HP 1DB Headphones
These special four-driver headphones are designed for the personal enjoyment of Dolby Surround effects. High-energy magnets give clean powerful sound. These headphones are simply connected, the PM683 Master Amplifier for example has dual connections to feed these headphones from its built-in Dolby Surround processor.
Specifications
Type: Dynamic headphone, open air-type
Trasducers:
Front : 44 mm Dynamic type
Rear : 30 mm Dynamic type
Impedance: 100 ohm
Frequency response: 20 - 20,000 Hz
Max. power: 100 mW per unit
Cable: 4,2 m
Weight: 270 g with cable