Yep, we may get a tiny thank-you (read: commission) when you buy through links on Soundfindr — not enough for a yacht, but enough to keep the lights (and servers) on. Learn more
Thinking of upgrading your setup? The KRK KNS 8400 brings 152 specs & features to the table — including killer features like driver size, sensitivity, connection type & passive noise isolation.
A fast snapshot of the KRK KNS 8400, covering its standout specification and what you can expect right out of the box.
KRK KNS 8400
KRK KNS 8400 is a studio-focused headphone designed for accurate and detailed sound reproduction. It features a closed-back, over-ear design that helps reduce external noise while maintaining clarity across frequencies. Built for long listening sessions, it combines comfort with a balanced audio profile suitable for both professional and casual use.
Quick Specs Breakdown
The key specs that actually matter—no fluff, no guesswork
Here’s a streamlined view of the KRK KNS 8400 key specifications. Compare critical features at a glance before exploring the full specs and hands-on insights below.
Audio Performance
Driver Size
What is the driver size?
40 mm
Sensitivity
What is the sensitivity?
97 dB
High Frequency Response
What is the highest frequency response?
23000 Hz
Impedance
What is the impedance?
36 ohm
Connectivity & Compatibility
Connection Type
What is the connection type?
Wired
Connector Plug Type
What is the connector plug type?
3.5mm
Noise Control
Passive Noise Isolation
Do the headphones provide passive noise isolation?
Yes
Accessories
Carry Case
Is a carry case included?
Yes
Extra Earpads
Are extra earpads included?
Yes
Carrying Case Type
What type of carrying case is included?
Soft Case
User Manual
Is a user manual included?
Yes
General Information
Product Name
What is the product name?
KRK KNS 8400
Intended Use
What is the intended use?
Music,Studio,Travel
Headphone Type
What type of headphones are these?
On Ear
Fit Style
What is the fit style?
Closed Back
Specifications & Facts 152
Specs measured. Drama avoided.
Is the KRK KNS 8400 worth it? Compare its 152 specs — including the well-loved driver size, sensitivity, connection type & passive noise isolation — plus price and performance vs other headphones.
When it comes to Impedance, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 3.8 ohm measurement.
Don’t keep it to yourself — be the first to react and review the Impedance on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Sound Pressure Level
What is the sound pressure level?
124 dB 0Votes
98.72 dB (Average)
KRK KNS 8400
A sound pressure level of 124 dB indicates these headphones can produce high volumes with substantial loudness and clarity.
Acoustic pressure output.
When it comes to Sound Pressure Level, KRK KNS 8400 ◉ is better than Headphone in this range ◉ , delivering higher 25.3 dB measurement.
Don’t keep it to yourself — be the first to react and review the Sound Pressure Level on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Acoustic Design
What is the acoustic design?
0 KRK KNS 8400 0 Votes Closed Back
27 Headphones in this range Closed Back
KRK KNS 8400
These headphones feature a closed back acoustic design, which provides better sound isolation and minimizes sound leakage. This design is ideal for studio or noisy environments where blocking outside noise is important.
Headphone enclosure type.
When it comes to Acoustic Design, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 27 score measurement.
Don’t keep it to yourself — be the first to react and review the Acoustic Design on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Total Harmonic Distortion
What is the THD?
0.1 % 0Votes
1.8 % (Average)
KRK KNS 8400
Total harmonic distortion is very low at 0.1%, indicating clean and accurate sound reproduction without unwanted audio artifacts.
Distortion in audio output.
When it comes to Total Harmonic Distortion, KRK KNS 8400 ◉ is better than Headphone in this range ◉ , delivering higher 1.7 % measurement.
Don’t keep it to yourself — be the first to react and review the Total Harmonic Distortion on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Impulse Response Speed
What is the impulse response speed?
0 KRK KNS 8400 0 Votes Fast
23 Headphones in this range Average
KRK KNS 8400
The impulse response speed is fast, enabling quick reaction to rapid sound changes, which is beneficial for precise audio reproduction.
Speed at which drivers respond to signal changes.
When it comes to Impulse Response Speed, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 23 score measurement.
Don’t keep it to yourself — be the first to react and review the Impulse Response Speed on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Stereo Imaging Quality
What is the stereo imaging quality?
0 KRK KNS 8400 0 Votes Good
60 Headphones in this range Good
KRK KNS 8400
Stereo imaging quality is good, ensuring that the headphones can deliver a clear and immersive spatial audio experience.
Ability to position sound accurately in stereo field.
When it comes to Stereo Imaging Quality, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 60 score measurement.
Don’t keep it to yourself — be the first to react and review the Stereo Imaging Quality on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Soundstage Width
What is the soundstage width?
0 KRK KNS 8400 0 Votes Moderate
49 Headphones in this range Moderate
KRK KNS 8400
The soundstage width is moderate, meaning the headphones offer a decent sense of space and instrument separation, suitable for many audio uses.
Lateral spread of perceived audio.
When it comes to Soundstage Width, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 49 score measurement.
