The SA-80 is currently the review of the probably best Class-D amp on the market. They are characterized by small size, low power consumption and very lifelike sound reproduction for which you paid in conventional amplifiers often four-digit prices. The disadvantage is the low connection and adjustment, but it makes up the sound across the board. With 2x80 watt, which is hell of a lot of class D, you can pretty much fuel each box in the domestic system well. The sound is neutral with a tight bass and by the built-computing chip also extremely dynamic. The power supply is built into the shielded enclosure, so practically to take away.
Who gets by with 2 RCA inputs with no frills, needs no further, something better than the SA-80, there are sound technically not currently on the world market.