i have a sunn solarus 1 piece that i have had since 1967. this amp is pristine. i use el34 groove tubes & 12ax7's, instead of 12at7's. 2 carvin vl12 speakers complete the system. i use a 4ohm output for an unbelievable sound. according to the schematics 4 ohms is no problem. i never see any comments or recognition of this fabulous amp. whats up?? i would like to find this amps value.