1958 Ampex 6973 Mono Block Amplifiers Original 4 Units 100% Original

These monos are some of the finest vintage amps ever made and it's, probably, due to the sound of the 6973 output tube and the quality of the custom wound Triad output trannies (only for the monos, not for the stereo 6973 version). They are in full original condition and all turn on when powered on. The continuous speaker is also working, but there is a buzzing sound.