The TPA chip based amps have been around for a good while now. The TPA3116D2 started a new way to get very good sound quality without taking up space or draining your wallet. The units are powered by switching power supplies. These can be simple wallwarts, laptop bricks or upgraded to linear power supplies. There are many vendors supplying versions of the TPA3116D2. Boards are available for the DIY crowd as well as fully built versions with bluetooth capabilities. There are more TPA chipped amps available now. They sport higher power and improved sound quality. Many of the TPA based amps have been discussed here at the Haven in various threads. What I would like is for everyone that's tried or owns the TPA/3XXX would post them up here. I've had a TPA3116D2 with a Pyramid power supply PS3KS on my desk running 24/7 for a few years. I've used various speakers from Dayton B652 to Altec 604's. I've used it with a phono stage and with outboard DAC's. My son uses the TPA/Bluetooth with the B652's for a truck tailgate system using the trucks 12vdc battery for power. This works great for outdoor activities. So post up! Tell us what you think. EDIT: I have added the Tripath amps to the thread.