I used to own a Cayin (probably the same model as yours, 55 wpc integrated, 4xKT88 tubes) and it was a nice piece for the money. Not in the Triton's league though: the Triton costs 4x as much and weighs twice as much, plus it puts out way more power and has more current capability. Not really a fair fight.
I ended up with Rogue M150 monos, being currently upgraded to M180's. I considered the Triton, but already have a fine preamp, and like to try things out from time to time, and didn't want to spend extra just to have a preamp that wouldn't be used. At retail, a set of M180's and a nice preamp is almost the same as a new Triton, and sounds at least as good, with more flexibility.
