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Old 5th February 2013, 12:21 AM   #551
ryani is offline ryani  United States
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Thanks a million xrk971! I appreciate the information. I'm going to get the 4.5 inch strips cut tomorrow night. I have employed the better half's hands to help this weekend. The weather is going to be cold and snowy so I'm really liking the fact I don't have to go out to the garage for this project.

I'll get some pictures up of the finished product.

Thanks again for all your help
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Old 5th February 2013, 12:28 AM   #552
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The saga continues...

So good to see the new persons on board. Here's what happened between work and when we have to go out (15 minutes from now)

JVC drivers on the Suprabaffles. Might want to remove a little insulation as the bass is a little light. [no **** Cal, they're 3" drivers]. Will have more time later but this is a busy week so I will experiment when I can.

Pics are no flash then flash.
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Old 5th February 2013, 12:36 AM   #553
xrk971 is online now xrk971  United States
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I like those supra baffles!
Good idea.
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Old 5th February 2013, 11:55 AM   #554
xrk971 is online now xrk971  United States
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Quote:
Originally Posted by ryani View Post
Thanks a million xrk971! I appreciate the information. I'm going to get the 4.5 inch strips cut tomorrow night. I have employed the better half's hands to help this weekend. The weather is going to be cold and snowy so I'm really liking the fact I don't have to go out to the garage for this project.

I'll get some pictures up of the finished product.

Thanks again for all your help
I wanted to add that, ideally, you should make a 27.5 in Cornu for the W4-1320SIF as it has a nice Fs of around 70 Hz, which is more suited for the longer channels afforded by the full-size design. If you do not need the deeper bass extension, the 24 in still works. The 4.5 in channel depth is good still.
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Old 5th February 2013, 12:53 PM   #555
ryani is offline ryani  United States
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Thanks for the heads up. I was wondering if bigger would be better but when I went to Menards they had 24"x24"x1/4" boards on sale for 3.99 a piece so that swayed my decision. Plus being my first foray into this style of speaker box I wanted to keep it simple as possible.

Just bought a box of blades for my sheetrock knife. Going to cut the strips tonight after work!
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Old 5th February 2013, 01:36 PM   #556
jsouder is offline jsouder  United States
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Default Cutting the Strips

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Just bought a box of blades for my sheetrock knife. Going to cut the strips tonight after work!
Ryani - You might also want to pick up a special kind of knife that is set up to make just a shallow cut in the surface. I have a Scotch-brand (about $5). When you slit crosswise at narrow intervals you can break the foam coreboard over the ruler of a t-square easily. This will allow you to do the bending so you get an accurate curve.
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Old 5th February 2013, 01:42 PM   #557
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Most box cutters have that feature, and yes do a 'rounding' of the slit foam before trying to form it with the glue.
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Old 5th February 2013, 01:44 PM   #558
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I like those supra baffles!
Thanks, my wife actually prefers them in the other direction. There's just no pleasing some people.
Actually she likes the fact that I'm inside while doing these. So she can keep an eye on me as they like to do.
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Old 5th February 2013, 02:56 PM   #559
xrk971 is online now xrk971  United States
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Quote:
Originally Posted by ryani View Post
Thanks for the heads up. I was wondering if bigger would be better but when I went to Menards they had 24"x24"x1/4" boards on sale for 3.99 a piece so that swayed my decision. Plus being my first foray into this style of speaker box I wanted to keep it simple as possible.

Just bought a box of blades for my sheetrock knife. Going to cut the strips tonight after work!
That's a great deal on quarter inch ply and probably would sway me too. The problem with the 27.6 in size is that there is a lot of waste as you can only make 3 sheets with a 4x8 foot panel. It requires you to buy two sheets. On the other hand, if I were to pursue a realistic copy of the commercial Cornu with two layers it works out to two sheets of 4x8 ft ply for two speaker as there are 3 layers ea.
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Old 5th February 2013, 02:57 PM   #560
xrk971 is online now xrk971  United States
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Originally Posted by Cal Weldon View Post
Thanks, my wife actually prefers them in the other direction. There's just no pleasing some people.
Actually she likes the fact that I'm inside while doing these. So she can keep an eye on me as they like to do.
What do you mean the other direction (vertical)?
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