Luxman F-105 (1958–1961)

The Luxman F-105 is an early unit that sources call both a "program selector" and a "control unit preamplifier." It was Luxman's late-1950s take on system control - a metal-chassis box with step switches and a tape monitor, made to sit at the center of a component setup. It appears to have been meant for pairing with the Luxman M-105 power amp (or another compact amplifier), which would make a pre-main combination. AC/DC 100-240 V, 50/60 Hz, 4 W consumption.

The recorded specs for the preamp side are 1 mV/50 kΩ input sensitivity, 1.5 V rated output into 6 kΩ, 0.05% distortion and 70 dB S/N. That is about all that survives. No dimensions, no weight, no original price, no frequency response figures.

By the late 1980s, Luxman had reused the F- naming for a very different product. High Fidelity (April 1987, p.49) noted the F-105 as a $550 remote-controlled surround sound control center with audio/video switching - a home theater component, not a program selector. The 1958-1961 dating is single-source, and the product type carries a documentation conflict between "program selector" and "control unit preamplifier."