

N/A

aptX Latency

N/A

aptX(LL) Latency

N/A

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Non-Bluetooth Wireless

0.0

Non-BT Line of Sight Range

N/A

Non-BT Latency

N/A

Wired

9.0

8.9

Cable Picture

Analog Audio

Yes

USB Audio

Yes

Detachable

Length

8.4 ft

6.3 ft

Connection

1/8" TRS

USB

Wired Latency

0 ms

3 ms

PC / PS4 Compatibility

PC / PS4 Analog

Audio Only

PC / PS4 Wired USB

Audio + Microphone

PC / PS4 Non-BT Wireless

Xbox One Compatibility

Xbox One Analog

Audio Only

Xbox One Wired USB

Xbox One Wireless

Base/Dock

0.0

Type

N/A

USB Input

N/A

Line In

N/A

Line Out

N/A

Optical Input

N/A

RCA Input

N/A

Dock Charging

N/A

Power Supply

N/A

Check Price

Black

HD 681 EVO

Standard

Kraken USB

White

HD 681 EVO

Standard

Kraken USB

Standard

Kraken USB

Standard

Kraken USB

Walmart.com

Standard

Kraken USB

Standard

Kraken USB

Standard

Kraken USB

Standard

Kraken USB