OH MY!!! What a difference!!! I replaced my old Technics receiver with the PE 250watt amp and I'm glad that I did. I cannot beleive how much more "clean" output I got. I ran all the tests and even TPM passed with flying colors!!! I have never felt bass like this before and I only have to amp volume about 1/3. WHEW!!! Now owners of this amp how do you know if the bass boost is disabled??? I have my crossover at 40hz because of my setup. Denon 2802, JBL s412p(200watt RmS) mains, JBL L1 center, and S-38's rears. I know my mains go into the high 25+,s by themselves. Thank you all for helping with the project. My friends are in awe when I demoed it this afternoon.