Friend turned me onto these - "great sound for the$". TDA-8922B Damp used in Russound AirGo speakers -sold by allelectronics as 20watt per channel amp. To get free shipping I had to order at least three and couldn't figure out what to do with three -so ordered four. Set me back $slightly less than $104 including postage ( to be clear -that's 104 bucks for four pieces of stereo 20 watt per channel amps). Over the last week or so I've pulled the covers off so often that I'm beginning to wear out the threads the bolts screw into. What I've landed on is running 'em bridged -65W per chassis into 8ohms per box. Have done the following: 1.) removed AC power cord output cable (cut off blue and brown wires) 2.) removed speaker output wires -capped off red and black wires so they don't short against something. 3.) Used AC out hole to install a five way binding post negative- green wire soldered to that. 4.) Used speaker out hole to install plus five way binding post -white wire soldered to that. NOTE: Use smaller fibre washer to insulate from chassis -with larger fibre washers inside and outside chassis to deal with larger hole diameter -goal is to make sure neither binding post can short against chassis .5.) Removed 3.5mm input cable -cut it shorter ( down to 2" or so) -installed RCA jack with appropriate non-conductive washers/insulators to keep jack from shorting against chassis in hole left from input wires.Solder shield to ground of RCA jack -solder red and white wires to center pin. 6.) Put covers back on -Note -power switch on back panel. So -what's not to like ? Compared to the pair of Adcom GFA-545-II that normally power my SEAS A-26's -anemic deep bass. After about 10 min. I no longer notice this.Sweet little amps!