Ok, I just bought a brand new Lexus IS-F (good-bye Nissan GT-R ) with the Mark Levinson stereo. I've already torn the car apart and have purchased the following items:
Polk Audio MM6501 component speakers
Polk Audio PA D5000.5 Amplifier
JL Audio 12" W3 (2Ohm) Subwoofer
This is the biggest car audio project I've ever attempted. I have alreay figured out all of my signals coming from the stock Mark Levinson amp, so they are ready to be wired into the Audiocontol LC6i when it arrives.
So, I've been reading on here a lot and have learned that "bi-amping" the MM6501's might be better than just running, both, the midwoofer and tweeter through the supplied crossover. I'm toying with running the midwoofers off the front channels of the D5000.5 and the tweeters off the rear channels. I would also use the supplied crossover on the tweeters only.
Here's where I get confused.... It seems the D5000.1 has a band pass filter (BPF) on the front channels only and range from 40Hz to 4000Hz. I'm just trying to figure out if I should run the midwoofers through the band-pass or simply run the high-pass from aroung 60Hz? Or should I just set them up they way they were supposed to be and use the supplied crossover for both, the midwoofers and the tweeters.
FWIW, this sight has really helped me to this point! I'm getting there...just need a bit more advice. Thanks!