is there a way of changing the EQ frequencies without effecting the other frequency ranges. I noticed that when I change one frequency the others are affected too. Stupid question:Is there a sound processors in this unit? I am assuming no since I have seen no settings for it (for example BBE).

Nope, what you see is what you get. No backdoor settings or anything of the like that anyone has discovered. Just keep playing with it; you can make a good sound out of it just keep fooling with it.

I'm recalling this from my old audiophile days:

The type of equalizer that is being used in the Pioneer units is called a parametric equalizer. With a parametric equalizer, you can choose:

1. The frequency to boost or cut

2. How much to boost/cut the frequency

3. How wide the boost/cut should be around the frequency you picked.

This is actually much more powerful than using a graphic equalizer, which most people are familiar with, and does have a very good application in car stereos, as one of the issues with getting an even sound in a car is dealing with resonances. In fact, when you are twiddling the 400 Hz band, for example, on a graphic EQ, you actually are affecting the frequencies around it to some extent, even though the controls don't reflect this.

When adjusting the equalizer, if you want to narrow the width of the peak, you can just adjust the "Q" setting from Wide2 to Wide1 to Narrow1 to Narrow2, which narrows down the peak. But you'll get a much more natural sound with the wider settings.