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Wild Burro Audio DIY full range speakers from Wild Burro Audio Labs

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Old 19th September 2012, 12:51 AM   #11
opa1 is offline opa1  United States
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Does this sound about right? 54.25h x 22w x 9.5d. I came up with a So, Sl of 209.822"^2.??
Mark

Last edited by opa1; 19th September 2012 at 12:58 AM.
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Old 19th September 2012, 02:02 AM   #12
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My ancient calculator says 22*9.5 = 209"^2, so no clue where the fraction came from.

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Old 19th September 2012, 02:45 AM   #13
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'no clue where the fraction came from.'

LOL, I'm not sure either. I tried the (1.618* 64.78)^0.5. That came out at 10.23wx6.33dx54.15h. I dont know if thats right either. It does come out to 2.03ft^3. If it is correct, It would be a cool build too. Not to mention alot less work. Have to change name back to Pioneer.
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Last edited by opa1; 19th September 2012 at 03:11 AM.
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Old 19th September 2012, 03:09 AM   #14
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Hmm, real close, 10.238 rounds up to 10.24.

Don't know about you, but my tape measure is in fractions and I've reached the point where it's hard enough to see the 16ths marks that 1/8" is my accuracy limit these days, so 10.25" x 6.375" works for me.

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Old 19th September 2012, 03:15 AM   #15
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Cool, Your going to get me to learn this stuff yet.

I'll figure up the materials. Lets cut wood.

Last edited by opa1; 19th September 2012 at 03:19 AM.
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Old 19th September 2012, 03:29 AM   #16
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Quote:
Originally Posted by opa1 View Post
It would be a cool build too.
Yeah, I believe you'll like it due to having a bit of mid-bass bump while being well damped, so should be relatively immune to excessive overdrive as long as you don't use digital EQ to boost the low end.

I built a bunch of this type alignment way back when except with a ~40 Hz Fs, very wide BW 12" normally used 'full-range' in mono and early stereo consoles coupled to a plastic 1200 Hz, phenolic diaphragm, expo horn capped off 1st order with 2.2 uF. Great all round and party speaker for vinyl, 8 track tapes and AM/FM the rest of the time with both PP tube and early SS amps.

Wish I still had some components to see how they would fare against today's 'el cheapo' offerings.

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Old 19th September 2012, 03:35 AM   #17
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Quote:
Originally Posted by opa1 View Post
Cool, Your going to get me to learn this stuff yet.

I'll figure up the materials. Lets cut wood.
'Hope springs eternal'

Wish I could do some speaker building, but my woodworking schedule/budget is currently limited to this whole property rehab that the housing market collapse has forced me to do.

Looking forward to your thoughts on the alignment and if there's a lot of tonal difference between these and the larger cabs.

GM
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Old 19th September 2012, 03:48 AM   #18
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In your dims. You stated 64.78"^2 +driver,bracing. Are the cab figures large enough if these are added in?

Last edited by opa1; 19th September 2012 at 03:56 AM.
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Old 19th September 2012, 03:59 AM   #19
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Dunno, I normally just add ~10% to the calculated Vb to allow for these and specs variation since historically, actual measured specs calcs a larger cab, so recalculate using 2.03*1.1 = 2.233 ft^3.

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Old 19th September 2012, 04:12 AM   #20
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Humm, 11wx6.5dx54.15h= 2.24ft^3 Should be close enough.
Use the top,one side and back 1" foam too?

Last edited by opa1; 19th September 2012 at 04:24 AM.
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