Sound Quality Powerhouse
I am overall highly impressed at the build quality and the sound quality of this full range amplifier with being a class D.
Physical traits:
Beautiful chassis, obviously this is an opinion, but I love the color scheme and the shape of the heatsink. This is a HEAVY heatsink, I was rather shocked at how much it weighed. Once you see it in person, you'll understand that pictures almost do it no justice.
Channels 1/2 and 3/4 are identical as far as gain setting and crossovers go, something that "most" 4 channels don't offer. (i.e. on other amps channel 1/2 will only do HPF or LPF but not bandpass, while 3/4 will do bandpass). With them being identical you can run full active no issues at all. The RCA inputs are TIGHT, if you have loose fitting RCAs then they'll still be really snug on the inputs. If you have Knu Konceptz karma RCAs you will HAVE to buy other RCAs or else you will definitely break something with how tight the inputs are. Power inputs are to spec, and so are the outputs, they are actually 8 gauge. Something I was ecstatic about was that they provided the necessary allen wrenches to for the terminals. The mounting feet aren't mounting feet, but actually the full length of the amplifier, making them more rigid.
Sound quality:
My first impression was that holy F#$% this thing makes some power! I had a junk 100W PA speaker on the inputs while tuning it for the evil components. As I was turning the gain up while watching to see where it started to distort on the scope, well, I never got there because that PA speaker sure got smelly lol. So I just set the output voltage to 25V for the evil mids and 17V for the evil tweeters. Still plenty loud to keep up with my 15" evil sub-stage. Once everything was tuned I was blown away. So crisp and true sounding, and loud as well. There wasn't any of that off settling sound that other cheap class D full range amplifiers produce. The only negative class D trait that exists with this amplifier is the floor noise when there isn't any music playing. It is so minimal that unless you're in a completely silent environment you'd probably miss that there was any floor noise. So I can't even complain about that for the sound quality and power that comes from this thing. If you bothered to read all the way to here, you're considering it, so do yourself a favor and buy it.