KenC210 Posted April 16, 2012 Report Share Posted April 16, 2012 (edited) So currently i am running 2 AQ sdc 2.5 15's and the box is just over 10 sqft gross and tuned to 35hz... pretty much no room what so ever in cargo and its 2" above window line. folding seats down is not an option for me, even though i would love to do that. So what i was thinking was going with the aq 12's but upgrading to the hdc3 series. So what do you guys think?? Could i get as loud or possible louder with the 12's or would it be better to stay with 15's? What are some pros and cons of making the change. edit: also whats the difference with copper coil and aluminum coil Edited April 16, 2012 by KenC210 Quote Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
drome20 Posted April 16, 2012 Report Share Posted April 16, 2012 what about hdc3 15s? Quote AA Mayhem 18's aq 3500's x2 Honda Ridgeline wall build! http://www.stevemeadedesigns.com/board/topic/138286-honda-ridgeline-wall-build/page__st__40 Link to comment Share on other sites More sharing options...
levee000 Posted April 16, 2012 Report Share Posted April 16, 2012 thermal handling is different.. Also what amp an ohm load are u running. Quote 2008 Yukon 2-18"s EVILS TEAM SSA TEAM AUDIOTEX Link to comment Share on other sites More sharing options...
bass_stalker Posted April 16, 2012 Report Share Posted April 16, 2012 from the soundqubed site Copper versus Aluminum coil windings.. The performance difference between copper and aluminum coil widings lies in the physical and resistance differences in the two materials. Copper is the more efficient conductor, able to transmit the same current with less cross section area. Aluminum requires more cross section area to do the same job... Aluminum has lower mass than copper giving the ability to move the same current, albeit through a larger conductor than copper, but with an overall reduction in mass... The larger surface area of aluminum can have an advantage in a voice coil when it comes to the length of the coil windings. An aluminum coil of the same impedance as copper will end up with a longer winding length, increasing the Xmax number... Some system designs may benefit from the longer Xmax if the system uses extremely long excursions, as may the case is competition vehicles making high distortion 2 second SPL runs. The longer coil windings keep more turns of wire in the magnet gap at high excursion... The aluminum wire, with its larger cross section area, is not as efficient as copper. A copper wire coil will pack more turns of wire into the magnet gap and results in higher energy over the operating Xmax of the coil. Well designed enclosures usually give better performance with the more efficient copper windings in both sound quality and output... The power handling differences between copper and aluminum are negligible IF both wires are using the same coatings and same adhesives systems. Aluminum will have more surface area to dissipate heat, but takes more power to reach the higher efficiency of the copper coil, in subwoofer applications. In midrange/tweeter applications, the lighter aluminum wire can have significant impact on high frequency performance where moving mass dominates... In 95% of the applications we see, the copper coils are the way to go... Quote JEEP BUILD PROJECT ANTIBLING.2000 jeep Cherokee.HEADUNITAlpine Cda-9886SUBSTAGE1 acendent 18" audio mayhem motor with a TI basket and tantric parts1 prototype DAT hellfire 1000.1HIGHSStockELECTRICALdb link 0 gaugeKnuconceptz Kolossus 4 gauge1 xs power d3400 under hoodBig 3 upgradeold fourwheeler build The only way to delete your SMD account is for you crawl to steve meades door step on your knees and pleade for his forgiveness and acceptance to be released...He will either grant your wishes.....or choke you with a large piece of 0 gauge and electrocute you by hooking up a solid gold DC 12k at 0.000001 ohm and 10000 volts to your eye sockets and blow your head apart You guys act like you have never clogged a toilet and ran around the bathroom frantically hoping it don't overflow. Link to comment Share on other sites More sharing options...
KenC210 Posted April 16, 2012 Author Report Share Posted April 16, 2012 what about hdc3 15s? wouldn't mind those but i would like to get some more room from cargo area to build amp rack and get a good air flow with a few fans maybe Quote Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
KenC210 Posted April 16, 2012 Author Report Share Posted April 16, 2012 (edited) thermal handling is different.. Also what amp an ohm load are u running. currently 2 kicker zx1000.1 each sub at 2ohms edit: plan on going only 1 amp possibly aq2200 Edited April 16, 2012 by KenC210 Quote Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
KenC210 Posted April 16, 2012 Author Report Share Posted April 16, 2012 So from that passage from from the soundqubed site it seems to me for a daily the copper is just fine Quote Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
pa-pa-platypus Posted April 16, 2012 Report Share Posted April 16, 2012 if youre only going to run 2k on the pair the copper coils will be perfectly fine Quote This isn't teeball. YOU DO NOT GET A TROPHY JUST BECAUSE YOU SHOW UP. Put the work in and then maybe get the respect when it has been earned 151.6 with single 12 at 41 hz 153.2 with 2 12's at 43 hz power: dd m4 Link to comment Share on other sites More sharing options...
bass_stalker Posted April 16, 2012 Report Share Posted April 16, 2012 So from that passage from from the soundqubed site it seems to me for a daily the copper is just fine yup i think thats what's generally recommended, its also the cheaper option Quote JEEP BUILD PROJECT ANTIBLING.2000 jeep Cherokee.HEADUNITAlpine Cda-9886SUBSTAGE1 acendent 18" audio mayhem motor with a TI basket and tantric parts1 prototype DAT hellfire 1000.1HIGHSStockELECTRICALdb link 0 gaugeKnuconceptz Kolossus 4 gauge1 xs power d3400 under hoodBig 3 upgradeold fourwheeler build The only way to delete your SMD account is for you crawl to steve meades door step on your knees and pleade for his forgiveness and acceptance to be released...He will either grant your wishes.....or choke you with a large piece of 0 gauge and electrocute you by hooking up a solid gold DC 12k at 0.000001 ohm and 10000 volts to your eye sockets and blow your head apart You guys act like you have never clogged a toilet and ran around the bathroom frantically hoping it don't overflow. Link to comment Share on other sites More sharing options...
KenC210 Posted April 16, 2012 Author Report Share Posted April 16, 2012 So from me switching would i get as loud as the sdc 15's or whats the main difference in running 15's or 12's Quote Kids Cadi Power Wheel Build2007 Ford Escape Build2012 Toyota Corolla Build 2013 Toyota Tundra Link to comment Share on other sites More sharing options...
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