Ndnkobra Posted January 5, 2010 Report Share Posted January 5, 2010 Hey guys, i wanted to make one final post before i start to re-hook up my system, and i have a lot of questions that need to be answered before i can start making progress, because i want to get it all right the first time. My first question is about the amplifier itself and the way its hooked. Both of my subs are Dual 1, and i need them both to achieve a final load of 1 ohm. I think i've done this but i need clarification, because its a 1 channel amp and my amp speaker terminals are bridged. It kind of looks like - + + -, and the second (+) and the last (-) both are connected to my 2 D1 subs. Will this achieve a final impedance of 1 ohm with both terminals being bridged, or do i have to connect the wires to the amp speaker outputs a different way? After this question is answered, i think it'll be suitable to answer the next one. This next one is about gain setting, i've already looked at the chart and that makes sense to me but there's confusion else where. First thing is i'm using a 1200W @ 1 ohm amp, which is about 34.6V. But both of my speakers are rated at an RMS of 1000W. Do i use the amp rated rms or the speaker rms? Most guides say use the lower of the two but i have two speakers, which is why the question popped up in my mind in the first place. The second thing is (if the bridging part hasnt cleared up yet), how do i set the gains when i have bridged channels? I've also read up on a guide that you cut the impedance in half and then do the formula out? So if that were the case, i would have a .5 ohm load and i would multiply that by my RMS rating of the amp of 1200, and take the sqrt of 600, which is 24.5V. Anyways thats just assuming that we get there and thats the right way of doing things. I HOPE that i can all of these questions solved, and thanks for any help, its greatly appreciated! Link to comment Share on other sites More sharing options...
darthballsy1 Posted January 5, 2010 Report Share Posted January 5, 2010 if you bridge it and run it in series you can get 4 ohms but idk if you could keep the 1 ohm on each sub Pioneer DEH-P3000IB head unit Rockford T1000.1bd Two AQ SDC 2.5 12s My build log. http://www.stevemeadedesigns.com/board/topic/84319-darthballsy1s-04-ford-ranger-video-build-log/ Link to comment Share on other sites More sharing options...
k3n12ock Posted January 5, 2010 Report Share Posted January 5, 2010 According to the 12volt wiring wizard, you can get a final 1 ohm load from (2) D1 subs. As for using a DMM to set gain, you would go with the RMS rating of the amp. http://www.the12volt.com/caraudio/woofer_c...sp?Q=2&I=12 05 xB - (2) EVIL 18s - (2) BC3500s - NO WALL Channel 1: http://www.youtube.com/k3n12ock Channel 2: http://www.youtube.com/MrK3n12ock2 Link to comment Share on other sites More sharing options...
kl0wn Posted January 5, 2010 Report Share Posted January 5, 2010 You can't bridge a 1 channel amp. The speaker terminals are already wired together internally. You just have an extra +/- for easier wiring. But if I am reading that first paragraph correctly, you are seeing a 1 ohm load. Just check it with a DMM to make sure if you are worried about it. 06 Mini Cooper S Sundown, SoundQubed Cadence, XS Power 151s Sealed 155s Outlaw Windshield @ 37hz Link to comment Share on other sites More sharing options...
Ndnkobra Posted January 5, 2010 Author Report Share Posted January 5, 2010 You can't bridge a 1 channel amp. The speaker terminals are already wired together internally. You just have an extra +/- for easier wiring. But if I am reading that first paragraph correctly, you are seeing a 1 ohm load. Just check it with a DMM to make sure if you are worried about it. Alright thank you, that makes ALOT more sense to me. I'll make sure to check it with a DMM. Now that the first question is out of the way, all thats left is that second question thats been bugging me. So i would just take the sqrt of 1200W, which is 34.6V. Link to comment Share on other sites More sharing options...
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