Its a decent amp but the first thing I noticed is that the gain pots are backward. They go from 0.2 to 8v and you would think that 8v is Max but that is not the case (at lest on mine?). Make sure you tune these amps with a sine wave tone generator, a multimeter, oscope, or an SMD DD1 to make sure you aren't clipping your signal.
For the price though its a decent amp and it fits basically anywhere. Good value for the money.
Skar, please consider changing the printed gain indicators to Min-Max to avoid confusion or at least ensure the pots attenuate in the proper direction. This was very confusing initially.
Photo: SK-M4004D is mounted on the right.
I was a little worried that these amps would be a little week. Installed 2 400w and one 500w today. Very happy and surprised. On top of that they shipped super super fast. Awsome product
I bought 2 of these to run my cab and bunk in my semi.
Plenty of power for sk65 components and a set of tx 5.25
Runs cool enough and the small size works well with my layout