Tune Guitar Technology 1983 to present According to Talk Bass Forum  Tune Guitar Maniac and Tune Guitar Technology are different brands and have nothing to do with each other – supported by communication from Tune Guitar Maniac. Looking at the Tune Guitar Technology web site the fonts of the brand name are identical, headstock logos are the same, the model designations are also similar and they claim to originate in Osaka Japan in 1983 with the following model history:

Bass Maniac series introduced 1984

Hatson’s TWB 1985

Hot slapping SWB series 1986

Casiopea TWX series 1987

Supernova ZI series and Modern Acoustic Bass 1989

WB series in 1993