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Keystone Sub Using 18, 15, & 12 Inch Speakers
Keystone Sub Using 18, 15, & 12 Inch Speakers
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Old 1st August 2014, 04:14 AM   #211
chappaj is offline chappaj  United States
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ok downloaded rew. Is it possible to do the measurement with my with the interface I have. Steinburg ur44. I'm a little lost on how to wire this for test.
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Old 1st August 2014, 11:21 PM   #212
spenserh is offline spenserh  Canada
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I'll try to get some measurements on my Keystones in the next few weeks, I'm all tied up this weekend (human forklift for a One Direction show) and next (Mixing B Stage at a folk festival), but should have some free time to finish up my second cabinet and measure them.
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Old 9th August 2014, 06:23 PM   #213
tralfaz is offline tralfaz  United States
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Default My First Keystone Build

Getting closer to test of my first build. This is what I have so far. All my internal dimensions are within 1/8" to 3/16". The braces sure took me longer to fiddel in than I would have guessed....

I am going to try it out with a Peavey Low Rider 18 that I have on hand and see how it does.
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File Type: jpg keystone 014.jpg (399.0 KB, 525 views)
File Type: jpg keystone 015.jpg (418.6 KB, 509 views)
File Type: jpg keystone 016.jpg (419.1 KB, 483 views)
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Old 9th August 2014, 07:22 PM   #214
weltersys is offline weltersys  United States
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Quote:
Originally Posted by tralfaz View Post
Getting closer to test of my first build. The braces sure took me longer to fiddel in than I would have guessed....
Braces are a pain, but make a big difference.
Looking forward to you and Spenser's test results!
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Old 10th August 2014, 06:34 PM   #215
Brian Steele is offline Brian Steele  Grenada
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Quote:
Originally Posted by tralfaz View Post
Getting closer to test of my first build. This is what I have so far. All my internal dimensions are within 1/8" to 3/16". The braces sure took me longer to fiddel in than I would have guessed....

I am going to try it out with a Peavey Low Rider 18 that I have on hand and see how it does.
Hmm.. where's the mouth for the subwoofer in those pictures?

I wish I could get away with so little bracing for the plywood that's available here for subwoofer building. I basically bifurcated my last subwoofer all the way down to the last fold with a cross-brace, and still the top vibrates a bit more than I'd like. Doubling up on the thickness of the top panel didn't help much either.
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Old 10th August 2014, 07:53 PM   #216
freddi is offline freddi  United States
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Keystone Sub Using 18, 15, & 12 Inch Speakers
(guess that non-fixed panel will be the mouth panel) - hey Weltersys - what might be a good/inexpensive Keystone12 cabinet/driver combo?
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Old 11th August 2014, 02:54 AM   #217
85audio is offline 85audio  United States
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Default Keystone Sub

What would a double Radian 2216 Keystone cab look like? 6" wider and still fit through the door. Is the 2216 a candidate, 14lbs apiece, light weight and 21.3mm xmax! I know, expensive, right. Who cares, what can it do.
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Old 11th August 2014, 02:58 AM   #218
sine143 is offline sine143  United States
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maybe we would know if they would post a complete spec sheet....
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Old 11th August 2014, 02:11 PM   #219
tralfaz is offline tralfaz  United States
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Quote:
Originally Posted by Brian Steele View Post
Hmm.. where's the mouth for the subwoofer in those pictures?

I wish I could get away with so little bracing for the plywood that's available here for subwoofer building. I basically bifurcated my last subwoofer all the way down to the last fold with a cross-brace, and still the top vibrates a bit more than I'd like. Doubling up on the thickness of the top panel didn't help much either.
Had not yet cut out the "keystone" mouth. It goes top left.

I did finish one cab yesterday and a quick listen brought smiles to my face.

Kudos to weltersys for a great sounding design! I will attempt some measurements later this week and share what I observe.
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Old 11th August 2014, 06:47 PM   #220
weltersys is offline weltersys  United States
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Quote:
Originally Posted by freddi View Post
what might be a good/inexpensive Keystone12 cabinet/driver combo?
Freddi,

Two Lab 12s worked well, the results were posted in the OP. A single version could be made by reducing the width appropriately.

Last edited by weltersys; 11th August 2014 at 06:51 PM.
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