Hello all again...

Did some searching to find out what crossovers even were. I think i understand it...

My front speakers (fusion pp572) are pumping out bass and well isnt that what i bought a sub for? Id rather only hear mid/treble from them. Id think they would last longer as well. Plus i just dont like it that much for some reason.

Question is can i block the bass or most of it from the fronts? I guess i can but can i with just my HU. ITs a Kenwood 435U, it has some xover built in and i am imagining i would use the lowpass xover to block?

There are 3 xover settings on the HU...they are all set on Through.

Highpass Filter Fronts, Through, 80/100/120/150/180Hz
Highpass Filter Rears, Through, 80/100/120/150/180Hz
LowPass Filter, Through, 60/80/120Hz

All 3 filters are set on Through.

Yes i know a real xover is the way to go. I think ill get one when i amp the doors speakers, they arent loud enough and i found out i want all the power they deserve. They are only getting 22rms and they can handle 60rms i think.

 

Highpass your fronts at 80 or 100, and your rears either at through still or 80. That should set you jusssssttt right.

 

You want to set your hipass filter to a determined value (i run 60 hz for my setup). The lower the frequency, the more low bass you let through. If you run your filter too high, you might be missing out on some of the mid bass though. What this filter does is prevent frequencies lower than the set value from being passed to the speaker.

 

That's gorgeous!

_____________________
McIntosh MC207 Power Amplifier - Get the MC207 Power Amplifier catalog by McIntosh Laboratory, Inc.

 

Lol whats gorgeous?

 

Thanks for the advice all... 80Hz was good for what i want. Sounds better.

 

I'd say it's "STUNNING"
Good to see people are resourceful.

 

GENERALLY

5.25" speakers will be 80Hz
6.5" will be 60Hz/50Hz

I would check the instructions for your speakers, check the frequency range and set the crossover for the lowest value the speaker can reproduce.

 

^^^^ umm, wrong advice. You do not set a crossover based on the lowest value in the frequency range spec. A speaker does not just automatically stop producing clean sound there. It depends on where it is mounted, what amount of airpace is behind it, the amplitude of the frequency being played, the balance of the system. Asking a small speaker to reproduce the higher of the sub bass frequencies is going to end in disaster for the speaker for what he has. If the speaker had been a dedicated midbass driver and built as such to handle the abuse that amplitude in that frequency range carries, I would normally say sure, go that low. With a basic coax speaker made by <insert brand name here>, it is generally a good idea to sit back and experiment with the volume control, crossover point and your favorite tunes to see exactly where that point can safely be set to. Set it too low and while you may have bass, you will lack in volume as the speaker will distort. Set it too high and you will have more volume but lose the lower bass response. Get it just right and you have a marriage of both worlds, good sound and respectable volume. Add a sub and let the sub do the work of the big dog, that's what he's there for.

 

Most speakers I've seen perform very poorly under the rated frequency. Thats why I say not to set the crossover under that. If you want to play with the crossover, go ahead, just keep it above the freq. response.