The Gibson GSS-100 was a 100w two-channel all-transistor (solid state) guitar / bass amplifier launched by Gibson in mid-1965. It consisted a separate head and two 2x10" speaker cabinets, with a June 1965 launch price of $499.50. It was joined in 1966 by a sister model, the 50w GSS-50. t was a short-lived model, only produced for three years, 1965-1967.
It was a pretty fine amp for its time, equipped with reverb, tremolo and vibrato. It was described as follows in the 1966 Gibson 'Guitars & Amplifiers' catalog:
The new Gibson solid state super power all-transistor amplifier series lets your audience hear every note, everywhere. Every exciting tone – clearly, distinctly, radiantly.
The GSS-100, with its full power of 100 watts (more than 200 watts peak power), it's three-unit sealed-case, cushion-of-air construction principle, and remarkable versatility, projects throughout any room or auditorium, regardless of size, shape or acoustics. The GSS-100 as the authority to engulf a vast outdoor audience, yet precision control for subtle, sophisticated jazz sound in an intimate room.
Amplifier advertisements originally published from 1968 onwards. Click on the images for larger copies. Check out other vintage Gibson advertisements
Gibson GSS-100 - Some Guitarists Have All the Fun (1968)
1968 Guitar Player advert featuring examples of much of Gibson's late 1960s range: the Gibson B25-12 flattop acoustic, GSS-100 solid-state amplifier, and two electrics, the solid-body Firebird III ...
Just 2921 Gibson GSS-100 amplifiers were produced between 1965 and 1967, with 836 GSS-50 amps built in 1966-67. The shipping data for the GSS-100 and GSS-50 is as follows:
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