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JL 12w0 vs Kicker F8a WTF?!
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<blockquote data-quote="phunky.buddha" data-source="post: 7864522" data-attributes="member: 572889"><p>Ooooooh ok. I'm glad you actually posted the frequency thresholds- I guess since I cross my subs at 100Hz or under most of the time to keep my mids happy I'll probably be ok. I know that I can definitely hear the sweet spot moving around my car when I've played with timing increments as low as 3-5ms on my CDA-7998, but that was with my bright mains and in a car where I could actually hear the rear speakers. If a 25ms delay isn't noticeable on subwoofer frequencies, then I'm guessing I should just port everything in every car to extend my response huh? Would I be able to tell at 25ms on a sub if I noticed 5ms on the highs? I guess it doesn't matter since it's only one driver and the delay above 20Hz never goes longer than 11ms. I need to remember to read the graph in the right spot and ignore the extreme ends of the line.</p><p></p><p>I guess I should just extend the box in my truck to run the full width of the cab under the seats and port it for the single driver that's already in there (10w1v2) instead of running two sealed in the same volume too- the model seems to show similar SPL but much lower extension with one ported vs two sealed. //content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif</p><p></p><p></p><p>Ok, I understand- so the higher peak would move the sub response past the crossover cutoff or put it in a range just under that would make the sound muddier/boomier? I run JL Evo VRs in the S2k and PG RSDs in the truck, so I can usually keep the crossovers low enough while keeping the drivers happy at high volume- so the sub(s) should never see midbass. //content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif If I was upgrading, I'd get mains of similar caliber. I don't want to spend money in the Mazda 5 though since it's normally hauling kids (can't turn it up much), so I don't know how low the current Kenwood 3-ways that are in it will extend before I have to pass off to the sub. I'd love to build a larger box, but I can't intrude into the passenger compartment any- going larger than the cavity under the floor would mean permanently removing the third row of seats since the mount over the space I want to build into. In that case, I guess I should just run a sealed box since the range is similar without the large peak? 1.2 cuft is probably as large as I can go, and that's if I take up every last bit of volume except the spare tire itself.</p></blockquote><p></p>
[QUOTE="phunky.buddha, post: 7864522, member: 572889"] Ooooooh ok. I'm glad you actually posted the frequency thresholds- I guess since I cross my subs at 100Hz or under most of the time to keep my mids happy I'll probably be ok. I know that I can definitely hear the sweet spot moving around my car when I've played with timing increments as low as 3-5ms on my CDA-7998, but that was with my bright mains and in a car where I could actually hear the rear speakers. If a 25ms delay isn't noticeable on subwoofer frequencies, then I'm guessing I should just port everything in every car to extend my response huh? Would I be able to tell at 25ms on a sub if I noticed 5ms on the highs? I guess it doesn't matter since it's only one driver and the delay above 20Hz never goes longer than 11ms. I need to remember to read the graph in the right spot and ignore the extreme ends of the line. I guess I should just extend the box in my truck to run the full width of the cab under the seats and port it for the single driver that's already in there (10w1v2) instead of running two sealed in the same volume too- the model seems to show similar SPL but much lower extension with one ported vs two sealed. [IMG]//content.invisioncic.com/y282845/emoticons/biggrin.gif.d71a5d36fcbab170f2364c9f2e3946cb.gif[/IMG] Ok, I understand- so the higher peak would move the sub response past the crossover cutoff or put it in a range just under that would make the sound muddier/boomier? I run JL Evo VRs in the S2k and PG RSDs in the truck, so I can usually keep the crossovers low enough while keeping the drivers happy at high volume- so the sub(s) should never see midbass. [IMG]//content.invisioncic.com/y282845/emoticons/wink.gif.608e3ea05f1a9f98611af0861652f8fb.gif[/IMG] If I was upgrading, I'd get mains of similar caliber. I don't want to spend money in the Mazda 5 though since it's normally hauling kids (can't turn it up much), so I don't know how low the current Kenwood 3-ways that are in it will extend before I have to pass off to the sub. I'd love to build a larger box, but I can't intrude into the passenger compartment any- going larger than the cavity under the floor would mean permanently removing the third row of seats since the mount over the space I want to build into. In that case, I guess I should just run a sealed box since the range is similar without the large peak? 1.2 cuft is probably as large as I can go, and that's if I take up every last bit of volume except the spare tire itself. [/QUOTE]
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