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<blockquote data-quote="RoYALbLUE08" data-source="post: 8380868" data-attributes="member: 637100">Hey guys I need some advice on what to do to bring my voltage back up.&nbsp; I have a 12 SSA XCON d2 sub with crescendo bc2000 amp for the lows and hybrid audio midrange, rainbow tweeters ran active on a crescendo concerto c1100.4 for the highs.My car is more of a show car so I modded it in every way, from audio, to exterior to interior to full performance.the issue is my voltage drops to around 11.8 alot and usually stays around 12.2-12.9 most of the time.i have the big 3 and an optima yellowtop under the hood. also i have underdrive pulleys installed which might be contributing to the 11V range drops, but even before i installed the pulleys it was always around 12.1-12.4when i drive it is extremeley low, but when i throw the gear into neutral, it bumps up to around 13.2-13.5. i constantly have to put in neutral and tap the gas to keep the voltage a little higher.so my question is, what is the best thing to do from here? is it adding another battery? or getting a high output alternator? I would rather avoid the second battery as i am trying to keep the weight down in my car.Oh yeah, one more thing. I do not blast my music to volume to full RMS volume all the time (30/40) on my radio. I usually listen to volume 15-20. I set my volume and gain using the DMM and using the 3/4th method.any help would be greatly appreciated</blockquote>

[QUOTE="RoYALbLUE08, post: 8380868, member: 637100"] Hey guys I need some advice on what to do to bring my voltage back up. I have a 12 SSA XCON d2 sub with crescendo bc2000 amp for the lows and hybrid audio midrange, rainbow tweeters ran active on a crescendo concerto c1100.4 for the highs. My car is more of a show car so I modded it in every way, from audio, to exterior to interior to full performance. the issue is my voltage drops to around 11.8 alot and usually stays around 12.2-12.9 most of the time. i have the big 3 and an optima yellowtop under the hood. also i have underdrive pulleys installed which might be contributing to the 11V range drops, but even before i installed the pulleys it was always around 12.1-12.4 when i drive it is extremeley low, but when i throw the gear into neutral, it bumps up to around 13.2-13.5. i constantly have to put in neutral and tap the gas to keep the voltage a little higher. so my question is, what is the best thing to do from here? is it adding another battery? or getting a high output alternator? I would rather avoid the second battery as i am trying to keep the weight down in my car. Oh yeah, one more thing. I do not blast my music to volume to full RMS volume all the time (30/40) on my radio. I usually listen to volume 15-20. I set my volume and gain using the DMM and using the 3/4th method. any help would be greatly appreciated [/QUOTE]

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