Daniel Joseph Bragenzer Bond Posted April 12, 2012 Report Share Posted April 12, 2012 hi everyone. I recently installed some new subs and amp. 2-15" RE Audio XXX and a MA Audio HK-4000D. Heres the problem.Amp is going into protection mode when i open it up all the way due to (as far as I can tell) voltage dropping.It holds 13.3v most of the time but certain tones drop it below 12v shutting it down. Ive done the Big 3. Got 3 Kinetik batteries .2 HC800's under the hood and a HC3800 in the trunk. currently running stock alternator 120 amp. there is no available H.O. alternator made for my car(2002 hyundia XG350L) looking into having my stock alt beefed up. there is 1\0 gauge rockford fosgate power cable throughout. Also something weird,when the trunk is open it will shut down at half volume.trunk closed almost never shuts down... Any Ideas?? Thanks Quote Link to comment Share on other sites More sharing options...
Daniel Joseph Bragenzer Bond Posted April 12, 2012 Author Report Share Posted April 12, 2012 (edited) Edited April 12, 2012 by Daniel Joseph Bragenzer Bond Quote Link to comment Share on other sites More sharing options...
rocking.that.eclipse Posted April 12, 2012 Report Share Posted April 12, 2012 Did you email mechman? Quote Link to comment Share on other sites More sharing options...
Daniel Joseph Bragenzer Bond Posted April 12, 2012 Author Report Share Posted April 12, 2012 they quoted me a 220 amp rebuild for $530..thinking real hard bout getting it Quote Link to comment Share on other sites More sharing options...
rocking.that.eclipse Posted April 12, 2012 Report Share Posted April 12, 2012 Try topping your batteries off every now and then too. Quote Link to comment Share on other sites More sharing options...
Daniel Joseph Bragenzer Bond Posted April 13, 2012 Author Report Share Posted April 13, 2012 Would it help to ground the amp strait to the battery insteed of to the frame? Quote Link to comment Share on other sites More sharing options...
FeArZ Posted April 13, 2012 Report Share Posted April 13, 2012 Would it help to ground the amp strait to the battery insteed of to the frame? It's always recommended to ground back to the batt. I would especially do it if it's a unibody vehicle. Quote 2009 Tahoe 2000bc Cresendo POWA Need 3500 2 Sundown Zv3 18 high rolled sexiness dual alt bracket with Singer alt(coming soon) Mtx Q(not sure if I'm going to use) Knu wire and RCA's Bass Head Bands Oh and a few pairs of Jordan's Link to comment Share on other sites More sharing options...
Daniel Joseph Bragenzer Bond Posted April 13, 2012 Author Report Share Posted April 13, 2012 ok ..currently i have the amp grounded to the frame by it self..the Battery in the trunk is grounded the frame in a different spot and there is no ground from front batteries to the rear battery. So should i change it to where the amp ground goes to the rear battery ground terminal, rear battery ground to the frame and to the batteries in the front? sounds better to me. think it will help? Quote Link to comment Share on other sites More sharing options...
jrchevy87 Posted April 13, 2012 Report Share Posted April 13, 2012 it deffinately will help, i cant say how much with the stock alt but extra grounds are never a bad idea especially on newer cars with the new aluminum alloys and thinner sheet metal being used Quote Jeep Wrangler TJ Hardtop Build Link to comment Share on other sites More sharing options...
Daniel Joseph Bragenzer Bond Posted April 13, 2012 Author Report Share Posted April 13, 2012 anybody else got an opinion on this? could my grounds be the cause of all this votage drop? or do i simply just need a high output alt.. Quote Link to comment Share on other sites More sharing options...
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