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<blockquote data-quote="loopkiller" data-source="post: 5725296" data-attributes="member: 601690">The issue with the single up front battery is that it will be to small and too far away from the amps to give you enough power. If you are worried about the 1/2 volt drop with the isolator, wait until you see your volts drop more than twice that much. You are going to for sure need more than one. The stock battery in that car is likely a group 34, which is somewhat small. One of those will not run 1500W RMS alone. At that point, you will need to buy another matching one for the rear. Let&#039;s look at the costs involved here:Option 1 - Dual XS D3400$240 each battery--------------$480 totalOption 2 - 9A31 + Isolator$175 each battery$100 isolator$150 MLA Adapter--------------$425 TotalIt would be cheaper and would be much more powerful to take option #2. Do whichever you want, but I just showed you that #2 is cheaper than the &quot;easy&quot; way. There is no doubt in my mind that option #2 would by far exceed the ability of option #1.</blockquote>

[QUOTE="loopkiller, post: 5725296, member: 601690"] The issue with the single up front battery is that it will be to small and too far away from the amps to give you enough power. If you are worried about the 1/2 volt drop with the isolator, wait until you see your volts drop more than twice that much. You are going to for sure need more than one. The stock battery in that car is likely a group 34, which is somewhat small. One of those will not run 1500W RMS alone. At that point, you will need to buy another matching one for the rear. Let's look at the costs involved here: Option 1 - Dual XS D3400 $240 each battery -------------- $480 total Option 2 - 9A31 + Isolator $175 each battery $100 isolator $150 MLA Adapter -------------- $425 Total It would be cheaper and would be much more powerful to take option #2. Do whichever you want, but I just showed you that #2 is cheaper than the "easy" way. There is no doubt in my mind that option #2 would by far exceed the ability of option #1. [/QUOTE]

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