Kenwood KR 6600 (1977-1979)
Specifications
| Feature | Specification |
| Year of Production | 1977-1979 |
| Power Specifications | 60W per channel (8Ω, 20Hz-20kHz, 0.08% THD), stereo |
| Impedance | 4-16Ω |
| Sensitivity | 1.5μV (FM), 200μV (AM) |
| Key Features | DC power amplifier circuitry, FET front end, dual power supply, loudness contour, tape monitor, phono MM/MC input, walnut veneer cabinet |
Historical Significance
Kenwood's KR 6600 came out in 1977, when silver front panels and serious engineering defined the top-tier receiver. It belongs to the KR series. Its true DC amplifier design is the odd part, since it has no output capacitors in the signal path. The case is built heavy and finished in walnut veneer.
Sound Signature
Expect clarity that cuts through the mix—clean, detailed, and dynamically alive. The KR 6600 delivers tight, controlled bass and smooth, non-fatiguing highs, thanks to its low distortion and wide frequency response. Whether driving vintage bookshelf speakers or modern hifi cabinets, it renders music with authority and finesse. This isn’t colored sound; it’s transparency with soul.
Maintenance and Restoration Tips
After decades of service, these units often need work. Start with the capacitors. Electrolytics dry out, especially in the power supply. Clean all potentiometers and switches with contact cleaner to restore smooth operation and get rid of crackles. The pilot lamp is likely burned out. LED replacements are now widely available and draw less heat. Watch for sticky relays in the protection circuit, and verify the thermal protection system works before long listening sessions. A full recapping and service can bring a neglected KR 6600 back to original condition, or even better.
Collectibility and Market Value
- Market Value: $250-$500 depending on condition and cosmetic appearance
- Collectibility Rating: 7/10
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