MLTL- Betsy k

opa1 · 10:48 PM

New project. Woods cut and assembly has started. It's 6.226ft^3 cab. 21x13.5x48 od.

mikje · 20th August 2012, 12:38 AM

Out of curiosity, how did you come up with the dimensions for the enclosure? I'm anxious to hear how you like it. I'm a fan of single driver units; I think because of their relative simplicity.
Mike

opa1 · 20th August 2012, 12:48 AM

The dims and sims are posted in another thread. GM did them. I'd copy and paste here but, I cant get it to work.

GM · 20th August 2012, 07:26 AM

Sealed FR with Betsy K

GM

opa1 · 20th August 2012, 02:36 PM

Thats them. Thanks for putting them here. The main part of the cabs are done. Need to figure out the bracing inside. Still waiting on the ports from PE.

GM · 20th August 2012, 03:08 PM

You're welcome, what are they made of?

GM

opa1 · 20th August 2012, 03:17 PM

There birch ply. I think I'm going to put x braces just below the driver and then about 14" up from the bottom. I'm going to make the bottom bolt on with a gasket to seal. That way if I need access to stuff, it will be easy.

GM · 20th August 2012, 05:22 PM

How thick/number of plys? Regardless, unless you use 2/3-3/4 cab length vertical strips [~3/4" x 21/2"] turned on edge with interlocking tie bars to create the 'X', then bracing locations follow the same as for driver, vents, i.e. ~1/3rd, 5ths.

Ideally, the top plate [bottom also if spaced up] needs to be rigid/massive, so adding a massive top plate [removable for heavy cabs] is a good plan. For WAF, heavy potted plants and/or slate, marble work well, which I make small recesses to Velcro [industrial grade] them on.

GM

opa1 · 06:00 PM

Are you saying to glue two 3 3/4" strips together. Then place it from top plate to bottom? I'm guessing it would go in the center of box. Or I can put two 3/4 x 2 1/2 x braces at Zd and Zp. Or do both?

opa1 · 20th August 2012, 08:41 PM

Made some interlocking x braces 2.5x 3/4". Cut top covers.

20th August 2012, 12:38 AM	#2
mikje Soakin' up the Sound! diyAudio Member Join Date: Feb 2008 Location: Bismarck, ND	Out of curiosity, how did you come up with the dimensions for the enclosure? I'm anxious to hear how you like it. I'm a fan of single driver units; I think because of their relative simplicity. Mike __________________ Marantz PM8003 amp, Squeezebox Touch, DIY Krystals Jolida SJ502B, Mark Audio Alpair 10.2s

20th August 2012, 07:26 AM	#4
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	Sealed FR with Betsy K GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

20th August 2012, 03:08 PM	#6
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	You're welcome, what are they made of? GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

20th August 2012, 05:22 PM	#8
GM diyAudio Member Join Date: Jun 2003 Location: Chamblee, Ga.	How thick/number of plys? Regardless, unless you use 2/3-3/4 cab length vertical strips [~3/4" x 21/2"] turned on edge with interlocking tie bars to create the 'X', then bracing locations follow the same as for driver, vents, i.e. ~1/3rd, 5ths. Ideally, the top plate [bottom also if spaced up] needs to be rigid/massive, so adding a massive top plate [removable for heavy cabs] is a good plan. For WAF, heavy potted plants and/or slate, marble work well, which I make small recesses to Velcro [industrial grade] them on. GM __________________ Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.

20th August 2012, 05:51 PM	#9
opa1 diyAudio Member Join Date: Jun 2011 Location: TX.	Are you saying to glue two 3 3/4" strips together. Then place it from top plate to bottom? I'm guessing it would go in the center of box. Or I can put two 3/4 x 2 1/2 x braces at Zd and Zp. Or do both? Last edited by opa1; 20th August 2012 at 06:00 PM.

20th August 2012, 12:48 AM	#3
opa1 diyAudio Member Join Date: Jun 2011 Location: TX.	The dims and sims are posted in another thread. GM did them. I'd copy and paste here but, I cant get it to work.

20th August 2012, 02:36 PM	#5
opa1 diyAudio Member Join Date: Jun 2011 Location: TX.	Thats them. Thanks for putting them here. The main part of the cabs are done. Need to figure out the bracing inside. Still waiting on the ports from PE.

20th August 2012, 03:17 PM	#7
opa1 diyAudio Member Join Date: Jun 2011 Location: TX.	There birch ply. I think I'm going to put x braces just below the driver and then about 14" up from the bottom. I'm going to make the bottom bolt on with a gasket to seal. That way if I need access to stuff, it will be easy.

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