Vooloco Posted December 20, 2011 Author Report Share Posted December 20, 2011 If it was me, i would just run 2 sa-12s on that amount of power. That amp doesnt draw much current, my bro ran his on a stock front bat, and a stinger 2150 with a 145 alt and his voltage stays above 13.5 gains set with dd-1. So a good front battery and decent rear will be all you need for that amp with that alt. those subs are only rated at 600 RMS tho. Link to comment Share on other sites More sharing options...
LoudBimmer Posted December 20, 2011 Report Share Posted December 20, 2011 Do 2 10's in 4th order. Link to comment Share on other sites More sharing options...
StephenAudios Posted December 20, 2011 Report Share Posted December 20, 2011 They can ride double the power each all day. My buddy has 2 sa-15s on a Saz-2500 If it was me, i would just run 2 sa-12s on that amount of power. That amp doesnt draw much current, my bro ran his on a stock front bat, and a stinger 2150 with a 145 alt and his voltage stays above 13.5 gains set with dd-1. So a good front battery and decent rear will be all you need for that amp with that alt. those subs are only rated at 600 RMS tho. BASSHEADS UNITE Link to comment Share on other sites More sharing options...
StephenAudios Posted December 20, 2011 Report Share Posted December 20, 2011 There also one of the best woofers for what they are rated If it was me, i would just run 2 sa-12s on that amount of power. That amp doesnt draw much current, my bro ran his on a stock front bat, and a stinger 2150 with a 145 alt and his voltage stays above 13.5 gains set with dd-1. So a good front battery and decent rear will be all you need for that amp with that alt. those subs are only rated at 600 RMS tho. BASSHEADS UNITE Link to comment Share on other sites More sharing options...
Socky Posted December 20, 2011 Report Share Posted December 20, 2011 The are "rated" at 600 rms, but many have put 1k+ to them and they handle it fine. Plus after all the imp rise, you are lucky to get 2.2k out of that amp. Jeep Cherokee 4dr -4.75 in front, new rusty's 4.5 in rear leafs -micky thompson 35x14.50x15 -locker rear -Rusty's offroad Engine/transmission/transfer case/crossmember/gas tank skid plates -Warn front bumper with 8000lb winch -Custom rear bumper -Warrior product tube doors (summertime) -Optima redtop (starter) -26XK miles and still runs like a bat out of hell Kenwood H/U 1/0 wire, 136 amp alt 200 ah batteries 12.7 daily 2 Apsm 1500 @ 2 ohm strapped on zv3 d1 with ns softparts Mb quart 125.4 wired to 4 aura 6's 3.6 cube box tuned to 36 plays down to 23hz Link to comment Share on other sites More sharing options...
Decaf Posted December 21, 2011 Report Share Posted December 21, 2011 (2) 12" fi bl - (2)48000mm^2 * 18mm = 1728000mm^3 (1) 18" fi bl - 121000mm^2 * 18mm = 2178000mm^3 vd isnt everything, but in this example you can see that the 18 displaces more air than 2 12s because of its larger cone area. Link to comment Share on other sites More sharing options...
STEvil Posted December 21, 2011 Report Share Posted December 21, 2011 1324421939[/url]' post='1808094']I saw that coming. But thats not the case Tell me then, what would move more air? 1 18 with 20mm Xmax, or 2 12s with 20mm xmax each The 2 12s will be louder 1324421763[/url]' post='1808090']1324421450[/url]' post='1808081']Technically yes It is Slightly smaller yes, but the Xmax is they key Say a 18 had 20mm xmax, but 2 12s had a xmax of 20mm each. With similar cone areas, the 2 12s win because more air is moving, thus being louder. you just contradicted yourself. if they both have the same xmax, which doesnt really matter anyways, yet the 18 has more cone area, the 18 will move more air. 20mm is 20mm. if you have two woofers it doesnt all of a sudden go up to 40, it stays at 20. what you just said is like saying i have a 1000w stereo because my woofer is 500w and my amp is 500w. it doesnt work like that The 18 - more volume displacement. Although the 12s have more motor force. Depends on the motor/coils used, but yes the 12's should have more motor force. Just for the fun of it and to possibly help you (StephenAudio) with your basic math skills here are what the 12's would need for xmax to match the 18 at 20mm. 254.47x20mm = 5089.4/226.19 = 22.5mm Xmax/Xmech isnt the end-all-be-all though. Anyways, I vote 12's. MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
Decaf Posted December 21, 2011 Report Share Posted December 21, 2011 you should be using sd not the area of a 12/18" circle. if you are multiplying by the same xmax whichever is the largest cone area will have more vd. again tho, this doesnt determine which will be louder, just which can displace more air on all notes. Link to comment Share on other sites More sharing options...
STEvil Posted December 21, 2011 Report Share Posted December 21, 2011 you should be using sd not the area of a 12/18" circle. if you are multiplying by the same xmax whichever is the largest cone area will have more vd. again tho, this doesnt determine which will be louder, just which can displace more air on all notes. sd is cone area, assuming proper measurements were made. The numbers in this thread are all pretty much junk though. Cone area is a linear measurement btw, dont measure the depth of the cone and calculate it as a true cone, just as a flat piston. MickyMcD - "Capable of making some serious trouser flapping volumes at where's-my-testicles frequencies, the Servo-Drives used to be fairly jaw dropping..." Any time you have have a power wire next to your frame put some rubber hosing (or cut up an innertube) around it. The wire is bound to wiggle (due to driving or flex) and the casing will eventually wear through. Hammerdown... 1% no links to outside websites, business related FB/YT pages allowed. Link to comment Share on other sites More sharing options...
bassahaulic Posted December 21, 2011 Report Share Posted December 21, 2011 Technically yes It is Slightly smaller yes, but the Xmax is they key Say a 18 had 20mm xmax, but 2 12s had a xmax of 20mm each. With similar cone areas, the 2 12s win because more air is moving, thus being louder. Do you enjoy talking out your ass? I hope you don't offer advice very often, I feel sorry for any one who listens. OP, you want stereo and performance. Give up. 60Lbs woofer 20Lbs amp 100Lbs box 10Lbs wire 80Lbs battery 80Lbs battery 350Lbs Link to comment Share on other sites More sharing options...
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