5K Mobile Electronics Posted May 25, 2011 Report Share Posted May 25, 2011 A customer of mine picked up a used set of SA12s off c/l, but I noticed when putting them in the new box, no rubber boot, and no thick epoxy at the outer most roll of the spider. I mentioned this to another customer of mine who bought a new set of SA15's from me, he told me the older SA's don't handle tons of power as well as the newer SA's. Is there any truth to this? The guy also picked up a SAZ2500(off c/l as well) to power them, I tuned the amp down, but I can still feel the voice coils heating up through the dustcap, the bass boost is on zero. In relation, a different customer of mine bought 2 of the newer SA12's from me and put them on 2 Crunch Powerzone 1500's @ 1ohm on each sub, he beats the crap out of his with minimal warmth felt on the dustcaps. Now I know the 2 Crunch powerzone's aren't close to the SAZ2500, but they've got to be pushing at least 900-1000 rms(btw, if anybody as ever clamped these, I'd be interested to know what the results were). Or should I take them out of the ported enclosure and have him put them in a sealed to help handle the extra power? The box is 3.8 total, with a 72.5 square inches of port area x 32 long. Or, is it too much port area for those subs? What is the recommendation to make these subs last? Quote Check out our Youtube Channel and "Like" us on Facebook! Link to comment Share on other sites More sharing options...
sundownz Posted May 25, 2011 Report Share Posted May 25, 2011 The changes have not been major -- but this is the SA series history : 2009 - First SA-12s released : 4-spoke frame with 4 vent holes 1st revision - Triple joint rings added : 4-spoke frame with 12 vent holes 2nd revision - Magnet boot added 3rd revision - Pole cap size and shape change : custom tooled ventilation ring added and frame vents removed Each vent change increased thermal handling a bit -- but they have always handed a ton of power. The SAZ-2500D is probably over twice as powerful as the two Crunch amps combined in reality -- so that is probably most of it -- Now on the SA-8s we made a big improvement with the bolted on spiders starting on the second run -- the first run were just glued on and at higher than rated power could be popped off the basket. With the other sizes this never happened but we added the extra epoxy later on anyway. Quote - Jacob Fuller - Owner, Sundown Audio - Sundown Audio on FACEBOOK - Please DO NOT PM ME -- use my email address -- [email protected] Link to comment Share on other sites More sharing options...
BeAlLsTaR13 Posted May 25, 2011 Report Share Posted May 25, 2011 too much port area on that box, about 12.xx" per cube is what ive always read to be best Quote Team Sundown Audio**CURRENT** -- 2012 Scion tC Build Click Here **OLD** -- 2002 Pontiac Grand AM Build Click Herecheck them out, slap me a comment2002 Pontiac Grand AM SE 2.2l 4 cylinder ecotec.-------------------------------------------------------------------Head Unit - Alpine CDA-9887Subs - 2x Z 12 v.2s - v.3 + NS Soft partsAmplifier - Sundown Audio SAZ-3500DEnclosure - 3.33 Cubes tuned to 34.66hzFront Stage - JBL P660c 6.5" ComponentsRear Deck - Powerbass 4xl 6.5" Mid-RangeFront Stage Amplifier - Sundown Audio SAX-100.4DWires - Kicker Hyperflex 1/0, KnuKonceptz 1/0, Knu 4 and 8 Gauge, Kicker RCAsElectrical - 275 AMP DC Power H/O Alternator, XS Power S3400, XS Power D2700Videos - http://www.youtube.com/user/BeAILsTaR13------------------------------------------------------------------- Link to comment Share on other sites More sharing options...
Team Nemesis-DJ Posted May 25, 2011 Report Share Posted May 25, 2011 There has some revisions to make them "better" but the orignal SA 12 were well over built from the start .Jacob just has to have perfection . So to answer your question 3.8 is not bad for the subs ..they like 1.5 =12 3=15 per sub as far as port your a little big . But still within spec . Quote Link to comment Share on other sites More sharing options...
Supercharged DCs Posted May 25, 2011 Report Share Posted May 25, 2011 ^^^ That would be fine for aeros, but if it's slot ported he wants around 16.xx" per cube. Quote Bassless once again. Can't seem to keep a system for more than a few weeks Saving for a '06 Nissan 350z, look for build around June 2012. Link to comment Share on other sites More sharing options...
Team Nemesis-DJ Posted May 25, 2011 Report Share Posted May 25, 2011 (edited) ^^^ That would be fine for aeros, but if it's slot ported he wants around 16.xx" per cube. That is correct .He is at 19 per cube ...not that dragstic Edited May 25, 2011 by Team Nemesis-DJ Quote Link to comment Share on other sites More sharing options...
Nightshade Posted May 26, 2011 Report Share Posted May 26, 2011 There has some revisions to make them "better" but the orignal SA 12 were well over built from the start .Jacob just has to have perfection . So to answer your question 3.8 is not bad for the subs ..they like 1.5 =12 3=15 per sub as far as port your a little big . But still within spec . I'll 2nd this. Speaking from experience I run right at 1.6 cubes per 12 and 11.6sqin of port per cuft. I have each set of sa12's wired to .5 ohms on a saz3500d, which is quite a bit more powerful than the saz2500d. Make sure your guy isn't playing way below tuning since that could cause the coils to heat up quicker than normal as well. Quote 2013 VW Jetta GLI 2.0 Turbo 1 Sundown Audio SCV2000 1 Sundown Audio X15 V2 1 XS Power D3100 Audio Control LC6i Stock Deck 146.4 sealed on the dash at 37hz 2001 Focus ZX3: RETIRED Team Sundown Audio, Team XS Power, 2 time NSPL Car 3601-Up Champion, 2 time NSPL Car Hardcore ChampionHighest NSPL Scores to date:154.3db on the dash sealed at 46hz, 156.2db in the kick at 46hz155.2db unofficial on dash at 43hz Link to comment Share on other sites More sharing options...
5K Mobile Electronics Posted May 26, 2011 Author Report Share Posted May 26, 2011 Thanks for the feedback guys, I'll probably turn up the subsonic filter on there, I have it right around 25hz right now, but towards the end of building the box, I questioned weather or not the port was looking to big. I was actually thinking about just building another one for him. Quote Check out our Youtube Channel and "Like" us on Facebook! Link to comment Share on other sites More sharing options...
fox_racin4 Posted May 27, 2011 Report Share Posted May 27, 2011 ok, so the newest ones have the little spacer/vent between the basket and motor? Quote 1998 gmc extd cab 12 crossfire C710s 4 SAZ-4500s 3 Singer 400A altsbuncha mids/highs Team Asshole Link to comment Share on other sites More sharing options...
Eric B Posted May 27, 2011 Report Share Posted May 27, 2011 Ive put over 1000 watts reactive to those first generation SA's if you want to call them that and dust cap was at ambient temperature the whole time... IMO your port is entirely to big. I like to stick to around 12 sq in of port per cube with the SA's. Quote 2007 Chevy HHR LT UNDER CONSTRUCTION 1st Place Loud N Low 2010 MWSPL Finals 3rd Place Xtreme 3 2010 MWSPL Finals Link to comment Share on other sites More sharing options...
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