Kenwood KR 730 (1978-1979)
Specifications
| Feature | Specification |
| Year of Production | 1978-1979 |
| Power Specifications | reportedly 65W per channel (8Ω, 20Hz-20kHz, 0.08% THD), 75W per channel (4Ω) |
| Impedance | 4-16Ω |
| Sensitivity | Unknown |
| Key Features | Dual power supply, FET front end, DC power amplifier circuitry, 4-gang tuning capacitor, loudness control, tape monitor, phono input with MM/MC capability, wood cabinet option |
Historical Significance
The Kenwood KR 730 wasn’t just another receiver—it was the crown jewel of the 'Seven' series, a statement piece from Kenwood’s golden era of silver-faced audio. Built like a tank and engineered with obsessive precision, it embodied the high end of late-’70s analog design. This was Kenwood at their most ambitious: dual power supplies, DC-coupled amplification, and a FET front end that delivered near-luxury performance. For audiophiles who demanded both power and finesse, the KR 730 was the definitive choice.
Sound Signature
Expect clarity that cuts through the mix—detailed highs, a smooth midrange, and bass that’s taut, not loose. The KR 730 strikes a rare balance: neutral enough for accuracy, with just a hint of warmth that keeps digital recordings from sounding clinical. Channel separation is exceptional, giving stereo imaging real depth. Whether you're spinning vinyl or running a tape deck, this receiver delivers a dynamic, engaging sound that feels alive.
Maintenance and Restoration Tips
After 45 years, these units need attention. Start with the electrolytic capacitors. They are likely dried out and causing hum or distortion. Clean all potentiometers and switches with contact cleaner. The dial lamps often burn out or corrode, so replace them with modern equivalents. Watch for sticky relays, especially if the amp section cuts in and out. A proper recap and service should keep the KR 730 running for decades more.
Collectibility and Market Value
- Market Value: approximately $300-$600 depending on condition and cosmetic appearance
- Collectibility Rating: 7/10
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