I've been using it for two channel audio with SACD, DVD-A and redbook with very good results for such a cheap unit. It doesn't image as well as good tube amps.

The one I'm using has no mods but I do have power adapters on order to upgrade the power cord to a computer grade.

Detailed info can be found on the pioneer web site and Newform Ribbon web site.

If find their best attribute is with redbook CDs and DVD-As using digital coax input. Others have fond a way to use the Beringer 2496 crossover.

I recently finished breaking in my XR45, running it via coaxial from a DVD player in my notional two-channel HT. Unfortunately, my old DVD player flamed out at about the same time and I just got the Pioneer DV45a to use with it. I'm running them 24/7 to speed up the DV45a's break in. Once I figure out how well they work together, I may bring the XR45 out into my main system to hear there. I have my doubts that it will cause me to sell my amp and linestage, but I have to try anyway. Regardless, if it is good for my HT set up, I may look into some simple modifications (eg, a normal IEC connector so I can use a decent cord without an adaptor).

Wayne,

I picked the XR45 up via an internet dealer for $300. The coaxial feed seems to be the best, albeit that channel won't work for some DVD-As or any SACDs if that is what you want.

Regards,

Chris

100W according to the marketing dept. The spec on the Panasonic website says:
100W per channel (10Hz-20kHz, 6 ohms, 0.9% THD).

I've never seen a distortion rating that high. And everyone else rates amps at 8 ohms. A proper rating would also state how many channels are being driven. I doubt it NAD would rate the same amp above 50W.