CJ's flagship amplifier of the 90's. Made even better by the C1 or Teflon cap upgrade installed by Conrad Johnson. The Teflon caps provide "inner retrieval" of sound that makes these amps absolutely glorious in their sound reproduction abilities. The Prem 8 is the platform that the new art monos started from. It's just that good. As well they possess the classic warm sound that CJ's reputation was built on. They are from a generation before the current highly accurate and detailed sound being sought after by companies today. Desirable by many but not everyone . It's the classic tube sound but upgraded. These amps come with 6550 tubes and I'm thinking they are winged c by Svetlanta but can use the kt120s' as well. I will post pics later. If I can be of further help please feel free to contact me. Thanks for looking. Homer King removed phone number for privacy Also have factory boxes and packing.