Introduction

KRK Systems recently proved that they can produce a very interesting set of mid-end headphones right here: KRK Systems KNS 8400 review. Today we will be taking a look at yet another set of reasonably priced headphones from KRK Systems namely the KNS 6400s which sell for $100. Compared to the KNS 8400 the design is relatively unchanged. The KNS 6400 features cheaper ear pads and headband, but the great mechanical design we saw on the KNS 8400 is carried over. The change in pad material might not seem like a big deal, but it is especially important with closed back headphones that rely on the seal to produce the intended sound quality.

Specifications

• Configuration: Closed back, circumaural
• System type: Monitor Headphones
• Cable: 2.5 m, (8.2 ft.), 99.99% OFC detachable
• Ear Cushion type: Acoustic cellular foam [KNS-6400]
• Headpad Finish: Leatherette [KNS-6400]
• Nominal Headband Pressure: 4 N (based on average head size)
• Ambient Noise Isolation: up to 26 dBA [KNS-6400]
• Transducer: 40mm, neodymium
• Power Handling Full Range: 1000mW
• Nominal Impedance: 36 ohms
• Frequency Response: 10Hz to 22KHz
• Sensitivity (1mW): 95 dB SPL
• Calculated Max SPL: 122 dB SPL
• Connector: Gold-plated stereo 1/8" (3.5 mm)
• Volume Control: N/A
• Finish: Black impact resistant plastic
• Dimensions: 3.7" (94mm) x 10.5" (267mm) x 9.6" (244mm)
• Weight: 0.46 Lbs. (0.21Kg)