bombsaway

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?

Hey everyone, Long time lurker here, finally decided to pull the trigger on a 12" ICON and would like recommendations for an enclosure. Given my driver choice I'm obviously going for sound quality. But who doesn't like a little bit of output? It will be going in an IS300 and run off of a PDX M12. My ICON will be seeing anywhere from 500-1k watts depending on where it blends best with my front stage. Anyway, I noticed that on the product information page for the ICON there are two different optimum enclosure size recommendations. Under the "Enclosure Recommendations" tab it lists ported optimal as 2.25 ft^3 @29-34hz whereas the "Pre-Designed Enclosures" tab has a listing labeled 12" OPTIMAL PORTED 2.5 ft^3 at an undefined tuning. Given the space that I have in my trunk, it would be a tight fit but I could make a 2.5 ft^3 net enclosure work. Also, considering the dimensions that I have to work with, I can't really use the pre-designed enclosure because my trunk is gutted and custom built. Anything over 17" deep will overlap my amp rack. I listen to different types of music every day including hip hop, reggae, classic rock, oldies, solo guitar, contemporary Hawaiian, and among other things, country. I've run a bunch of different subwoofers/tunings but only my RE SE has seen multiple enclosures so I'm not confident I can say what I liked about x tuning over y given they had different port areas and amplification. A buddy of mine is a cabinet builder and he's been building my enclosures for years. I'll be pulling a favor for this one. On to my questions. Why are there two different sizes listed as 'optimal' and what would you consider given my circumstances/goals? Would the effects of the extra .25ft^3 be anything to worry about? What tuning would you recommend given my diverse taste in music? How much port area would serve me best? Thanks

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