I have had the CSS for a month or so and it has totally replaced my Bose compact. I have played all sized rooms and from 25-250 people. Also my band and Karaoke shows, The band mates, singers, and audience in general, simply love it.

I bought the Behringer Sub to go with it but don't need it. The lows are fine as is. I did buy the Gator amp stand and put the amp on it's side with the side speaker facing the floor. This way you don't have to worry about a corner or any other reflector to bounce your sound off from.

I went through the same quandry as Don M. Until I used the amp stand, I had to experiment with side deflection, distance from the KB, and volume and width controls.

Start out at 12 O'clock on all with volume at 10 O'clock. Feed a hotter signal through the mixer and/or KB to minimize any distortion and still give you headroom.

Most of all, until you get your placement right, you can't trust your ears. That sounds counter intuitive, but the audience will marvel and you may be disgusted and try to tweek the amp-DON"T until your sure.

I have been playing for sixty years and still don't know it all by any means, but I do know good sound, and this is it.
Bernie