I told myself after upgrading my pre-amp to a Pass XP-20 that I was not doing anymore upgrades this year. I did want to do an amp upgrade, but was happy with my current Cambridge-Audio 840W amps as this time. My amp research had me looking at the Classe CA M600 amps at the high end of what I was willing to spend. Spec wise, the Classe and Pass are rated similar, 600W/ch @ 8 ohm and 1200/ch @ 4 ohm. Both of these amps have excellent press all over. I could find nothing negative about either. Issues in my my mind are the Classe uses a fan for cooling, and I am anal about unwanted noise, while the Pass pair costs $8000 more than the Classe amps.
Anyway, the 4th of July I was looking at used gear where I bought my pre-amp, and saw a pair of X600.5 amps with 31 months left on the transferable warranty for the same price as the Classe amps. After to many beers, I sent off an email saying I was interested, and would decide by Monday. Monday came and I said what the hey, let's do it, but by then they were sold. However, since I had just bought the pre-amp, he gave me an unused demo pair, with 36 month warranty, for the same price.
They arrived today, and are beasts at around 150 pounds each. I walked each one into the living room, and installed them. I really like that my rack has adjustable shelfs and I was able to get a few more verticals inches for cooling. As of now, they are burning in, along with two new Shunyata Ztron Python power cables. Sorry KooKooNut Audio.
They sound great right from the start, and I have been assured after a week or so they will really shine. I have to admit I am a little irritated with myself for going crazy with spending, but to bad. If worse comes to worse I can always sell and recoup a good portion.
The biggest difference so far is that I need to turn the pre up a bit higher to get the same volume as with my previous amps. Later tonight after they have warmed up for a few more hours, and the outside noise has quieted down I can really start doing critical listening. Another excuse to stay up all night and drink beer.
This is just a quick picture. While things look unlevel, I did use a level on each shelf as I moved it. The problem is the DAC is crooked in the picture.