Don’t keep it to yourself — be the first to react and review the Soundstage Width on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Driver Type
What is the driver type?
0 KRK KNS 8400 0 Votes Dynamic
51 Headphones in this range Dynamic
Type of driver technology used for sound production.
When it comes to Driver Type, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 51 score measurement.
Don’t keep it to yourself — be the first to react and review the Driver Type on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Low Frequency Response
What is the lowest frequency response?
5 Hz 0Votes
18.19 Hz (Average)
Lowest audible frequency reproduced.
When it comes to Low Frequency Response, KRK KNS 8400 ◉ is better than Headphone in this range ◉ , delivering higher 13.2 Hz measurement.
Don’t keep it to yourself — be the first to react and review the Low Frequency Response on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Maximum Input Power
What is the maximum input power?
1,000 mW 0Votes
207.31 mW (Average)
Maximum power headphones can handle.
When it comes to Maximum Input Power, KRK KNS 8400 ◉ is better than Headphone in this range ◉ , delivering higher 792.7 mW measurement.
Don’t keep it to yourself — be the first to react and review the Maximum Input Power on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Dynamic Range
What is the dynamic range?
124 dB 0Votes
91.31 dB (Average)
Range between softest and loudest sounds.
When it comes to Dynamic Range, KRK KNS 8400 ◉ is better than Headphone in this range ◉ , delivering higher 32.7 dB measurement.
Don’t keep it to yourself — be the first to react and review the Dynamic Range on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Phase Coherence
What is the phase coherence?
0 KRK KNS 8400 0 Votes Good
45 Headphones in this range Good
Alignment of frequency components in phase.
When it comes to Phase Coherence, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 45 score measurement.
Don’t keep it to yourself — be the first to react and review the Phase Coherence on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Crosstalk
What is the crosstalk value?
-60 dB 0Votes
2.67 dB (Average)
Amount of signal leakage between channels.
When it comes to Crosstalk, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 62.7 dB measurement.
Don’t keep it to yourself — be the first to react and review the Crosstalk on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Sound Signature
What is the sound signature?
0 KRK KNS 8400 0 Votes Neutral
48 Headphones in this range Neutral
Tonal balance of headphone output.
When it comes to Sound Signature, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 48 score measurement.
Don’t keep it to yourself — be the first to react and review the Sound Signature on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Soundstage Depth
What is the soundstage depth?
0 KRK KNS 8400 0 Votes Moderate
48 Headphones in this range Moderate
Front-to-back perception of audio field.
When it comes to Soundstage Depth, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 48 score measurement.
Don’t keep it to yourself — be the first to react and review the Soundstage Depth on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Bass Enhancement Technology
What bass enhancement technology is used?
0 KRK KNS 8400 0 Votes None
21 Headphones in this range None
Technology that enhances bass response.
When it comes to Bass Enhancement Technology, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 21 score measurement.
Don’t keep it to yourself — be the first to react and review the Bass Enhancement Technology on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Treble Enhancement Technology
What treble enhancement technology is used?
0 KRK KNS 8400 0 Votes None
17 Headphones in this range None
Technology used to enhance treble clarity.
When it comes to Treble Enhancement Technology, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 17 score measurement.
Don’t keep it to yourself — be the first to react and review the Treble Enhancement Technology on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Surround Sound
Do the headphones support surround sound?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Indicates if headphones support surround audio.
Don’t keep it to yourself — be the first to react and review the Surround Sound on KRK KNS 8400 ◉ and help others decide!
Do the headphones provide passive noise isolation?
Yes 0Votes KRK KNS 8400
Yes Headphones in this range
KRK KNS 8400
Passive noise isolation helps block out ambient sounds effectively without requiring power. It improves listening focus by physically sealing off external noise.
Physical sealing and padding to block noise.
When it comes to Passive Noise Isolation, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 74 score measurement.
Don’t keep it to yourself — be the first to react and review the Passive Noise Isolation on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Active Noise Cancellation
Do the headphones support active noise cancellation?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Indicates if the headphones have ANC technology.
Don’t keep it to yourself — be the first to react and review the Active Noise Cancellation on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 ANC Level Adjustment
Can ANC levels be adjusted?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Whether ANC intensity can be adjusted.
Don’t keep it to yourself — be the first to react and review the ANC Level Adjustment on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Passive Seal Quality
What is the passive seal quality?
0 KRK KNS 8400 0 Votes Good
47 Headphones in this range Good
Quality of physical seal for blocking noise.
When it comes to Passive Seal Quality, KRK KNS 8400 ◉ is worse than Headphone in this range ◉ , delivering equal 47 score measurement.
Don’t keep it to yourself — be the first to react and review the Passive Seal Quality on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Transparency Mode Level Adjustment
Can transparency levels be adjusted?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Allows adjustment of transparency mode strength.
Don’t keep it to yourself — be the first to react and review the Transparency Mode Level Adjustment on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Adaptive Sound Control
Do the headphones feature adaptive sound control?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Automatically adjusts noise control based on environment.
