i used to have my sub set on 50hz +2 and the HPF set on the 125hz setting, so it removes all low bass frequencies and stops your tweeters sounding bad. (HPF means all frequencies above that selected will pass) if i wanted to be silly i would just change the sub to 80hz +6 and it would rattle the car to pieces. (anything below 50Hz is the best bass to be hearing really)

It's just how far you can turn it up/down, -6 being the furthest it will go down, and +6 being the furthest it would go up. I always assumed (so I could be wrong) that going up or down on the sub setting by 1 turns the bass up/down by the same amount as when you turn the volume up/down by 1.
Richie could confirm this, though.

any?

nope its on sub settings..wheres richie when u need him :lol:

bass boost?

whats the =6 down to -6 on each of the diff freqs mean? ie 50 +6+5+4+3+2+1 0 -1 -2 -3 -4 -5 -6?

I believe it's like this...
The sub settings allow you to turn down/up the sound at the frequencies 50,80,125hz. HPF (High Pass Filter) sets the frequency at which to send all sound under it to the sub instead of the higher range speakers. Input level, I'm fairly sure you're correct, and bass boost where you want it.

I could be wrong though.

im new to ICE and just got a JBL sub/amp combo, but im unsure how to set the functions on the head unit
its a pioneer 6500r

the sub settings have got 50, 80 and 125 with each 1 having +6 down to -6
whats that mean and whats the best setting?

also HPF i have got either 50,80 or 125, which 1 is best to set

on the amp i have input level is that the gains?

also bass boost where shall i set that?
:thumbs::thumbs::thumbs: