what do u use to keep bass out of your speakers?

what do u use to keep bass out of your speakers?

I am going to be adding a sub to a stock Head Unit.... what do u guys think about using passive crossovers? or should i turn the bass down on the head unit and the gain on my amp up??.............thanx

There are several ways to do it. The eaiest way is active the built-in High Pass of your headunit, and of the amp. That means the headunit or amp will filter out the bass before sending the signal to the speakers.

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the STOCK head unit has a HP crossover... i dont think so?... i dont think u understood my question... i am adding an amp and a sub to my stock head unit... and i dont want the 4 stock speakers to play any bass....

ok, so passive crossover seems to be the only choice.

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ok ... thanx

You can add a 4.7uF electrolytic capacitor in SERIES on each speaker to filter the frequencies below 50Hz. They cost about .50 cents each on Radio Shack. This way you can turn up the Volume and only the SUB will get bass-- the Speakers won't distort because they won't be getting BASS frequencies.

For a cutoff frequency of 50 Hz with a 4 ohm speaker you're going to need a 795 uF capacitor (non-polarized), not 4.7 uF - that'll give you a cutoff frequency of 8 kHz!!! Great value if you want a high pass filter for tweeters.

whoa!!! sorry my bad! thanks for pointing out. I'm so used to using 4.7uF for tweeter applications. ^^ What he said ^^

The bigger question is is it really worth doing? That's a big capacitor and it's not exactly like the stock speakers are going to respond to anything below 50 Hz anyway.

NO it's not worth doing, nor it is the Professional way of cutting frequencies. Just answering his question straight

The question that is begging to be asked is-- Why not run the drivers at FULL range?

Exactly!

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so then ur saying i shouldnt use any crossovers on the speakers !?!?!?! that would sound terrible.... and i have seen crossovers... they are pretty small

Why not just get an equilizer? a good site for audio stuff is millionbuy.com i got my amp and sub there for 175.

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nevermind ill just get some passive crossovers at best buy or radio shack and wire them with the + speaker wire.... that should work fine

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If the crossovers are small it's because they are desinged for tweeters and have a crossover frequency somewhere between 3000 and 10000 Hz. Make sure that whatever you buy it will give you a crossover frequency around 50 Hz at an impedance of 4 ohms (for the fronts) and 6ohms (for the back).

Still, I woudn't bother even if you can find a crossover like that. You need them with tweeters to prevent damage to them from low frequency energy, but that's not just an issue with what you are trying to do.

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oxymoron do u have a sub and amp? if so, how do u keep bass out of ur speakers? and do u think it would be ok to turn the bass on the head unit down and then just turn the gain on the amp UP ?

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Yes, I have a sub and an amp, but I also have an amp for the four full-range speakers. If you're just adding a sub and using the stock speakers with the head unit's amplifier, I wouldn't worry about trying to filter out low frequencies from the stock speakers. They don't produce any bass and although installing crossovers will decrease the loading on the head unit at low frequencies, it honestly won't make a noticable difference. Keep it simple.

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k thanks for the help

get a new head unit like an alpine that has built in lp and hp crossovers.. the only other way is to do what the other guys recommended as far as adding capacitors in series with the speakers.. you can find them aka "bass blockers" at crutchfield.. but IMO they make your music sound like crap.. you end up with a system that has no midbass unless you cross your sub off real high like 200hz or so.. which messes up the imaging..