I've come to the conclusion that my now "old" XR55 is not the best match to my Ascend 340SEs and would like a more musical receiver or integrated amp. I'm actually going to stick with 2-ch. for the time being (Yep, I've been running the XR55 in 2 ch. only). So, the Cambridge 540A V2 or or even the 340A have my eye. Does anyone here have any experience with either?