Anyone heard the Consonance Cyber 800 amps?

I own Cyber 800 for about a year and I'm very happy with them . I got them from a N.J show room of "Quest for Sound" . I talk to Steve (owner of the store & dealer for Opera Audio line) before the show about these amp. but simply could not commit financially. At the end of the show he gave me an offer I couldn't resist. After getting home I set them up with my Martin Logans Aerius I & listen. I was very impressed what I was hearing. The vocal were cleaner more redefine , stage was deeper with more layers then before. Bass was punchier & over all more musical in the same time. Sound became more like real music (isn't it what we all want). My McIntosh witch I used before simply could not keep up with Cybers. Recently I replace original tubes with NOS tubes from Amperex 6922 white label made in Holland(1960)& Tungsol 5687 from early 1960's , also replaced stock EL34 with JJ blue new line. After installing new tubes sound became more sweeter , even better sound stage then before , very tree dimensional and better resolucion . About two months ago I purchase Vandersteen Quatro witch in my humble opinion are the best speakers for the money (I was also looking at Opera M-15 but they are to big for my New York apartment). I was a little concern about Cyber 800 driving new speakers at first , because they are only 78 watts per channel. My worries quickly disappear . Cybers had no problems driving Vandys. The 300 watts amp. ( driving bass units ) build in Vandys properly helped. If you are looking for natural, musical and universal amp( accepts EL34,KT88 and 6550's witch will bring it to 110 watts per channel ) look no farther. Take my word for it. You will save a large amount of money & you will be happy for a long time.

Mrjstark, thank you for your thoughts on the Cyber 800. You were incredibly thorough!

The only thing I can add is that the Cyber 800 does NOT accept 6550 or KT88 tubes, or KT77 (at least, JJ KT77) for that matter. EL34 and 6CA7 variants are compatible.

Thank you,
Joe Trelli
UltraViolet Audio
North American distributor for Consonance

I'm sorry for confusion about other tubes that I said can be used with cyber 800. I personally did not try it. I got this information from one of the papers Steve from "Quest for Sound" gave me when I purchase these amps. If in fact these tubes can not be used with Cyber 800 amps. I will contact Steve & ask him for clarificacion. If those brochures give misleading information they should be removed immediately from his shop display section. Ones again I apologize for any confusion this may cost. Sincerely M.Stark

Please don't worry about it, Mrjstark!

I just don't want anyone ending up with a 4th of July scenario. I have personally tried the JJ KT77, Sovtek 6550, EH KT88, and JJ KT88 in the Cyber 800 tube monoblock amplifiers. None are compatible due to the bias settings. It will be apparent within about 5 to 7 seconds this isn't something that's going to work.

All of the EL34 and 6CA7 I have tried have no issue.

The Cyber 800 uses a cathode bias configuration. While you cannot run the other tube types, it's quite convenient in that there is nothing to adjust.

Stephen is no longer the distributor or a dealer for the line.

Thank you again!

Joe. Thank You for clarification. P.S I did not know that Steve isn't a OPERA dealer any more ( have not talk to him in a while ). I'm very surprise , because Consonance was probably one of his most successful lines. Anyway, thanks again. Sincerely ; M.Stark