I don't change that often, but I have still had a number of amps.
Kenwood 7300 (78-83)
DIY 20W Class A (83-87)
Beard P35 (87-91)
Classe DR-8 (91-97)
Krell 300i (97-02)
Aleph 30 (02-)
Kenwood 7300 (78-83)
DIY 20W Class A (83-87)
Beard P35 (87-91)
Classe DR-8 (91-97)
Krell 300i (97-02)
Aleph 30 (02-)