PRO-60 Stereo Headphones (330-0999) Specifications Faxback Doc. # 16077 Frequency Response:............................................15-35,000 Hz Impedance:.................................90 ohm; designed to operate with systems having 4, 8 or 16 ohm output Power Handling Capability:.......................Maximum continuous program material should not exceed 5 volts Distortion:..........................THD less than 0.5% at 1kHz, 100 dB-SPL Weight:..............................................7.7oz (220g) less cord (ALL-07/21/95)