Over-stocked unlabeled Tonewinner brand CA-410 Bridgeable 4-Channel Power Amplifier:
45 W x 4 @ 4 ohms
90 W x 4 @ 2 ohms
100 W x 2 @ 4 ohms (Bridge connection)
These were left over private label power amplifiers in brand New unopened boxes (except one to take photographs). I personally don't have any further details than as described. It was picked by an audiophile engineer and selling remaining at below cost just so the amp's will hopefully find some good use.
They have been all sold or I would have bought another.