KRK KNS 8400 Professional Closed Back Dynamic Headphones

Full Description

Detailed sound you can trust

The KNS 8400 is built for accuracy, offering a frequency response tailored for honest listening. The upper midrange is more pronounced than in many other closed-back headphones, helping bring out tonal issues and unbalanced mix elements that can slip past softer-sounding alternatives. If you’re working on a project that demands close attention to detail, this mid-forward clarity gives you the reference you need to get it right.

It mirrors the feel of listening to studio monitors, making it easier to translate your mixes beyond the headphones.With a maximum SPL of 122 dB, it delivers plenty of volume headroom without introducing distortion or masking critical details.

Comfort made for longer sessions

The ear and headband cushions are made from memory foam, shaping themselves to your head for a secure yet soft fit. This keeps pressure to a minimum while maintaining a solid seal, which is especially important when wearing headphones for hours at a time. The lightweight plastic frame further reduces fatigue, helping you stay focused through edits, overdubs or mix passes without needing breaks due to discomfort.

Even though the fit is snug, the breathable materials stop them from feeling hot or overly tight. This makes them ideal for longer tracking or monitoring sessions where physical comfort can be just as important as audio quality.

Isolation that keeps your takes clean

The closed-back, circumaural design provides up to 26 dBA of passive isolation. This helps keep external sounds out and your headphone audio from leaking into live microphones during recording. It makes the KNS 8400 a solid option for vocal sessions, live instrument tracking or any environment where sound spill can be an issue. It’s not complete silence, but it’s enough to keep the session clean and your focus sharp.

Built to last with replaceable parts

Studio headphones often get daily use, and the KNS 8400 is ready for it. The impact-resistant plastic construction keeps the weight low while standing up to regular handling. When parts do wear out, the detachable cable and replaceable cushions make repairs simple. That means you won’t need to replace the whole unit if one part breaks or becomes uncomfortable over time. This makes them a smart investment for anyone looking for a durable, long-life pair of studio headphones that can adapt to your needs and stay reliable over time.

Reviews

"I've just fallen in love with a pair of KRK KNS 8400s. The detail in the sound is amazing. It really felt like I was hearing it in the studio." - Audio Media Magazine

"I found the KNS-8400 to be good for tracking, offering minimal fatigue on the top end, slightly scooped out low mids (around 200 to 400 Hz) and just enough bottom." - Pro Audio Review

Features

• Replaceable cable, head, and ear cushions to ensure long product life
• Transparent reproduction of high-frequencies, resulting in highly accurate imaging
• Large dynamic range with extremely consistent low-distortion detail and clarity
• High-efficiency Neodymium 40mm driver
• A new standard in lightweight comfortable headphones, for those long sessions
• Born from KRK's 25 years of experience in the development of high end pro studio monitors
• Highly durable 2.5M single-sided, oxygen-free copper straight cable

Specifications

• System / Design: Dynamic
• Operating System: Closed-back
• Head Coupling: Circumaural (Isolating)
• Voice Coil: Copper-clad aluminum wire
• Driver Type: Low weight neodymium
• Driver Diameter: 40mm
• Sensitivity/Efficiency: 97 dB SPL @1mW
• Frequency Response: 5Hz-23 kHz
• Total Harmonic Distortion:
• Rated Impedance: 36 ohms
• Ambient Noise Isolation: Up to 30 dBA
• Long Term Maximum Power Handling: 1000mW (500mW per side as per IEC 60268-7)
• Earcup Rotation: 90 degrees
• Nominal Headband Pressure: 4 N (based on average head size)
• Headband Type: Adjustable / Sprung steel skeleton
• Ear Cushion type: Acoustic memory foam
• Headpad Finish: Premium leatherette
• Headphone Finish: Black impact resistant plastic
• Cable: 2.5 m, (8.2 ft.), 99,99 OFC detachable
• Connector: Gold-plated stereo 1/8 (3.5 mm)
• Cable Connection: Strain relief managed
• Adaptor: Screw-on 1/4" (6.3 mm)
• Weight without Cable: 232 g (0.51 lbs)
• Dimensions: 245mm x 268mm x 94mm / 9.6" x 10.5" x 3.7"