building 3way passive crossovers

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bluecowboyia

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Joined: October 15, 2004

Location: United States

Posted: October 15, 2004 at 10:49 AM / IP Logged

any help would be appreciated on this here is my situation. I purchaseda 4" mid range a 5 1/4" mid bass and 1" silk dome tweeters all by pheonix gold I want to cross the 5 1/4 at 1000 low pass the 4" band pass 1000 to 5000 and the tweters 5000 high pass as per phoenix gold suggestions. however I am unsure as to how to go about this. My amp is only 2ohm stable so I will be running them in a series parrallel setup at 2.66 ohmshow can I accomplish this.thank you to anyone who can help!!!

Steven Kephart

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Joined: November 06, 2003

Location: Oregon, United States

Posted: October 16, 2004 at 2:15 AM / IP Logged

I would recomend buying a component set that already has a crossover for the speakers. I highly doubt you are going to get those speakers to sound their best by shooting in the dark at crossover frequencies and slopes. We have very expensive test equipment and software to design and build crossovers. Plus our engineers have a lot of experience doing it and know what works and what doesn't. Your never going to get even close to the same results doing it that way. Also, doing a 3 way will be even more difficult, especially with those drivers you chose. If you are dead-set on using the above speakers, then I highly suggest dropping the 4's and just using the 5 1/4's and tweeters. I can't see any benifit on having the 4, and see a lot of reasons not to use it. Good luck!

Steven Kephart

Adire Audio

DYohn

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Posted: October 16, 2004 at 10:00 AM / IP Logged

In general I agree with Steven; however, if you have the speakers and simply want to try your hand at building some crossovers, then why not go for it. The first thing you need to do is some research. Your initial post tells me you really don't know what a crossover is or how it works. Start here, then here, read up on design theory here, and when you're ready to try your hand at designing your circuit, here's a handy calculator to download. Like Steven indicated, it is very difficult to build a musical, neutral-sounding crossover without being able to measure some very specific parameters of your speakers that are not published by manufacturers, but it can be a lot of fun to try and very satisfying when you build one that does sound good.

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building 3way passive crossovers

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