I'm in a band that utilizes hip-hop techniques. Our keyboardist (and bassist when I switch to other instruments) is looking into investing into a keyboard (probably something in the Moog line) to add some of those sounds into the mix. He'd like to be able to get an amp that he could A/B box so he could play both bass and keyboard through it. I was looking at Hartke, simply because they make both product lines. Any experience? In my experience, most keyboard amps sound like crap handling the low end, so that's why I'm leaning towards bass amplification. I'm also looking for stuff in the "working pro" range of products, we can't really afford anything boutique at the moment. Thanks ahead of time for the help.