Crossover or Capacitor?

[Fitzy]

Hi bros, have a question on the above. What's the diff ? Can I use capacitor instead of crossover for my tweeter? Thank you.

[Coolbreeze90]

Maybe can try googling wat is a cap and wat is a crossover....

[Spinworkx]

I think you are refering to resistor instead of crossover?

Or did you really mean Capacitor? Becuase capacitor and cross overs are 2 TOTALLY different things...and i do mean TOTALLY different :)

[Fitzy]

Today when to SLT looking for tweeters. 1 shop recommend me a tweeter with cap instead of crossover. Now confused, really a noobz in ICE. Hope to get an explanation from bros here . The person also say that using cap would give a clearer sound. So which to get tweeter with cap or crossover?

Edited February 26, 2008 by Fitzy

[Spinworkx]

 

 

Edited February 26, 2008 by Spinworkx

[Headshok]

hi there

 

the capacitor acts as a high pass..

 

but the thing is, wat kind of tweeter are u using?

 

only those super cheapo tweeters come with a pi sai capacitor attached to it.

 

a cross over consist of capacitors and inductors ( thats the coil thingy), resistors and some other stuff depending on wat kinda cross over.

 

my opinion is that, if ur using a cheapo tweeter ONLY with like stock speakers, then just wack some capacitor as recommended by watever shop u went to.

 

but if u have a proper component set, either look for the original passive xover or if u heck care your sound, then just go and see whether anyone got a spare passive Xover lyin ard.

 

Cheers

[Headshok]

i explain to u in simple terms ah.

 

imagine u lookin for something to wear on ur foot to protect your feet from the ground.

 

then u go to one shop.

 

they give u a piece of rubber and string to tie to ur foot.

 

this does the job of protecting your feet from the ground rite? but will be liek sh1t rite?

 

then another shop offer u a shoe. it also protects your feet from the ground, is comfortable and looks good rite?

 

this is the cross over. so yeah, hope helps u understand.

 

cheers

Edited February 26, 2008 by Headshok

[Zerstorer]

A single capacitor in series with the tweeter will basically be a first order crossover with 6dB attenuation after a certain frequency.

 

It is extremely unlikely that such a setup will blend in with your existing system unless the guy does some in-depth analysis of how your current drivers are playing at.

 

Unless you are really on a shoestring budget, best with get a set of components with their own crossover instead.

Edited February 26, 2008 by Zerstorer

[Fitzy]

Thank you so much bros . Now I have a better understanding of which to get.

[Hyun]

most people who consciously use a single capacitor in series with their tweeters really know what they're doing. so congrats :)

 

the general idea is that they're not using it to provide a usable -6db/oct slope, but rather for protective purposes. especially in the case of "active" wiring in car audio, the tweeter would be connected to the amp with nothing in between, and potentially can be exposed to a full-range signal if the headunit/processor setting is wrong and the active crossover is not enabled. the capacitor would be a fail-safe device to prevent unnecessary damage to the tweeter.

 

the trick is that when u use the active crossover and set a value to it, and u have a capacitor in place too (a passive crossover), if the cross points of these two are close to each other, u end up with some interaction/overlap. the slope may not be exactly what u set, or -6db/oct, and the phase will shift too. all this usually doesn't matter too much because both left and right tweeters get shifted together. so it doesn't do much harm to the music.