Kenwood KA 5000 (1970–1972)
At a special price of $150 in the early 1970s, the KA 5000 offered 28 watts of power per channel with a variable impedance selector.
Overview
The Kenwood KA 5000 is an integrated amplifier that sold for a special price of $150. Production ran from 1970 to 1972 according to available documentation. It delivers 28 watts per channel into 8 Ω, which was standard for the time. One user calls it "Trouble-Free Vintage," which points to a reputation for reliability.
The amplifier has an impedance selector with a 4 Ω mode alongside the standard 8 Ω setting. That suggests it could drive speakers with different load requirements, a practical thing given the range of speakers available in 1972. It is an integrated amplifier, with the preamp and power amp sections in a single chassis. That was common practice during the production years of 1970 to 1972.
Documentation does not specify the materials of the chassis or the internal layout, focusing instead on the electrical performance and the operational modes. The 28 watts per channel rating is sourced from Vintage Technology Archive, which serves as the primary reference for this model's identity. While other sources reference different power figures, the Vintage Technology Archive specification is used as the authoritative value for the table. This consistency ensures that the recorded data reflects the most documented version of the Kenwood KA 5000.
The available documentation names no specific lineage or successor model. It also gives no statement on why the amp was built, and the fact sheet names no competitors. The KA 5000 is its own entry in the Kenwood catalog, separate from the AV surround amplifiers or cassette decks that share the 5000 series numbering in other contexts.
Specifications
| Manufacturer | Kenwood |
| Model | KA 5000 |
| Type | Integrated Amp |
| Production Years | 1970–1972 |
| Rated Output | 28W per channel (8Ω) |
| Impedance Selector | 4 Ω mode included |
Collectibility & Value
Original price listings show a "spécial $150" tag. That puts the unit in the mid-range category for 1970-1972 audio equipment. No other original price data is confirmed in the fact sheet. The "Trouble-Free Vintage" description from a user is the only word on how owners see its reliability. No maintenance procedures or common failures are documented in the available data.
Collectors note the impedance selector as a key feature, and the 4 Ω mode adds versatility. The 28W power rating suggests a solid level of performance for home audio systems of the era. The documentation says nothing about its place in a lineup relative to other models, but it is confirmed as an integrated amplifier. No complete specifications are found for other metrics such as frequency response, THD, or dimensions.
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