Type semi-open, dynamic headphones
Sensitivity 91 dB/mW, 104 dB/V
Frequency range 15 to 25,000 Hz
Rated impedance 55 ohms
Max. input power 200 mW
Earpads leatherette and velvet
Cable 3 m single-sided and 5 m coiled cable (99,9% oxygen-free); plug-in cable on headphones (mini-XLR connector)
Connector gold plated stereo mini jack
Adapter gold plated 1/8" to 1/4" screw-on adapter
Net weight (without cable) 240 g (8.5 oz.)
Shipping weight 550 g (19.4 oz.)
Patent(s) Varimotion – multiple-thickness diaphragm for dynamic transducer (Patent no. AT 403.751, US 6,185,809, EP 814.637 (DE, DK, FI, FR, GB, IT, NL), JP 3.927.651); Acoustics slot resistor for dynamic transducer (Patent no. AT 408.706, US 6,639,991, ZL 01116806)