I have the Kenwood HTB-504 home theater in a box. I just popped in an audio cd into my Playstation 2 (My 'real' DVD player wouldn't play this CD [Panasonic DVD-RV30]) today to listen to and the sound quality really is kinda weak. Settings on the reciever 'Kenwood VR-507' I am in stereo mode. The front speakers are set to normal, the only other option is large. I think normal would be the appropriate setting because I am using bookshelf speakers (a 4 inch driver and a 1" tweeter.) I am connecting the PS2 to the reciever via optical cable. Perhaps it would sound better if I connected the analog rca's and switched the imput mode from digital to analog? The midrange and high frequencies sound pretty good, but the bass is muddy, flat, and unresponsive. It sounds worse than both my car and my computer speakers 'Logitech z560' I've tried to correct the bass by moving the subwoofer around. Nothing is helping. The sub I am using is Kenwood's SW-35HT. It's a 8" 100w powered subwoofer. In the end my questions are these. I understand that the subwoofer is small and weak and the best method to improving it's sound would be to replace it. This is the future plan, but is there anything I can try to squeeze a few more ounces of performance out if it? Are there any other settings I can try to improve the performance of my system for listening to music? About upgrading the subwoofer. I have read about SVS and they seem to be the favorate and is what I'd like to buy but can't really justify spending that amount of cash. What are some good subwoofers in the $300 range? Perhaps I could do a DYI sub, I have the woodworking skills I would need to fabricate an enclosure, don't some people buy car subwoofers and use a home theater amp to power them? This seems like it could be an economical option. Thank you very much for your help.