06RTCharger Posted February 15, 2017 Report Share Posted February 15, 2017 Ok im about to order all my speakers. I need some help from the SQ crowd here. For my subs, im getting two 15's. I have the choice of D4 or D2, BUT i havent locked in an amp or amps yet. Im going to be shooting for an 8ohm final load, if i get two D4 subs....id have to run them to individual channels right? Because i cant wire a pair of dual 4ohm subs together and get a final load of 8ohms. Its either wire down parallel for 1ohm final, or series/parallel for 4ohm final. I dont even see diagrams for wiring them series together for 16ohm, i guess thats not common or maybe unsafe idk. With the D2 subs i could wire in series together for an 8ohm load into one channel. So its either two D4 subs on separate channels/amps for 8ohm, or two D2 subs wired series togther for 8ohm. So my question is which way is more suited for a SQ build? In my simple thinking, the D2 is being wired much farther from its original state of 2ohm, its going from 2ohm to 4ohm to 8ohm. The D4 just goes 4ohm to 8ohm, just one series wiring. So thinking the less series wiring done, the better??? Or would it all be EXACTLY the same as long as the final loads are 8ohm. I dont mean just the same for your ears, i mean scientifically and on paper is it the same. Becuase if its the same id go with the D2 for the small difference it has over the D4 which is the xmax, the D2 had 1mm more total xmax than the D4. Id want that extra mm tho lol as long as it isnt stepping in the wrong direction. Shead some light on this for me SQ guys, two D4s on individual channels/amps, or Two D2s in series on one channel/amp, when 8ohm load is the goal. Thanks everyone Link to comment Share on other sites More sharing options...
WalledSonic Posted February 15, 2017 Report Share Posted February 15, 2017 Not sure why you want 8ohm load, but wiring a single sub's coils in series won't help SQ. Also, (2) 15's may not be the best choice for SQ. IIRC, you have a 2DR Tahoe? The last true full size blazer, right? Wait, lemme guess, 06 Charger RT? LOL Chevy Sonic Wall (4) 15's on 10k Build Log https://www.stevemeadedesigns.com/board/topic/209412-2015-chevy-sonicwall4-15s10klithiumlarge-case-hairpin-us-alts/ (4) Fi SP4 15's | (2) Ampere 5Ks | Active! | Arc KS600.2 & KS125.2mini | CDT Silk Domes | Silver Flute 8s | 240Ah JY | US Alts Jeep Wrangler JK (4) 8's in a 4th Order Build Log https://www.stevemeadedesigns.com/board/topic/209841-shadow-2016-jeep-wrangler-jk4th-order4-8sdc-35klarge-case-hairpin-us-alts/ IG @walledsonic Link to comment Share on other sites More sharing options...
Kyblack76 Posted February 16, 2017 Report Share Posted February 16, 2017 Your gonna need a MONSTER board, or boards to make any power at 11-13 ohm. You may want a DC 10 k per coil. SMD SUPER SELLER The Burban Build Blazer Build sold Acura trunk build sold Link to comment Share on other sites More sharing options...
Keith77 Posted February 16, 2017 Report Share Posted February 16, 2017 I think hes wishing on some LP amps that make power at 8ohm Thats cool. Im way too old to be upset by shit like that. Your name is winston. Your own parents hated you even before you were born. My penis is bigger than your penis I'm far from loud and my roof/headliner flaps around like Adam's ass on a windy day. I think it depends more on the structure of the vehicle. Link to comment Share on other sites More sharing options...
boomintahoe Posted February 16, 2017 Report Share Posted February 16, 2017 8 ohm? Is this car audio or home audio?! Until you know what amps to get, I wouldn't get the subs yet until you know the impedance your after.....which will determine final ohm load. Link to comment Share on other sites More sharing options...
06RTCharger Posted February 16, 2017 Author Report Share Posted February 16, 2017 1 hour ago, mcanderson0 said: Not sure why you want 8ohm load, but wiring a single sub's coils in series won't help SQ. Also, (2) 15's may not be the best choice for SQ. IIRC, you have a 2DR Tahoe? The last true full size blazer, right? Wait, lemme guess, 06 Charger RT? LOL The plan is IB, not a ported enclosure. With IB ive been told having more cone area and good xmax will help keep your output decent. yes names my car lol Link to comment Share on other sites More sharing options...
06RTCharger Posted February 16, 2017 Author Report Share Posted February 16, 2017 1 minute ago, boomintahoe said: 8 ohm? Is this car audio or home audio?! Until you know what amps to get, I wouldn't get the subs yet until you know the impedance your after.....which will determine final ohm load. Car audio, IB substage. I feel i should wait till i get the sub amp also but ive been emailing the supplier and i have a quote setup and if i buy all the speakers at once they will ship for free. Being that i live in Hawaii.....thats a great deal. Shipping tweets, midrange,midbass and 2subs would cost a pretty penny to ship all the way here. So im going to order it all at once. Im just wondering which ones would be more SQ efficent? Ill work around the sub setup to find the right amp. Link to comment Share on other sites More sharing options...
boomintahoe Posted February 16, 2017 Report Share Posted February 16, 2017 Infinite Baffle?? For a few 15's that'd be waste. Nobody does IB anymore....that so 90's now. You want SQ, going with a single sub and either a reallly good ported enclosure tuned just right, not too low or too high or a sealed enclosure. Link to comment Share on other sites More sharing options...
06RTCharger Posted February 16, 2017 Author Report Share Posted February 16, 2017 11 minutes ago, boomintahoe said: Infinite Baffle?? For a few 15's that'd be waste. Nobody does IB anymore....that so 90's now. You want SQ, going with a single sub and either a reallly good ported enclosure tuned just right, not too low or too high or a sealed enclosure. Lol ok thanks for ur input. Link to comment Share on other sites More sharing options...
06RTCharger Posted February 16, 2017 Author Report Share Posted February 16, 2017 Anyone? Is it better to get to 8ohm with two D2 subs or two D4 subs on their own channel/amp? Is one path superior to the other? Link to comment Share on other sites More sharing options...
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