New to this stuff. Need help with crossovers and tweeters. Pretty please. - Home Theater Forum and Systems - HomeTheaterShack.com

 
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post #1 of 2 Old 11-14-09, 08:04 PM Thread Starter
 
Join Date: Nov 2009
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New to this stuff. Need help with crossovers and tweeters. Pretty please.

Ive had these concrete speaker boxes for ages now and im trying to get them going but i have basically no idea how to match speakers with crossovers and tweeters.

New to this stuff. Need help with crossovers and tweeters. Pretty please.-p1020346.jpg

im using these 8" woofers (90w RMS) with a frequency of 28.14hz, frequency response of 38hz-4.5khz and sensitivity of 89dB

New to this stuff. Need help with crossovers and tweeters. Pretty please.-8inch-woofer.jpg

Would a set of 3.5khz crossovers be suitable and should i use 6dB or 12dB per octave rolloff?

AND

Would a tweeter with 50w rms, 2-20khz response and 91dB sensitivity
or a tweeter with 20w rms, 2-20khz response and 89db sensitivity be better.

the speakers will be used for basically everything haha.

thanks to anyone whos bothered to read and sorry if ive gotten everything wrong.
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post #2 of 2 Old 11-15-09, 03:46 PM
Yad
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yad
 
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Re: New to this stuff. Need help with crossovers and tweeters. Pretty please.

Rondo, did you measured this SPL by yourself ?
If you do, you should also have the Impedance curve. Also you'l need SPL and Z for tweeter.

Anyway. I think you need:
1. baffle step compensation
2. a tweeter with 50w rms, 2-20khz response and 91dB sensitivity is better
3. X-over point of 3.5khz is too high. 2-2,5 Khz is better
4. 12 db roll off (maybe even 18db)
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