Avantgarde Trios, SETs, and Impedance Curves

I have Trio 2.2 and tried an Atma-shpere M60 MK.II. The sound was very, very fast. The highs were rolled off and the sound was dead. I got board very quick. I suspect there must be an impedence drop in the top end. I use a pair of Viva Aurora monos. They use the 845. They sound very balanced and extended from top to bottom. They are alot of power for Trios and can play them at an insanely loud volume. I have only tried this a few times for a couple of minutes to impress my non-audiophile friends. I found the sound to be fast until I heard the Atmas. The Atmas I felt were maybe to fast, if that is possible. I will be trying a friends Wavac 300b next week. E-mail me if you would like to know my opinion on how it sounds.
Steve.

I think Atmasphere is saying that some SET's have trouble with the tweeters crossover. My 845 amps sound very extended on top. They are very powerfull for SET's though. I have heard from others that 300b amps have no problem also. Wavelength recommended to me there 300b Cardinal over their lower powered amps for trios. I will be trying a Wavac 300b next week and will give my comments later. It sounds like some of the flee powered SET's might have problems with trios. Many people use them though, so they should be auditioned first.
Steve.

I would like to add one more thing that I forgot. I talked to Jim Smith last week on the phone. He no longer represents Avantgarde, but still answers the phone and gave me his opinion on amplifiers for Trios. I hope you don't mind me quoting you Jim. I was interested in maybe a ART px-25. He said that he thought the ART px-25 was a very good amp. I didn't ask him about the Audiopax which he also sold. I asked him about my amp, 845 Viva Aurora Monoblocks, which he did sell at first with Avantgarde. He told me that if he was stranded on an island and had to choose one amp for the rest of his life it would be the Vivas. It was a nice comment to hear from someone so respected in this industry. Jim says he has closed the distributorship business for good. I don't see any gain to make a biased comment. I still would like to try a low powered like px-25 or 45 tube. I have to hear it one day for myself. There must be other Trio owners out there with other amp comments. Also, anyone in the Vancouver, Canada area with a flea powered that would like to hear on Trios let me now.
Steve.

Has anyone tried the ART PX-25 or Wavelength Cardinal with Trios. Anyone else have any comments on 45 SET's with Trios.