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<blockquote data-quote="hardhittinchevy" data-source="post: 2828638" data-attributes="member: 570919"><p>Hey man I hope I can help you out. I have an &#039;00 Silverado with the amp youre running, Colossus II with 1 12&quot; RE XXX. I have an Iraggi 300a dominator series alt. with all my grounds done; battery negative to chassis, alt positive to battery positive, chassis to engine block for the front. For the amplifier, I grounded it to the cab with a blot (if your installer uses sheet metal screws, slap him in the face) and i don&#039;t know if you all know this, but if you own a truck like mine you should know that it sits on 4 rubber bushings. Rubber=bad ground so keeping this in mind, a very good idea is to run go under the car where the threads of the bolt that grounds your amp to the cab, and then take a piece of 1/0 and ground from that bolt to the frame. I have a yellow top under the hood and with the new alt you can crank it pretty high before your voltage drops to 12.5. Any lower than that and your Colossus goes into protect mode. SO what I did was i went out and bought an Odyssey PC2150 *great f-ing batt.* and ran a length of 1/0 alll the way to the bed of the truck where the batt is and then grounded it to the frame. Sorry if it got a little wordy, but it solved all my voltage problems. My XXX is a dual 2 ohm configuration so since the Colossus is not stable at 1 ohm when bridged so make sure you dont run that ish at 2 ohms to get all 3200w because i only get 2000 //content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif pm me if you need any advice bro</p></blockquote><p></p>

[QUOTE="hardhittinchevy, post: 2828638, member: 570919"] Hey man I hope I can help you out. I have an '00 Silverado with the amp youre running, Colossus II with 1 12" RE XXX. I have an Iraggi 300a dominator series alt. with all my grounds done; battery negative to chassis, alt positive to battery positive, chassis to engine block for the front. For the amplifier, I grounded it to the cab with a blot (if your installer uses sheet metal screws, slap him in the face) and i don't know if you all know this, but if you own a truck like mine you should know that it sits on 4 rubber bushings. Rubber=bad ground so keeping this in mind, a very good idea is to run go under the car where the threads of the bolt that grounds your amp to the cab, and then take a piece of 1/0 and ground from that bolt to the frame. I have a yellow top under the hood and with the new alt you can crank it pretty high before your voltage drops to 12.5. Any lower than that and your Colossus goes into protect mode. SO what I did was i went out and bought an Odyssey PC2150 *great f-ing batt.* and ran a length of 1/0 alll the way to the bed of the truck where the batt is and then grounded it to the frame. Sorry if it got a little wordy, but it solved all my voltage problems. My XXX is a dual 2 ohm configuration so since the Colossus is not stable at 1 ohm when bridged so make sure you dont run that ish at 2 ohms to get all 3200w because i only get 2000 [IMG]//content.invisioncic.com/y282845/emoticons/frown.gif.a3531fa0534503350665a1e957861287.gif[/IMG] pm me if you need any advice bro [/QUOTE]

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