what should I set the HPF and LPF to... I have no idea if I am suppose to set these to make better sound or what? Im running Infinity Reference speakers back and soon to be front if that makes a differnce...
thanks

 

LPF=low pass filter meaning all frequencies above your setting will be filtered out this is used on subs.
HPF=highpassfilter and filters all sound above your setting and is used for mids and tweets

I would set the dash speakers at 125htz whith the HPF on and only use a HPF on the rear speakers if you don't have a sub.

 

WOW! I had the HPF set to off and my rear speakers would always sound like there was a bunch of distortion....and then I set the HPF to 125mhz and it cleared them up......

why is that? I also set the LOUD to ON....

 

LPF = Low Pass Filter = All below these Hz is played. Anything above is cut out.
HPF = Hi Pass Filter = All above this is played. Cuts out all Hz below.
Cleared up your 6x9's, cause they aren't playing the super low stuff (they shouldn't anyway)

 

I would also shut off the loudness feature. That usually adds distortion to the system.