Plush was founded circa 1968 in New York City, and they built mainly tube amps that were covered in a variation of the Tuck N' Roll covering Kustom was famous for using. This covering has been found in several variations, but the most common appears to be a criss-cross pattern with buttons in the junctions, similar to the pattern found in older couches, loveseats, chairs, etc. In 1971, they opened a new factory in California and by 1974, they filed Chapter 11 bankruptcy. There is also a lot of speculation that Plush Amplifiers and Earth Sound Research (ESR) are one in the same company. The theory is Plush started out building amplifiers in New York, they built a second factory on the west coast in Los Angeles, and as the east-coast factory went under, the amps in the west-coast were renamed Earth Sound Research. Currently, there is no proof that Plush and ESR were the same company, built the same amps, or operated in the same building. There seems to be a lot of crossover between these two names, and any additional information can be submitted directly to Blue Book Publications.
Amplifiers and speaker cabinets previously produced in the late 1960s and early 1970s.