The HD661 is a closed-back, circumaural headphone which is excellent for live sound monitoring application because of its sound profile of depth of sound field. It's also suitable for studio and broadcast. Although suitable for a very wide range of applications, the exceptional attenuation of external noise of the HD 661 makes it particularly useful for use in a high noise environment.
The balanced, high definition and clear sound of the HD661 assures that a professional sound engineer can have full confidence when recording or monitoring. Its patented sturdy headband structure provides long-lasting durability even in challenging conditions, yet its light weight and optimized mechanical pressure provides long-term wearing comfort.
Type: Dynamic, closed-back Driver: Ø40 mm, neodymium Sensitivity: 102 dB SPL (1 mW) FrequencyResponse: 10-20,000 Hz Max. Input Power: 200 mW Rated Impedance: 68 Ω (Copper-coated aluminum wire) Ear Pads: Leatherette Cables: 1-meter (3.3 ft.) & 3-meter (9.8ft.) straight ,single-sided;plugin cable on headphones (mini stereo connector) Connector: Gold plated stereo mini plug Headphone Caliper Pressure: Approx. 4.5 N Net Weight: (without cable) 190 g (6.7 oz)