Has introduced humming and buzzing and random pops into my monitoring system, even with fully shielded and balanced connections. Not good.
The crossover is apalling. It's not a crossover, it's just a low-pass filter. If you pass your monitors through it you'll lose everything under about 180Hz in them, regardless of where the crossover is set and you have no option to change it. So then the only option you're left with to recover those lost frequencies is to have them through the sub. My speakers sound fine down to around 80Hz and are very very good, so now I have to sacrifice most of the bottom end in order to get the lows I was initially after. And the 80 - 180 Hz range on it is just too much.
You either have to..
a) Run your own crossover system
b) have a dedicaeted sub output
c) Run the sub at 180-200 hz and compromise your monitors and deal with the stupidly agressive volume
The volume knob is completely useless, it's like the stereotypical hot and cold shower controls, 1mm to the left and you get nothing, 1mm to the right and it's drowned everything else out, then doesn't appear to do much for the rest of the 300 degrees.
If your monitors have a low frequency cut off oif their own then you MIGHT be able to get away running them straight through, daisy chainging through the inputs and effectively running the system in paralel rather than series, but this is far too agressive to be useful to most setups.
Don't waste your money, go for something with less grunt and more control. The features and performance of this product lead me to think it's more suitable to home theaters than in a studio, and should not be advertised as such.