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gchapman Newbie
Joined: 25 Apr 2005 Posts: 13 City: Houston
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Posted: Jun 21, 2005 1:38 pm Post subject: Grounding the Amp / Double Barrel monsters |
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Just purchase the Double Barrels for the Monster Tower. Where do I send the ground wire? Back to the battery? The amp location is close to the stereo..can I use the same ground as the head unit? Any help is greatly appreciated. |
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Brit Rider Wakeboarder.com Freak
Joined: 29 Mar 2004 Posts: 3347 City: Cheshire, England
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Posted: Jun 22, 2005 9:14 am Post subject: |
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Ground the Amp on the Negative post of your battery.
Don't use the same ground as the stereo as it won't be able to support the load. _________________ www.AxisBoats.co.uk | www.Malibu-Boats.co.uk |
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gchapman Newbie
Joined: 25 Apr 2005 Posts: 13 City: Houston
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Posted: Jun 22, 2005 9:50 am Post subject: |
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thanks, any ideas about battery life with amp load? |
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Brit Rider Wakeboarder.com Freak
Joined: 29 Mar 2004 Posts: 3347 City: Cheshire, England
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Posted: Jun 23, 2005 2:32 am Post subject: |
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depends on amp and battery.
Ideally your alternator should be able to support the load.
i.e if your amp is throwing out 500 watts it will be roughly using 41 amps.
if you have a 60 amp alternaotr and a newish battery then you are totally fine. I wouldn't use the stereo for long periods with the engine off though. _________________ www.AxisBoats.co.uk | www.Malibu-Boats.co.uk |
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bkw4287 Criminal
Joined: 18 Mar 2003 Posts: 73 City: Central FL
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Posted: Jun 23, 2005 7:31 am Post subject: |
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I've got a brand new battery (2005 boat) and a Kicker 700.5 rated at 900rms power. I'm pushing 4 6.5's, 2 6.5 tower speakers, and a 12" sub off the amp so it is under a decent load. I can get about 4 hrs of play time with the engine off before my battery gets to the danger point. |
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Brit Rider Wakeboarder.com Freak
Joined: 29 Mar 2004 Posts: 3347 City: Cheshire, England
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Posted: Jun 23, 2005 7:38 am Post subject: |
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bkw4287, 700RMS power
4 x 75rms + 1 400rms sub section
Its the 4 channels that munch the power.. your sub section is MOSFET i believe (Class D) so is pretty efficient. _________________ www.AxisBoats.co.uk | www.Malibu-Boats.co.uk |
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bkw4287 Criminal
Joined: 18 Mar 2003 Posts: 73 City: Central FL
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Posted: Jun 23, 2005 11:36 am Post subject: |
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Brit Rider wrote: | bkw4287, 700RMS power
4 x 75rms + 1 400rms sub section
Its the 4 channels that munch the power.. your sub section is MOSFET i believe (Class D) so is pretty efficient. |
Yeah factory specs say 700rms, but I got a birth sheet with my amp that had it rated at 900 rms. Thats why I said 900.
To be exact I'm running everything at 2ohm so my factory specs are
4x85 and 1x420 rms mono. |
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gchapman Newbie
Joined: 25 Apr 2005 Posts: 13 City: Houston
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Posted: Jun 29, 2005 5:01 am Post subject: |
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thanks for the replies. 1st day on lake with speakers. 3 hours before battery got to what I consider the danger zone. thanks again. |
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