I bought a stock sub. I was wondering if anyone knows what the amps in RMS or max on it. Does anybody have a suggestion what amp I would be comaptible using a high input that will trigger an auto shut on/off?

 

The amp on the stock Infinity Amp is 368 watts peak. Divide that by 2 for RMS (respectively) is 184 watts for 6 speakers and the subwoofer. BUT the subwoofer is wired to the rear two speakers sharing the power. SO this is the break down:


Front left speaker and dash tweeter - 46 watts
Front right speaker and dash tweeter - 46 watts
Overhead left speaker - 46 watts - Subwoofer shared
Overhead right speaker - 46 watts - Subwoofer shared

So the back of the sub has 4 wires coming out of it meaning its dual voice coil. The coils are 2 ohms each. These are wired to share the power of the rear speakers from the amp. (this is confirmed via jeep engineer on the Q/A)

So if the sub is drawing power with low ohm subwoofer channels you could say that the subwoofer is seeing 46 watts per coil in a parallel wiring scheme.

If you wired the 2 ohm wires in series you would have a 4 ohm subwoofer that could safely run 92 watts RMS safely (stock) I would even venture to say that you could run 100 watts rms (4ohm) to the sub if you wired the coils in series.

Hope I did not confuse you.

 

I know this is older but is there any info on how to do this exactly for an audio newb?

 

I'd love to hear how this might be done also, I have an amp sitting around and would love to add it into the equation I just don't want to screw up what already sounds great...Louder from the back would be a plus since I upgraded the sub but have not boosted the juice.