Shotta76 Posted November 23, 2008 Author Report Share Posted November 23, 2008 (edited) Well, realistically speaking 2000W at the voltage setpoint of your FJ is going to be around 150 amps, just for the amp and at least 70/80 amps RMS at normal volumes... A battery will help but I know from experience on those Toyotas (on my own truck) that you will have voltage issues.. 100 Amps on that FJ is barely enough just to run the vehicle... I'm not suggesting you need to go 200+ amps, but you definitely need more than the 100 amps you have... Rob I'm going to get the big 3 done once my batteries come in. Once I get every thing set up I'll test it out to see how bad the voltage drops are. If they are terrible I'll get a ohio gen 200 amp alt. A local audio shop will order and install. Edited November 23, 2008 by Shotta76 Quote 07 Toyota FJ Cruiser 2 18 inch 08 Fi Btl's 2 SAZ-3000D 2 Alpine MRP-F300 Highs amp 3 Pairs of Alpine SPS-69C3 Highs Kinetic Hc 2400,1400,& 3800 250 amp Mechman Alt Alpine IXA W-404 H/U Link to comment Share on other sites More sharing options...
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