What are the possible causes of subwoofer clipping? I have a pair of 8 ohm 12" Delta 300 watt woofers in separate 4 cubic foot enclosures. I had them hooked up to 2 old 110 watt receivers and would get clipping when there was any real loud explosions or the like. I spoke to the owner of the speaker store and explained what was happening and he told me they were under powered. So i went out and bought a 500 watt plate amp and now have them wired in parallel. Now i can't turn the volume up past 3 because i'm getting clipping. I was told that because these speakers have a xmax of 1.4 this is the reason and that these speakers are designed for a guitar and not for subwoofer applications. I need to know what i'm talking about before i take them back. Also i will be changing these speakers and i would like to know what would be a good replacement in a 15" or 12" subwoofer speaker for under $200 a piece. Any and all comments welcome. Thank you KWWINFLA