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> Alternator Output not keeping up with audio system
Kansas 914
post Oct 25 2011, 11:14 AM
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I installed a Boston Acoustics GTA-504 and since install I have not been able to charge the battery during long drive with the music cranked up. I really thought the 55AMP alternator would have been fine for the small amp.

I am running 6.5" separates on 2 channels and bridged the other 2 channels to mono for the sub. All speakers are 4 ohm.

There are two 25A fuses on the amp and I added a single 60A in-line at the battery for the power to the amp. No fuses have ever blown - but I wondered if the alternator is actually cranking out 55 Amps. If I don't drive with the music on it works and charges the battery fine. I think I might just install a bus alternator (75Amps) unless others think it is a mistake.

Link to install manual: http://www.bostonacoustics.com/PDFs/manual..._2_4_Ch_Man.pdf

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Kansas 914   Alternator Output not keeping up with audio system   Oct 25 2011, 11:14 AM
kg6dxn   You can try adding additional grounds from the bat...   Oct 25 2011, 11:24 AM
Kansas 914   You can try adding additional grounds from the ba...   Oct 25 2011, 11:27 AM
Vacca Rabite   Lots of things here Corrosion at connectors force ...   Oct 25 2011, 11:26 AM
Kansas 914   Lots of things here Corrosion at connectors force...   Oct 25 2011, 11:30 AM
kg6dxn   You need to add up all the differet demands from y...   Oct 25 2011, 11:40 AM
stugray   Who drives a 914 while NOT listening to the engine...   Oct 25 2011, 01:12 PM
Kansas 914   Who drives a 914 while NOT listening to the engin...   Oct 25 2011, 03:51 PM
Spoke   Not charging the battery with the amp can be teste...   Oct 25 2011, 01:39 PM
messix   the head lights draw more power than that amp woul...   Oct 25 2011, 02:09 PM
Rod   That amp should not flatten the battery whilst dri...   Oct 25 2011, 02:29 PM
stugray   "when driving the amp takes it's current ...   Oct 25 2011, 02:47 PM
Rod   That amp will be drawing 26.6 amps when driven rea...   Oct 25 2011, 03:08 PM
Cap'n Krusty   Good luck finding anything other than the 55amp ve...   Oct 25 2011, 03:28 PM
Drums66   ......What about a 911 alternator?...but I think e...   Oct 25 2011, 03:43 PM
hcdmueller   The bus/912e alt is 70amp and available from place...   Oct 25 2011, 04:02 PM
stugray   "The biggest difference I noted was when I ad...   Oct 25 2011, 04:18 PM


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