Kenwood KA-660D (1988–1989)
A solid-state stereo integrated amplifier with MM/MC phono input, made by Kenwood for the late-1980s hi-fi market.
Overview
The Kenwood KA-660D is a stereo integrated amplifier. Kenwood built it in Japan from 1988 to 1989. It has a built-in phono stage for both moving magnet (MM) and moving coil (MC) cartridges, so a turntable can plug straight in. It belongs to Kenwood's KA series of amplifiers. A service manual is confirmed to be in circulation, which helps with long-term maintenance.
Specifications
| Product type | Stereo Integrated Amplifier; Integrated Amplifier; MM/MC Solid state integrated amplifier |
| Production years | 1988 - 1989 |
| Made in | Japan |
| Original price | approx. 598 DM (1988) |
| Power output | 60 watts per channel minimum RMS, both channels driven at 8 Ω from 20 - 20,000 Hz with no more than 0.08% Total Harmonic Distortion |
| Frequency response | 20-20,000 Hz |
| Total Harmonic Distortion | no more than 0.08% |
| Input sensitivity (Phono MC) | 0.15 mV |
| Input sensitivity (Phono MM) | 2.5 mV |
| Input sensitivity (CD/AUX/Tuner) | 150 mV |
| Input sensitivity (Tape Play) | 150 mV |
| Input impedance (Phono MC) | 100 Ohm |
| Input impedance (Phono MM) | 47 kOhm |
| Input impedance (CD/AUX/Tuner) | 47 kOhm |
| Input impedance (Tape Play) | 47 kOhm |
| Output (Tape Rec) | 150 mV/220 Ohm |
| Signal-to-Noise Ratio (Phono MC) | 76 dB |
| Signal-to-Noise Ratio (Phono MM) | 90 dB |
| Signal-to-Noise Ratio (CD/AUX/Tuner) | 100 dB |
Market
The Kenwood KA-660D has turned up in original packaging with documentation. It is listed on platforms such as eBay and Hifi Shark. A service manual is confirmed to exist, which helps with restoration and repair.
Similar items on eBay
No exact Kenwood KA 660D listings are live right now — these searches show current Kenwood and similar vintage audio gear on eBay:
As an eBay Partner, we earn from qualifying purchases. This helps support our independent vintage technology research.
Related Models
- Kenwood A-62
- Kenwood A-82
- Kenwood A-92
- Kenwood D-3300A
- Kenwood DA-1100EX
- Eico 3150 (1967)
- Fisher CUSTOM-ELECTRA-I (K-14/K-15) (1957)
- Fisher CUSTOM-ELECTRA IV (E33/E44) (1960)
- Akai AM-2400 (1978)
- Akai AM-2600 (1977)