"The Harman Kardon 430 receiver was introduced in 1976 along with the 730. It followed in the footsteps of the Harman Kardon 630 and 930 which were released a few years earlier. The 430 puts out 25 watts per channel and has a simple yet elegant design that features some slight changes over the earlier 630 and 930. It retailed for about $325 which was a little pricey relative to other similar stereos.
The Harman Kardon 430 is definitely a classic and features unique H/K circuitry. “Twin Powered” means that each channel has an independent power supply which really enhances performance. So, even though it’s rated at only 25 wpc it can handle most anything you throw at it and still produce outstanding clarity and detail. Harman Kardon said in their ad for the HK 430:
As the 430 receiver vies for attention on your dealer’s shelf, it may seem almost diffident. Don’t believe it! For within its graceful contour lies such power as to meet truly demanding conditions – without compromise of sound quality.
The source of the 430’s energy is not the conventional single power supply. It has two discretely separate power supplies – one for each channel. Consequently, no matter how much energy is called for by dynamic music passages, performance of one channel is not affected by the other."
Specifications
Tuning range: AM/FM
Power output: 25 watts per channel into 8Ω (stereo)
Frequency response: 20Hz to 20kHz
Total harmonic distortion: 0.3%
Damping factor: 40
Signal to noise ratio: 65dB (line)
Speaker load impedance: 4Ω to 16Ω
Dimensions: 432 x 368 x 140mm
Weight: 10.9kg
sn: 67367
production Code No. 7255
This unit is equipped with LED dial and meter lights.