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Question For Home/Auto Audio Gurus (crossover related)

Robb

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Not really auto audio related, or even home audio related, but I was hoping someone with some good insight into passive crossover wiring could help me out here.

My computer audio system consists of a 8" powered sub, and two mid/tweet components consisting of a 3.5" mid and 3/4" tweet. Problem is that when I put any real bass on the system, the sub does fine (for what a low power 8" can do) but the crossover network is allowing way too many low frequencies into the mid/tweets. I am not looking for great sound out of this thing, I have the real home a/v setup for that, but I want a little performance out of my computer.

About 10-15 years ago, when I knew stuff about audio, I could have figured this out for myself...................but age has caught up with me, and I am out of the loop. For all I know, a passive crossover network is nothing but a series of capacitors blocking frequencies from flowing (either high or low).

So, I want to block the lows from getting into the mid/tweet components. The break between 8" and 3.5" is kinda a weird one, so I don't even know what that break point should be, I just know it needs to be higher than it is. So, to break the question down to its simplicity, if I wanted to install capacitors inline with my mid/tweets to block frequencies below, let's say 500hz, what size capacitor should I put there? Is 500hz a good break point to seperate the 3.5" and the 8", or is there too much in the middle that I need?

Just bouncing ideas.................................
 






On my live three way system the subs get 100 on down, the the highs get 9k on up every thing else in the mids and every thing is sloped.

Very diferent application but maybe it is of a small grain of help.
 












If you system is self powered then the crossover should be electronic and before the power amps ... they probably cheated and only put a crossover on the sub amp and let everything go to the satellite amps and speakers

Electronic is definitely the way to go, a passive crossover that low of a frequency is a power waster
 






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