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ps i am one of the few whom actually used connectors instead of craming the wire in their

how should i wire it...run both tweets to one channel and the 6.5's to the other?

Do your amps have on board xovers... if so gank the external and run the one build into the amp and see if that takes care of the problem. It does sound like something is loose though. I would check that where the speaker wires connect to the amp there are no loose connections or the possibility of the wires touching... I've seen that happen a lot because people tend to not use a spade connection to the set screw and just shove wire in there.

i've checked the voltage and with the lights on and the stereo cranked im getting between 12.8 and 13.2....i also put my new head unit in and guess what? it still does it...although it is much crisp and cleaner...i really think somethings up with the crossovers....i mean what else could it be...everythings been replaced from the speakers back...could moisture get into them and cause this kind of problems?...they are in the doors and when i replaced the wiring, the terminals were rusted

Time to bust out the dmm and start tracking things down when it does it.
Get a buddy over there and start checking for the drop off when it does it, maybe start at the rcas, could even be a bad pair, then work your way through the rest till you track it down... I know it sounds like a pain, but sometimes you just gotta start chasing.

i've bypassed it running the rca's straight to the amp and it still does it

Another thing to check, test out the crossover with a dmm, it being an older unit, maybe the problem right there too.

ok, My 4 channel amp is an
AMERICAN BASS SQ 440 Amplifier
Power Output (DC 14.4V):
RMS @ 2 Ohm, Stereo: 70W x 4 Ch.
RMS @ 4 Ohm, Stereo: 50W x 4 Ch.
RMS @ 2 Ohm, Mono: 125W x 2 Ch.
RMS @ 4 Ohm, Mono: 100W x 2 Ch.
S/N Ratio: >100dB
THD (IHF-A): 0.02%
Channel Separation: >55dB
Input Sensitivity: 0.15V – 5V
Input Impedance: 47K Ohm
Slew Rate: 10V/Usec
Damping Factor: 200 @ 4 Ohm
Fuse Rating: 20A x 2
Dimensions (in inches):
Width: 9.54"
Height: 2.13"
Length: 11.02"
Features
MOSFET Power Supply Amplifier
Gold Plated Brass Screw Set Terminals
12dB/Oct. Crossover - Variable High Pass Crossover (30Hz ~ 500Hz) - Variable Low Pass Crossover (30Hz ~ 500Hz)
High/Low Level RCA Inputs
5-Way Protections
Power and Protection LED Indicators
2 Ohm Stable Circuits
Soft Start/Mute Circuit
Tri-Mode Output Configurations

In the front doors i have polk db6500's
In the rear I've got 6 x 9 kickers...
i've got the fronts dialin in through an old audio art crossover

so the way its wired would be ....HEAD UNIT to crossover to amp...the speaker wires were ran up to the dash and through the stock wires.....soon i could hear shit out of the components and decided it was time to run new wire for it all...so now it runs straight from the amp to the actual speaker crossover....

the popping in the tweaters turned out to be a different set that i had installed in my dash....and it was because i had the gain up a bit to high...(i was running just those tweets off an old 1000watt sony amp i had lying around...

not that it matters but im also running an american bass class D 1000 watt amp running 2 alpine type r 12's....thanks in advance

I guess the biggest question here is what amp are you running and which polk 6.5 components, wiring and etc... all this will give all of us a better idea of your overall system and what could be the problem.
If you're getting a popping from the tweets it definately sounds like a crossed or loose wire somewhere.

P.S. Good choice on picking the right car audio forum... stick around and you'll probably learn a lot

no, because your amplifier can take an input that's a broad, broad range. What is the minimum input on the amp? Probably about 1/8v to 1/4v.

If anything, having a low preamp voltage will prevent you from clipping your amp - turning your gains down lower than you need to actually is healthier for your system technically - granted you won't be as loud as you are capable of being, but for troubleshooting this eliminates problems, it doesn't create them.

The ONLY benefit of a higher preamp voltage is to work as a band-aid to overcome any induced noise floor - noise induced into your RCA cables.
That's the ONLY benefit. It doesn't make your amp work any less hard, or make it make any more power.

I'm curious what you've been reading about preamp voltage? Lord knows it's one of those topics that's a magnet for, and is riddled with myths and fantasy...