Lafayette KT-550
Not much is documented about the Lafayette KT-550 beyond a few early-1960s audio publications. The record shows a stereo power amplifier kit rated at 100 watts total (50 watts per channel). It fit the period trend toward higher-powered home audio components.
Audio (June 1961, p.46) called the KT-550 an excellent amplifier that built easily, within the capabilities of almost any constructor. The same review noted it as a prime example of the move toward more powerful amplifiers without compromising quality. By March 1962, a High Fidelity Equipment Report (p.59) covered a very similar unit called the Lafayette LA-550 - possibly a factory-wired variant or a later revision. It was again rated at 50 watts per channel and noted for unusually wide frequency response.
That is about all the period coverage there is. No schematic, service manual, or production date range has turned up in any of the usual archives. If you own a KT-550 and can confirm the year of manufacture, circuit topology, or original price, the Archive would welcome the details.
- Type: Stereo power amplifier kit
- Power output: 50 W/ch (100 W total)
- Known period: Advertised mid-1961 through early 1962
- Related model: Lafayette LA-550 (likely factory-wired version)
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