BEST AMPLIFIER BOARD ON THE INTERNET. FULL STOP. Perfect layout, perfect placement, programming header for the CSRA64215. Thermal pads for the chip ... beefy inductors ... everything, the works! 100% worth the money !!!
There is quite a lot of hiss unfortunately. There is a fix however, and it involves bypassing the op-amp. NO IDEA WHY IT'S THERE IN THE FIRST PLACE! Maybe the amp was just too quiet ... No loss in volume ... almost 0 hiss ... works excellent with this mod