harman/kardon 700 Series (1980) - High Technology Components

These midi-sized slim-line Hi-Fi components were built around the Ultrawideband, negative feedback design amplifier technology (U.S. Patent#4,176,323) promoted by harman/kardon. With amplifiers designed by Dr. Matti Otala this system had the following components:

BASIC SET:

hk710 - analog tuner, phase locked

hk750 - integrated amplifier, 45W/ch

hk740 - stereo receiver, 30W/ch, analog tuner

HIGH TECHNOLOGY:

hk715 - digital tuner, 8 presets

hk725 - preamplifier, push-button tone control for cleanest sound

hk770 - stereo power amplifier, twin power supply, 65W/ch

hk775 - mono power amplifier, toroidal power transformer, 130W 

EXTRA COMPONENTS:

hk705 - cassette deck, 20-19,000Hz (Metal), Dolby HX headroom extension

hk720 - turntable, 2-speed, semi-automatic, belt drive

EQ700P - graphic equalizer, 2x10 band

These beautifully designed components all have the same size: 385x72.5x320mm.

Components from this system were also featured in the movie American Psycho.

These components were actually built by Shin-Shirasuna Electric Corporation of Japan who also sold these components under their brand name SILVER as the Series 5000 components.