Daddy_ Posted December 9, 2017 Report Share Posted December 9, 2017 I have a 13w7 which is dual 1.5ohms. I can either wire it to 3ohms or 0.75 ohms. If I wire to 3.ohms my choices are pretty narrow as a lot of amps don't do 1200-1500rms at 3ohms and will have to most likely use the jl audio hd1200. If I wire it to 0.75 ohms I have more choices. If I can find a amp that does 1700-1800rms at 1ohm and wire it to 0.75ohms there will be a slight increase of power say 50-75rms and when you consider voltage drop and impedense rise it will probably play around 1ohm? And will see 1300-1400rms? So what amps could you recommend Car: 2012 Acura TL Elite Head Unit: JL Audio Fix86 Front Stage : Alpine SPX-17PRO Rear Stage : Alpine SPR-60C Component Amp : JL Audio HD 600/4 Sub : 1 12" JL Audio W7 Sub Amp : JL Audio HD 1200 Link to comment Share on other sites More sharing options...
alex912005 Posted December 9, 2017 Report Share Posted December 9, 2017 If you wire at .75 it's probably gonna play a lot higher than 1 ohm. I'm wired at .7 and I'm rising to 2 ohms. Any korean amp should work. Just buy what brand you like. My Build Log Link to comment Share on other sites More sharing options...
Daddy_ Posted December 10, 2017 Author Report Share Posted December 10, 2017 I have a rookie question. Say I wire the 13w7 at 3 ohms and use the jl hd1200. So it will be wired at 3 ohms and will do 1200rms from 1.5-4ohms. So with box rise what will the jl hd1200 do power wise after box rise after 4ohms? I'm thinking of wiring it to 0.75ohms and getting a twisted sounds 1.8k or a digital designs m1d. With box rise and voltage drop the sub should see 1400-1200rms? What amp would you recommend Car: 2012 Acura TL Elite Head Unit: JL Audio Fix86 Front Stage : Alpine SPX-17PRO Rear Stage : Alpine SPR-60C Component Amp : JL Audio HD 600/4 Sub : 1 12" JL Audio W7 Sub Amp : JL Audio HD 1200 Link to comment Share on other sites More sharing options...
Wishuponasub Posted December 10, 2017 Report Share Posted December 10, 2017 Are you chasing numbers? If not find you a 1500- 2000 watt amp, wire to .7 and let er beat. You will not be able to hear the difference in between say 1400 watts vs 1600. Amps: Sundown, DC audio, Ampere Audio, Twisted Sounds, Skar, Incrmimator audio, The list goes on and on of good brands. Sitting around waiting to be installed: 4 FI X 10 270 CES alt D3400/73ah lithium AA 3800.1 (2) AA 75.4 Link to comment Share on other sites More sharing options...
Daddy_ Posted December 10, 2017 Author Report Share Posted December 10, 2017 Which would you run at .75 ohms Car: 2012 Acura TL Elite Head Unit: JL Audio Fix86 Front Stage : Alpine SPX-17PRO Rear Stage : Alpine SPR-60C Component Amp : JL Audio HD 600/4 Sub : 1 12" JL Audio W7 Sub Amp : JL Audio HD 1200 Link to comment Share on other sites More sharing options...
SkarredSierra Posted December 10, 2017 Report Share Posted December 10, 2017 All of them. Link to comment Share on other sites More sharing options...
Wishuponasub Posted December 10, 2017 Report Share Posted December 10, 2017 Yeah of those mentioned including the DD amp you mentioned they are all very capable of .7. It will be super rare that they see below 1 ohm if at all anyways after rise. Sitting around waiting to be installed: 4 FI X 10 270 CES alt D3400/73ah lithium AA 3800.1 (2) AA 75.4 Link to comment Share on other sites More sharing options...
Daddy_ Posted December 10, 2017 Author Report Share Posted December 10, 2017 With box rise and voltage drop am I looking at a 20% power rating drop? Car: 2012 Acura TL Elite Head Unit: JL Audio Fix86 Front Stage : Alpine SPX-17PRO Rear Stage : Alpine SPR-60C Component Amp : JL Audio HD 600/4 Sub : 1 12" JL Audio W7 Sub Amp : JL Audio HD 1200 Link to comment Share on other sites More sharing options...
Daddy_ Posted December 10, 2017 Author Report Share Posted December 10, 2017 I have question. Would I be able to use this Kicker amp? this amp is only 2 and 4 ohm stable. Would I still be able to wire it at 3 ohms? I calculated it and with voltage drop box rise Im getting around 1080RMS. https://www.sonicelectronix.com/item_108729_Kicker-CXA18001-43CXA18001.html https://www.sonicelectronix.com/item_127791_Kicker-KXA2400.1-44KXA24001.html With the Kicker 2400 I calculated about 1440RMS at 3ohms with voltage and box rise. The Kicker 2400 might be a good chose but Kicker1800 might also be good only if I can wire it which im not sure if you can wire it to since its only 2 and 4 ohms only. I think you can but want to clear it up. Car: 2012 Acura TL Elite Head Unit: JL Audio Fix86 Front Stage : Alpine SPX-17PRO Rear Stage : Alpine SPR-60C Component Amp : JL Audio HD 600/4 Sub : 1 12" JL Audio W7 Sub Amp : JL Audio HD 1200 Link to comment Share on other sites More sharing options...
alex912005 Posted December 10, 2017 Report Share Posted December 10, 2017 1 hour ago, Daddy_ said: I have question. Would I be able to use this Kicker amp? this amp is only 2 and 4 ohm stable. Would I still be able to wire it at 3 ohms? I calculated it and with voltage drop box rise Im getting around 1080RMS. https://www.sonicelectronix.com/item_108729_Kicker-CXA18001-43CXA18001.html https://www.sonicelectronix.com/item_127791_Kicker-KXA2400.1-44KXA24001.html With the Kicker 2400 I calculated about 1440RMS at 3ohms with voltage and box rise. The Kicker 2400 might be a good chose but Kicker1800 might also be good only if I can wire it which im not sure if you can wire it to since its only 2 and 4 ohms only. I think you can but want to clear it up. How did you calculate box rise? If you wire at 3 ohm, box rise could be between 3-4 ohm which is the best case scenario, it doesn't happen very often. Or it can be 2x your impedance, or 3x or even 4 or 5x. You could be rising to more than 6 ohms. I'd say get the DD M1D you mentioned and run it at .75. It has that new gain knob with a clip light and voltmeter so you can monitor everything. You're probably gonna get around 1000w rms from it which is pretty good. My Build Log Link to comment Share on other sites More sharing options...
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