Just wondering. I see the new DSP has a some nice programmable configurations on it. My interest is the pretty neat high pass filter programmablity, along with the Maxxbass feature. Sounds like a killer idea. HPF plus Maxxbass. Anybody? If a decent HPF is $100.00, and a new IPR1600DSP is $389.00 with a five year warranty, I can't justify spending $100 for a HPF when I want another power amp anyway.