Hello, I've done my fair share on reading about the crossover settings for both the amp and subwoofer, and I have my amp and subwoofer setup like this: Subwoofer settings is turned to max (120 I think) Amp settings is on 80. Now my situation is this: The surround sound speakers i'm using are very cheap and crappy when it comes to bass. I'm not sure what frequencies they pick up for the lowest. How should I set my amp's crossover to help fill in the gaps between bass without losing my nice, low bass? I haven't tried anything yet, I wanted to get expirenced help before I started messing around with it. Also, there is equalizer adjustment for all the frequencies of the speakers (not subwoofer) Does anyone have any recommendations on how I should set them for crappy, cheap speakers? The frequencies are: 63HZ 160HZ 400HZ 1KHZ 2.5KHZ 6.3KHZ 16KHZ -Thanks for the help. EDIT: I just found the SPECS for the speakers i'm using, and the frequency range is 140Hz~20KHz. Does that mean I should put the crossover at 140Hz? And also, my front speakers are different than my rear speakers. The rear speakers are even crappier! The sound is "hollow" that comes out of all the speakers, but worse out of the rear ones. What adjustments can I do to get rid of that "hollow" sound the best?