bombsaway

Thanks for your help, Aaron. When you say approximately, how many square inches can I deviate before it's really noticeable and in which direction?

Thanks for your quick and concise responses. Seems like I'd be happy with 2.25ft^3 net @33hz. What port area would you suggest for this?

I guess my search wasn't extensive enough. Will do, thanks.

Hey everyone, I've got this irritating alternator whine ever since upgrading my front stage, hopefully someone can give me some insight. Here's my setup: 02 Lexus IS300 Alpine CDA-9856 MRX-M110 RE SE 12 *SPR-17s *PDX 4.150 *KX3 crossover The items marked with asterisks are new components to this install (owned them since ~07, sat in the closet for a while) and are where the noise is coming from somehow. I've searched extensively for resources to find anything I could do to fix this issue but to no avail. The most comprehensive guide I've found is at http://www.termpro.com/asp/pubs.asp?ID=121 but I've tried everything (new to me) that they suggest, but haven't found a fix. I did, however, manage find the culprit. RCAs straight to the PDX (from the deck) produces no noise whereas RCAs to the KX3 gives me the whine. So obviously I'm getting noise from the KX3, but I don't know why. I tried piggybacking the ground from the KX3 into my ground block for the amps, giving it its own ground separate from the block, and, for the sake of troubleshooting, grounding it straight to the battery; no cigar. What else can I try to find the cause? Any and all help is greatly appreciated. Thanks