Nolitan,
I used the 60s to run my Eclipses for about a year. They were by far the best (smooth and liquid) of any amp I tried. A pair of Odyssey monos were up there, but a not-so-slight grain caused me to reconsider.
The only reason I sold the 60s is because they ran too hot for my smallish room.
At 120 watts per, the BATs have no trouble pushing the Avalons. My friend with the Ascents has the nicest sounding system my ears have ever heard. He has a large room with very high ceilings.
I now use a pair of Primaluna 7 monos. These are rated at 70 watts per and they run the Eclipses smoothly and with that tube liquidity. Good soundstage and depth. Never fatiguing. I was concerned about the low power, but this is not an issue, perhaps the small room and reasonable volume has to do with this?
But they do sound fabulous and the PLs are not nearly as hot as the BATs.
About a month ago, I took ath PLs to a friends to run his Mag 1.6s. He immediately started searching for tube amps. seems he found a pair of Quicksilver tubes, but I have not had a chance to listen.
Ever since I tried the BATs, i just cannot live without tubes.
