I've got a pair of these very sweet little amps, both full of upgrades:
1.) Nichicon CAPS Nichicon Muse (Black Gold ) (6 per unit)
2.) Takman Rex GAIN Resistors
3.) Billet RCA's CM-R1 DH Labs Billet Connector
4.) 5 Way Gold Plate Speaker Terminals
These are rated at 50W/ch into 8 ohms. They power conventional speakers like DeVores very well, and are loads of power into HE speakers.
I am the original owner, they were built for me this spring, and have around 100 hours each. I have the nice original boxes and foam packing.
New retail is around $600 each. I am asking $425 each shipped in the CONUS

