Vinnyhimself Posted December 21, 2010 Report Share Posted December 21, 2010 in a 12 volt system do you need the VCM in order to use the 14 volt battery? i know that the vcm allows you to set a cap on voltage so i wasn't sure if its required when using the 14 volt battery Quote Link to comment Share on other sites More sharing options...
FaTbOy911 Posted December 22, 2010 Report Share Posted December 22, 2010 Ok fírst of all what are you running and yea i think you do need cause a 14volt goes up to 16 i think i might be wrong Quote Had an estimate of 6400 for an alpine/clarion setup dealer said it "should" hit around 160db with the custom boxes he was going to make for me..doubtful with so much area to move but, budget is way below that any ideas on cheaper brands for that kind of Spl setup? really didnt want to try any Boss or soundstorm, thinking Quantum figure around $150 per speaker "$1800 total" and $1700 to power it, first actual big setup for the van. New MEMPHIS CAR AUDIO build 4 15s Memphis C3 2 xs power D3100 1 xs power d3400 custom fiberglass door pannel and lots more My Build Link to comment Share on other sites More sharing options...
hdorre Posted December 22, 2010 Report Share Posted December 22, 2010 When running a 14 volt setup, you need some sort of voltage regulator. A VCM is an example of a regulator. The alt should be set to charge around 16.4 volts. Quote On 5/8/2011 at 7:38 PM, Kranny said: On 5/8/2011 at 7:35 PM, 'Maxim' said: It hurts me inside when I read stuff like this and remember you're 15 LMFAO so true Mitsubishi 3000GT (Old Build) Headunit: Pioneer 80PRS Frontstage: (2) McLaren Audio MLT-2 Tweeters & (4) PRV Audio MR Series Neo 6.5" Mids Substage: 4 15" Hybrid Subs - Tantric Motors & Sundown Softies Amps: Banda 2.4D Amp (Tweets), American Bass VFL 350.4 (Mids), and (2) Ampere 3800s Electrical :Singer 260A Alt & JY Power Lithium 2005 Chevy Colorado Ext Cab Headunit: Pioneer 80PRS Frontstage: 4 PRV 700Ti Tweets & 6 10" Delta Mids on 3000wrms Substage: 6 Fi BTL 18s in a 4th Order Walkthrough on 3 Wolfram 4500s Electrical: Singer "390" and JY Power My Official Feedback Thread Link to comment Share on other sites More sharing options...
Nathan @ XSpower Posted December 22, 2010 Report Share Posted December 22, 2010 As said above you need a way to regulate the voltage output of the alternator to charge the 14V batteries properly. 16.8V is the optimal charge voltage for the 14v batteries. Quote Link to comment Share on other sites More sharing options...
Vinnyhimself Posted December 22, 2010 Author Report Share Posted December 22, 2010 ok thankyou for the feed back Quote Link to comment Share on other sites More sharing options...
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