Anyone willing to build Crossovers? - Page 3 - Home Theater Forum and Systems - HomeTheaterShack.com

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post #21 of 26 Old 03-19-08, 05:46 AM
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Re: Anyone willing to build Crossovers?

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Thanx Boomie. As you mentioned, the 2 woofs may be a bit much. Thats why i was inquiring about using 2 of the 4" TangBangs as well. What do you think ?
A few things. What impedence do you want the speaker to be? If you are looking of 8 ohm having two of the TB Titaniums will be tough as just one is 8 ohm. Connecting them in series will be 16, parallel 4.

Another thing is that if the titanium drivers are acting as tweeters too you will get something called "comb filter effect" if you have more than one. This is why most speakers (other than line arrays) only have one tweeter. Do a Google on it.


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post #22 of 26 Old 03-19-08, 11:43 PM Thread Starter
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Re: Anyone willing to build Crossovers?

Thanx again boomie, these little bits of info are really helping. I've been reading up a bit on the subject and i'm gonna try a three way design with ready made x-overs. I can probobly experiment with these by swapping components trail and error if i miss on the first try.This way i can learn as i go. My design requirements are for front main towers for 50/50 music and HT in a fairly high power system. When i'm listening to music i would like to use the fronts only no sub through my sony es3200. I'm considering 2 Dayton 7" 4 ohm woofers in series ported in 2 cuft tower design.This should give me very flat response down to 40hz. I'd like to cross these at 150 hz. For HT i can then cross my sub a bit lower at around 80hz-low end should blend nicely here. At the top of the tower at 26" i'd like to mount a 4" driver in a 6" spun aluminum sphere aka B&W sealed with 1/2 of the sphere exposed on top of the cab. I will need to mount a tweeter and i'm thinking another 3" sphere suspended at 38" on center above the top of the cab-thinking the Morel neodyn dome. For starters what xover points would you suggest for the mid-highs ?
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post #23 of 26 Old 03-20-08, 05:44 AM
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Re: Anyone willing to build Crossovers?

If I'm reading you right, you are talking about puting 12" between your mid and tweeter. How far away from the speaker will you be seated? I ask because with that kind of seperation between the drivers, I'd wager you will get some funky phase nulls and peaks between the two drivers in the xover region. If you sit quite far, it might not be an issue. If you sit up close, you'll hear it for sure. I'd recommend you bring them closer together.
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post #24 of 26 Old 03-20-08, 06:05 AM
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Re: Anyone willing to build Crossovers?

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For starters what xover points would you suggest for the mid-highs ?
This is totally a question of personal preference (so there is no "right" answer) but for 3-ways I like x-over points around 500Hz and 3.5-4kHz or so.


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post #25 of 26 Old 03-20-08, 06:40 AM Thread Starter
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Re: Anyone willing to build Crossovers?

Ok, so i looked at it on paper and aesthetically i can bring the tweeter down four inches for 8" of seperation between the two on center. My seating distance is 12 feet. The tweeter housing will have the ability to pivot up and down so i should be able to find a sweet spot and lock it in place. Thanks for the feedback.
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post #26 of 26 Old 10-22-08, 11:18 AM
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Re: Anyone willing to build Crossovers?

I have experimented with ready made cross overs mostly 2 way design with great success.
First determine what cross over points are available in ready made x-overs. Then decide if these points are sufficient.

Things won't always be perfect, even if you were designing your own x-over.
The same applies to ready made x-over, it'll be trial and error depending on other variables.

Parts express sells these and I think madisound also does.
Try it out and as your confidence level builds up you can start designing your own simple x-overs.
This a hobby so have fun while learning.

Just my opinion!
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