TRU technology b4100 upgrade with SS-Audio Discrete V5 Op-amps
Upgrading a car amplifier (TRU technology b4100s and only to the optional S-module preamp card.) Stock opamps were 3x AD275. Did a factory upgrade to BB2064 then did a DIY upgrade to BB627au, then upgraded all the caps to WIMA MKS2 and Elna Silmic II, then upgraded to SS-Audio v4 and now v5 discrete op-amps. […]