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amps in protection


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bradleyjo8 
Member - Posts: 4
Member spacespace
Joined: September 24, 2008
Location: Michigan, United States
Posted: September 24, 2008 at 11:33 AM / IP Logged  

What I got... 2 ma audio hk 1398 amps 2- 10" mtx 9500 4 ohm dvc subs wired at 2 ohms.  0 ga ran to back to distr block 4 ga to amps which are bridged to a 2 ohm mono load, Alpine deck and changer.   My problem is when I turn up the volume the amps will go into protection for a few seconds then will resume, my thought is that the voltage is droping too low causing this.  voltage goes from 13 volts to 10 volts.  My guess is I will need to add a battery?  Does anyone know at what voltage the amp is set at to go into protection.  All is in a fully loaded '06 trailblazer ext.  I am new but have been looking a long time.  I will put pics of my set up soon.  Any help will be awesome.

Ahh sweet BASS
DYohn 
Moderator - Posts: 10,741
Moderator spaceThis member has made a donation to the12volt.com. Click here for more info.spaceThis member has been recognized as an authority in Electrical Theory. Click here for more info.spaceThis member has been recognized as an authority in Mobile Audio and Video. Click here for more info.spacespace
Joined: April 22, 2003
Location: Arizona, United States
Posted: September 24, 2008 at 12:02 PM / IP Logged  
Yes, sounds like your system voltage is dropping too low.  Is the engine running when the amps do this?  You almost certainly need a high-output alternator for that large a system, not additional batteries.  Also, make sure your amplifier gain is set correctly (read and follow the "How to set your gains" sticky post.)
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bradleyjo8 
Member - Posts: 4
Member spacespace
Joined: September 24, 2008
Location: Michigan, United States
Posted: September 24, 2008 at 12:41 PM / IP Logged  

Oh boy $$$.  I couldn't find any on ebay for my year blazer.  What size (and where) should I get?  My amps combine for a total 320 amps,  I also have the dvd, heated seats and all.  I planned on doing the big 3 upgrade soon would this help much untill I can swing for a new alt. Thanks

Ahh sweet BASS

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