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<blockquote data-quote="thinkbig" data-source="post: 326101" data-attributes="member: 549715">You should definagely upgrade the power wire and the ground.&nbsp; Uprading those two, as well as your factory batter, can make a noticable difference in voltage to your equipment.&nbsp; You will suffocate your amplifier&#039;s current draw if you don&#039;t have large enough power wire.&nbsp; If you can get up to around the 13 volt range to your amplifier, you should see a decent increase in output fromt he amplifier.I think you should be quite happy being in the upper 140&#039;s with a single D2.&nbsp; That VERY high for a single 12&quot; sub.&nbsp; I&#039;m not sure how that Epic compares to other meters such as Audio Control or Termpro, but it still sounds like you have very good ouput for that single D2.I doubt your power loss is going to effect you that much, because you are already giving that sub enough power, depending on the enclosure, to near its limits.</blockquote>

[QUOTE="thinkbig, post: 326101, member: 549715"] You should definagely upgrade the power wire and the ground. Uprading those two, as well as your factory batter, can make a noticable difference in voltage to your equipment. You will suffocate your amplifier's current draw if you don't have large enough power wire. If you can get up to around the 13 volt range to your amplifier, you should see a decent increase in output fromt he amplifier. I think you should be quite happy being in the upper 140's with a single D2. That VERY high for a single 12" sub. I'm not sure how that Epic compares to other meters such as Audio Control or Termpro, but it still sounds like you have very good ouput for that single D2. I doubt your power loss is going to effect you that much, because you are already giving that sub enough power, depending on the enclosure, to near its limits. [/QUOTE]

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