This is a single working pair Dynaco Mark III Mono power amplifier from my long-term collection with all vintage tubes. I had owned more than twenty units of this Dynaco Mark III mono power amplifiers since 1976 from my arrival of united states. During early 1970, when the arrival of Solid-State Amplifiers, many audiophile collectors were dumpling out their tube amplifiers and switched to Solid state amplifiers, I had collected many old tube amplifiers, such as Mcintosh MC30, MC60, and MI275, MC275, Dynaco Mark III, Harman Kardon Citation, Fisher, Audio Research, VTL, and many others. Now is time to let go of all my vintage collections for better home.
This single Dynacon Mark III Mono Power Amplifier using vintage 6550 tubes with plenty of tube life on them. It output 60 RMS Watts power to their speaker loading. The bass of it are very accurate with the high is also very sweat. it got more dynamic punches than the Dynaco ST-70. You will not be surprised that these vintage Mono Amplifier if you purchased a pair are still sound very close to modern stereo tube gear sound. Some of the name plate is lost on the tube cage, so they could not offer for a good looking pair but just available for mono amplifier. If you want for a stereo amplifier set you can purchase two of this mono amplifiers to make them Stereo set.
I have more of this Mono Block Mark III, if you want a pair for stereo setting, you can buy two of these. Just let me know for sure.