Kenwood KM-991
A stereo power amplifier made circa 1991 in Singapore.
Overview
The Kenwood KM-991 is a stereo power amplifier from circa 1991. It was built in Singapore and belongs to Kenwood's early 1990s line of audio amplification gear. Not much technical or historical documentation exists for it. What is known comes mostly from user reports and service manuals.
Specifications
| Power output | 150 watts per channel into 8Ω (stereo) |
| Total harmonic distortion | 0.015% |
| Damping factor | 35 |
Market
A KM-991 was listed on Reverb for $129 as of December 7, 2025. Users report a common problem: no bass output, and an imbalance between the tweeter and midrange speakers. A service manual is available for the model, which helps with repair and maintenance.
Similar items on eBay
No exact Kenwood KM 991 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.