tdsa23 Posted February 2, 2010 Report Share Posted February 2, 2010 I am running 700RMS with an stock alt 90amps and yellow top battery but my volts drop when I turn it up what would be the cheapest way to keep my volts up with out spending hella money? XS Power D5100, 2 D2700s, & 2 D975s MechMan 220a Alt DC 5K Kicker 650.4 2 12 Ascendant Audio Mayhem's Pioneer DEH-P7200HD Rockford Fosgate 3sity.1 Build log: https://www.stevemeadedesigns.com/board/topic/166792-88-nissan-maxima-trunk-build/#entry2430899 https://www.stevemeadedesigns.com/board/topic/191439-lexus-is300-fi-crescendo-shca-rf-pics/ Link to comment Share on other sites More sharing options...
kl0wn Posted February 2, 2010 Report Share Posted February 2, 2010 Have you done the big 3? If not, go do the big 3 in 1/0 wire. That should help out a lot. If it's needed, throw an extra small yellow top in the back. 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...
drumminian Posted February 2, 2010 Report Share Posted February 2, 2010 big 3! I have a stock 90 amp alt and I was running 1200w never saw below 12 on full tilt if you wanna upgrade to more wattage your gonna need ah/o but not for 700w Alpine CDA-9887 15" FI BL JBL BP1200.1 Rockford Fosgate p142 4" front Rockford Fosgate p1S652 6.5" rear Optima D35 yellow top under hood Big 3 all in a 1997 Toyota Tercel Link to comment Share on other sites More sharing options...
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