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pac maz2 (audio)T-harness weak signal
Hey, all, I have a 2016 M6 GT that I am working to get my sub installed in. I bought the PAC AOEM-MAZ2 T-harness to install an amp. It connects to a factory harness and then has RCA and a remote wire that comes out. It installed easily enough, but it seems that the signal is weak. I got it to sound pretty good, but it took turning the dials up way more than I would like(Gain up all the way on the PAC harness, gain up all the way on the amp, and bass boost on the amp nearly half way, which seem like no-nos for me).
Here is my setup(forgive the old-school nature, I have lots of good,old equipment):
Phoenix Gold Xenon x600.1 amp
Infinity Perfect 12.1 Subwoofer
Ported box, ~1.75 Cu/ft @ ~32-34Hz if I recall(I built it over 10years ago)
Anyway, the amp is rated at 600w rms, and some birthsheets showed it upwards of 700-800w RMS. It seems that with that kind of power in a ported box with bass boost on that it should be stronger. It sounds good, but it doesn't seem to be pushing the sub unless I really crank the volume. In my previous car, I had the same amp to an Image Dynamics IDMAX 12 sealed, and it was significantly louder than this ported setup. I also had it off of a higher end pioneer head unit, which makes me think that the output signal is very low the way I have it set up with the PAC T-harness.
I do need to put in thicker amp wiring, but that would be a small percentage improvement.
Any thoughts? Anyone else use this and feel the same way? Is there any way to increase the voltage or signal via the PAC?