Switching it up

I always start around 100 or a little lower. I can fine tune it after all other adjustments have been done.

Bass on radio at -1 to 0, volume at about 3/4. Gain should be all the way down. Set bass boost to about half. Turn up the gain slowly. If you think your close, listen to it for a few minutes before adjusting again.

If you decide you want to try more bass boost, turn the gain all the way down, increase the boost slightly, then adjust gain.

I've set boosts (depending on car and sound system) between 1/2 and 3/4 with very good luck.

Just make sure you remember where your controls are set now, just in case you hate my method.

 

I would suggest keeping the high pass on to your front speakers. If it is adjustable, turn it up to a higher frequency, say about 200 Hz.

 

typically, when setting the hi and low pass x-over points, you want a little bit of a gap. this is due to the rate at which the frequencies roll off, or what is called the slope of the x-ver expressed in dB/octave. THis usually allows for better bass and midbass performance. Now, with that said, this does not ALWAYS hold true. speaker placement, and personal sound preferences will ultimately dictate the final settings.

 

Having the subs and the highs all play sub bass is a bit tricky...we get into whats called "phasing issues" Try this.....invert polarity to the subs and see if overall bass performance is better

 

And I suggest just the opposite, no high pass, unless your running a 3-1/2 of 4-inch speaker. Any other speaker should be able to handle everything. When ever I've used a high pass filter, transient response suffered. So I decided that if I need more bass, let the subwoofer do it.

If you do need a bass blocker then keep it low, no more than 40 to 80Hz. But seriously, I've never used a high pass filter on my front speakers, even my 6-1/2-inch center channel in my truck is run full range and its being driven at 180-watts RMS and its rated at 60 watts RMS. The amp gain is nearly 2/3 of the way up.

If it doesnt sound right with those adjustments, then the box and the speaker are the problem, they are not working together.

Can you get me a link to your speaker specs.

I'd like to do a little more research

 

TheViking is right about the fact that a little gap is OK. The sound will "sum" flat if the gap is set right. I've never had good luck with summing flat in a car.

Also, what I found is that if I run the front speakers full range, then even the bass sounds like its coming from the front speakers (transient response). The more high pass I use the more the bass moves away from the front speakers.

That been my experience with high pass in a car