Don’t keep it to yourself — be the first to react and review the Adaptive Sound Control on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Automatic ANC Adjustment
Does ANC adjust automatically?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
ANC adjusts automatically without user input.
Don’t keep it to yourself — be the first to react and review the Automatic ANC Adjustment on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Ambient Noise Detection
Do the headphones detect ambient noise?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Sensors detect surrounding noise levels.
Don’t keep it to yourself — be the first to react and review the Ambient Noise Detection on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Wind Noise Reduction For ANC
Does ANC reduce wind noise?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Reduces wind interference in ANC mode.
Don’t keep it to yourself — be the first to react and review the Wind Noise Reduction For ANC on KRK KNS 8400 ◉ and help others decide!
Battery & Power 6
KRK KNS 8400 Replaceable Battery
Is the battery replaceable?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Indicates if the battery can be replaced.
Don’t keep it to yourself — be the first to react and review the Replaceable Battery on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Quick Charge Support
Does it support quick charging?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Whether quick charge is supported.
Don’t keep it to yourself — be the first to react and review the Quick Charge Support on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Wireless Charging Support
Does it support wireless charging?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Supports wireless charging.
Don’t keep it to yourself — be the first to react and review the Wireless Charging Support on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Overcharge Protection
Does it have overcharge protection?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Protects battery from overcharging.
Don’t keep it to yourself — be the first to react and review the Overcharge Protection on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Power Saving Mode
Does it have a power saving mode?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Extends battery life by reducing power use.
Don’t keep it to yourself — be the first to react and review the Power Saving Mode on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Battery Indicator
Does it have a battery indicator?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Shows battery level on device.
Don’t keep it to yourself — be the first to react and review the Battery Indicator on KRK KNS 8400 ◉ and help others decide!
Smart & Extra Features 16
KRK KNS 8400 AI Upscaling Audio
Does it feature AI audio upscaling?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Enhances lower-quality audio using AI algorithms.
Don’t keep it to yourself — be the first to react and review the AI Upscaling Audio on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Head Tracking For Spatial Audio
Does it support head tracking for spatial audio?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Supports dynamic spatial audio through head tracking.
Don’t keep it to yourself — be the first to react and review the Head Tracking For Spatial Audio on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Dolby Atmos Support
Is Dolby Atmos supported?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Indicates Dolby Atmos surround compatibility.
Don’t keep it to yourself — be the first to react and review the Dolby Atmos Support on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Hi Res Audio Certification
Is it Hi-Res certified?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Shows if headphones meet Hi-Res audio standards.
Don’t keep it to yourself — be the first to react and review the Hi Res Audio Certification on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Custom Sound Profiles
Can you create custom sound profiles?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Allows personalized sound settings.
Don’t keep it to yourself — be the first to react and review the Custom Sound Profiles on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Learning EQ Adaptation
Does it adapt EQ through learning?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
AI adjusts EQ over time based on listening habits.
Don’t keep it to yourself — be the first to react and review the Learning EQ Adaptation on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Hearing Protection Mode
Does it include hearing protection mode?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Limits volume peaks to protect hearing.
Don’t keep it to yourself — be the first to react and review the Hearing Protection Mode on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Sleep Tracking
Does it track sleep?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Tracks sleep patterns while wearing headphones.
Don’t keep it to yourself — be the first to react and review the Sleep Tracking on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Sleep Mode Timer
Does it have a sleep mode timer?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Timer to automatically power off during sleep.
Don’t keep it to yourself — be the first to react and review the Sleep Mode Timer on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Multi Device Sync
Does it support multi-device sync?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Connects to multiple devices simultaneously.
Don’t keep it to yourself — be the first to react and review the Multi Device Sync on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Auto Device Switching
Does it support auto device switching?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Seamlessly switches between connected devices.
Don’t keep it to yourself — be the first to react and review the Auto Device Switching on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Find My Device Support
Does it support Find My Device?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Supports location tracking for lost headphones.
Don’t keep it to yourself — be the first to react and review the Find My Device Support on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Firmware Update Support
Can the firmware be updated?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Indicates ability to update software for improvements.
Don’t keep it to yourself — be the first to react and review the Firmware Update Support on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Voice Recognition Personalization
Does it support voice recognition personalization?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Learns and adapts to user’s voice commands.
Don’t keep it to yourself — be the first to react and review the Voice Recognition Personalization on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Gaming Mode Optimization
Is there a gaming optimization mode?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Special low-latency mode for gaming.
Don’t keep it to yourself — be the first to react and review the Gaming Mode Optimization on KRK KNS 8400 ◉ and help others decide!
KRK KNS 8400 Integrated Storage For Cable
Does it have cable storage?
No 0Votes KRK KNS 8400
Headphone in this range Who knows? (Help us out by suggesting one!)
Provides onboard storage for detachable cables.
Don’t keep it to yourself — be the first to react and review the Integrated Storage For Cable on KRK KNS 8400 ◉ and help others decide!
Supermod 
0 Cartling 
