I would have liked much more time with the Stacker Dos, but JP was late as usual. BUT, the time I did spend was very enjoyable. Wow is a good word for this amp at around $1K. It was very quiet with nice clean power from my Shunyata conditioner and Crystal Cable PC, which I think JP said was an improvement over his setup on the same circuit as the fridge. :rolleyes: No kidding.
Anyway, the sound was fantastic with the PS-1 and for the minute or two I heard it with the 650s. Given where I was on the volume knob with the PS-1 -- about 10/11:00 -- I thought it might strain a bit with the 650s, but I was wrong. Full sound and plenty of power. Turned it up only slightly from where I had been with PS-1. The sound is not tubey in any negative way, but it has the warmth and body of a quality tube amp. Really detailed but not etched or edgy. Good soundstage, good tone, good everything.
We couldn't compare it to the P-1 because of limited time and PC sharing, but it is surely a very strong amp and fighting way above its weight class as JP likes to say about bang for buck components. Great work dBel, but sorry we didn't take any smiling faces pics.