Kenwood KA-9100 (1977–1979)
A solid-state integrated amplifier from Kenwood’s golden era, known for powerful output and exceptional phono stages.
Overview
The Kenwood KA-9100 is the flagship integrated amplifier of the classic KA series, released during Kenwood's golden era in the late 1970s. It is a DC stereo integrated amplifier built with solid-state technology, designed to deliver both high power and high fidelity. Known for its robust build and audiophile-grade performance, the KA-9100 remains a perennial favorite among vintage audio enthusiasts. It features both MM and MC phono stages, which many consider competitive with standalone phono preamps costing significantly more.
Specifications
| Power output | 90 watts per channel into 8Ω (stereo) |
| Phono stages | for MM and MC cartridges |
| Frequency response | 7Hz to 50kHz |
| Dimensions | 430 x 149 x 384 mm (WxHxD) |
| Weight | 16.7kg |
| Power consumption | 660 W (max) |
Context
The KA-9100 represents the pinnacle of Kenwood's integrated amplifier design and was released as part of the KA series during the company's most celebrated period. It was built to offer a rare combination of power, features, and value, earning its status as a classic. The amplifier's sound is widely praised, with many noting it can drive demanding speakers effortlessly.
Market
The Kenwood KA-9100 typically sells in the $400–$900 range, though some listings have reached into the $1,500 range, prompting commentary about rising prices. Units in excellent condition are described as very rare. Common issues include channel failure and static in the gain stage, with some repair guides noting the need for capacitor replacements.
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