Harman Kardon 930 (1972–1976)

A top-of-the-line solid-state stereo receiver with a dual power supply for enhanced channel separation and performance.

Overview

The Harman Kardon 930 is a solid-state AM/FM/Stereo FM receiver produced from 1972 to 1976. Marketed as a high-end model in Harman Kardon’s lineup, it features a distinctive "Twin Power" design with independent regulated power supplies for each channel. This receiver includes high-quality MM phono inputs and was noted for its robust build and audiophile-grade sound. It has a classic aesthetic with a blackout dial face, green dial lighting, and a brushed aluminum front panel.

Specifications

Product type	AM/FM/Stereo FM Solid State Receiver
Power output	45 or 48 watts per channel into 8Ω (stereo)
Frequency response	below 4Hz to above 70kHz +/-
Dimensions	432 x 121 x 350 mm or 15.3" x 4.5" x 13" (possible typo in other source: 17in W by 1334in D by 44in H)
Weight	13.2 kg (21 lbs)
Tuning range	FM, MW

Design

The Harman Kardon 930 uses a unique dual power supply system, with separate transformers and regulator circuits for each channel, enhancing dynamic range and reducing crosstalk. Each channel has its own regulated voltages to support full RMS output. The unit features a blackout dial face with classic green lighting and a brushed aluminum finish. It includes high-quality MM phono inputs, benefiting from the isolated power design.

Context

The Harman Kardon 930 was positioned as a top-of-the-line receiver in the early 1970s, representing one of the brand’s most advanced designs of the era. Its "Twin Power" architecture placed it at the forefront of stereo receiver innovation, offering performance aimed at discerning audiophiles.

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