Harman Kardon A 402
The Harman Kardon A 402 is a stereo receiver that shows up in period equipment databases, but the record on it is thin. A handful of confirmed specifications is about all there is. Its design, production run and market positioning are mostly undocumented.
Here is what the record shows. The A 402 was rated at 40 watts per channel into 8 ohms, with a frequency response of 20Hz to 20kHz and total harmonic distortion listed at 0.1%. The damping factor was specified at 30, and the signal-to-noise ratio at 60dB (IHF). Input sensitivity was rated at 150mV for phono/mic. The unit measured 440 x 120 x 300mm. No weight, original price or production years have been found in the available sources.
Nothing else is recorded. No circuit topology, component details or construction notes survive in the accessible documentation, and no period reviews or owner impressions have surfaced. High Fidelity (January 1981, p.22) ran a reader-question column in the same era, but it does not mention the A 402 specifically. The A 402 appears to have been a straightforward, mid-power receiver from Harman Kardon's lineup.
Known specifications:
- Type: Stereo receiver
- Power output: 40W per channel into 8Ω
- Frequency response: 20Hz to 20kHz
- THD: 0.1%
- Damping factor: 30
- Input sensitivity: 150mV (phono/mic)
- S/N ratio: 60dB (IHF)
- Dimensions: 440 x 120 x 300mm
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