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Avantgarde Trios, SETs, and Impedance Curves

Has anyone ever seen an actual impedance curve plot for the Avantgarde Trios? I am about to acquire a 3 year old pair and need to find a great amp to drive them. I suppose conventional wisdom would be to use an SET of some kind. However, to perform their best, SETs really require a relatively flat impedance curve. So, I guess what I'd like to know is how badly does the Trio impedance fluctuate with frequency, and/or, empirically, what amps have Trio owners used that have rendered awesome performance?

How about it, Trio owners, any advice for a new Trio guy? Any feedback would me most appreciated!

Dean
theloveman

Showing 2 responses by no_slouch

no_slouch
48 posts
 
With my Trio 2.2s, later upgraded to Trio Omegas (huge difference, btw, like removing stuffed cotton from the horns), and using a pair of 225 subs in an 18 sqm room, I have tried Jadis 845, Zanden 300B, Hovland Sapphire, Lamm ML2, and Audion 300B power amps. The Lamms sound by far the most dynamic and detailed with full top to bottom extension, all other amps sounded somewhat anemic/rounded off though perhaps richer/more musical in some aspects. I have yet to find the sound I am looking for, but am sticking with the Lamms while I continue to tweak the rest of my system.
no_slouch
48 posts
 
I should mention the Zanden 300B sound the best on many types of music from the midrange up - detailed and musical - but just sound anemic down below. If there was a way to biamp the speakers, or otherwise adjust the bass quality, I would stick with the Zanden. I tried biamping with Lamm and Zandens, and it sounded really wacky. I also tried left speaker with Lamms, and right with Zanden (ok, shoot me), and sounds surprisingly OK if I'm sitting in some off-axis position and don't mind the different sonic signatures - the brain somehow compensates after a while.
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