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One of the things that has had me curious... I have read through a lot of audio threads on this forum and a few other posts on other forums and what I found odd was that other 6th Gen SS1LE owners used LOC for their subwoofers by tapping into the rear panel speakers and stated they got plenty of bass, while the general consensus is that the rear speakers are not getting a full signal.
So today I did some tests with a tone generator and RTA and SPL analyzer. So the rear panel speakers are definitely getting the signal. I was able to play test tones ranging from 1K-60hz and even these limited speakers generated the tones (obviously the drivers are limited). But what is happening is the signal SPL is reduced by at least 15db. So yeah, I agree it's not getting the full signal strength but the speakers are getting the full frequency range.
So this explains why some folks said they had plenty of bass, because their subwoofers are powered and able to compensate for the reduced SPL's.
So I may start by tapping the rear panel speakers as this will ensure no warning chimes or other garbage that are produced by the fronts get carried to the sub, and it will be an easier install and I don't have to cut back the harness for the fronts.
If after this my sub is not playing loud enough, I will tap the fronts and be done with it, but I can confirm 100% that the full frequency spectrum is being played to the rear panel speakers. My amp puts out 500watts RMS (dyno tested) so I don't think it will be a problem to add enough bass to my liking. I am not a bass head for car audio.
On my GT350, I was able to use a tool called Forscan to flatten the factory EQ. I wish I could do this with the Camaro because they have done something to lower the SPL of the rear panel speakers through EQ.
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