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Multi-Way Conventional loudspeakers with crossovers

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Old 28th November 2012, 05:02 PM   #11
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also,the LPAD is just a resister correct? There is no value for RP1 in the chart.

I see you incorporated some EQ adjustment for the woofer in the crossover?

and what is REQ and CE ?
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Old 28th November 2012, 06:23 PM   #12
Einric is offline Einric  United States
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The 1 parallel resistor in the tweeter circuit is all you need.
The 6.8uf will work just fine.
18-20awg inductor is just fine.

REQ & CE are the Woofer Zobel.
They will help to tame the woofer and make it play nice in the crossover.
You need them, the 15uf cap for Ce can be a regular Non-Polar Electrolytic.
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Old 29th November 2012, 12:22 PM   #13
Einric is offline Einric  United States
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Update.........
Use a 4Ω resistor for Req. It makes the phase tracking and reverse null extremely good.
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Old 29th November 2012, 08:22 PM   #14
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fantastic einric thanks. I'm gonna order everything once I figure out what I'm gonna use for an amp.

Right now I'm using a Yamaha 5.1 receiver to power my bookshelf computer speakers AND the front room in walls speakers with sub.

I simply need more power to the front room...
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Old 30th November 2012, 12:09 AM   #15
Einric is offline Einric  United States
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Keep in mind this speaker would be somewhere between an 4-6Ω design.
Please keep that in mind.
Also remember.....this is only a simulation, not an exact science.
Will it be better than most off the shelf "garbage"? Probably.
Will it be better than a well designed 2-Way from a mainstream builder? Maybe.
Will it be the next revolution in audio design? NO WAY!
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Old 30th November 2012, 03:30 AM   #16
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Very Cool!!!
I have been modeling that driver lately myself.
I will be very interested in hearing about your impressions with it, once you get it going.

Cheers !!

jer
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Old 4th December 2012, 05:01 PM   #17
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just ordered everything. I noticed there was no value in the chart for RP1? did it miss something?

go 10 bucks off my parts express order AND free shipping.
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Old 5th December 2012, 01:36 AM   #18
Einric is offline Einric  United States
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Nope I removed Rp1 and tweaked Rp2 to give the response shape needed.
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Old 5th December 2012, 03:06 PM   #19
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cool thanks. I have my office demod. I'm gonna be mounting the speaker boxes right in the studs and going with an "old wood" look....IE no drywall on my desk wall....kinda like an accent wall or something.

I'm building my computer desk out of 3/4'' cabinet grade particle board and dimensional lumber. Then mounting my monitor on the wall in between the studs. Then the speakers in the adjacent cavities.

I'll post pictures as I go !

Last edited by illnastyimpreza; 5th December 2012 at 03:08 PM.
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Old 11th December 2012, 04:03 AM   #20
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I forgot to order the port tubing. Can I just swing by home depot and grab some 3'' PVC piping?

I also forgot computer circuit board to build the crossover on.... guess ill hit up radio shack.
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