Cab Insulation [message #18402] |
Tue, 12 March 2013 21:18 ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
toopicky
Messages: 50 Registered: September 2011
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Member |
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I will need some cab insulation for my project cab I plan to build (eventually). I would like to use something similar to the insulation Kustom used so that I can make it as original as possible. Unfortunately, I haven't been able to find anything like it.
Anyone know where I can get something like that?
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Re: Cab Insulation [message #18415 is a reply to message #18402] |
Wed, 13 March 2013 20:47 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
rodak
Messages: 515 Registered: October 2001 Location: Georgia
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Senior Member |
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Are you talking about that fiberglass insulation? What, exactly, is the purpose of it?
When I was a teenager, a friend took the back of his Bandmaster speaker cab off, and we saw a solid sheet of fiberglass insulation - it was apparently attached to the sides or something,and not the back itself. Well, looking at that, I thought the entire cabinet was full of the stuff. When I built my first cabinet (something the size of a Dual Showman cab, but with only two 12s in it) I went to the hardware store and bought a bunch of fiberglass batting, like you'd put into walls or attic, and literally stuffed the cab full of it. I think it sounded ok, but kind of dead. I really didn't know what I was doing.
www.combo-organ.com
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Re: Cab Insulation [message #18416 is a reply to message #18402] |
Thu, 14 March 2013 00:10 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
chicagobill
Messages: 2005 Registered: April 2003
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Senior Member |
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Those Bandmaster and Bassman cabs were filled with fiberglass. The concept is called an infinite baffle where there is no output from the rear side of the speaker. Like the cabinet was infinitely large.
Later Kustom cabs were ported so they were only lined with the fiberglass batting.
You can use the type of fiberglass that is used for wall insulation, but it is rarely available in one inch thick unfaced rolls.
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Re: Cab Insulation [message #18418 is a reply to message #18402] |
Thu, 14 March 2013 02:04 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
chicagobill
Messages: 2005 Registered: April 2003
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Senior Member |
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I still find unfaced rolls that are used for adding on top of the existing attic floor insulation, but the minimum thickness is two inches, which will work fo Fender cabs. Three of four inches is much more common.
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Re: Cab Insulation [message #18422 is a reply to message #18402] |
Thu, 14 March 2013 20:20 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
noexit
Messages: 21 Registered: February 2008 Location: Far North
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Junior Member |
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You can tear a piece of insulation right down the middle to thin it out. Try the yellow stuff.
350!
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Re: Cab Insulation [message #20632 is a reply to message #20630] |
Sun, 18 May 2014 01:06 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) ![Go to next message Go to next message](/FUDforum/theme/vk30/images/down.png) |
oren hudson
Messages: 274 Registered: March 2008 Location: Gastonia, NC
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Senior Member |
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I realize that this is not your original question, but thought I'd throw it out to you. The general guide for insulating a cab is: If it's ported, line all sides and the back with about an inch or two. If it's not ported, stuff the open spaces, not so tight to interfere with speaker movement, but to fill up most of the open air. If your lining, like in Kustoms, I've used the backed stuff and of course, put the backing side up against the wood. Lots of folks have used mattress topers at Wal Mart, but I found those to be pretty expensive, so I went to the Lowes Home Depot type places and got the regular type insulation.
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Re: Cab Insulation [message #20860 is a reply to message #18402] |
Fri, 04 July 2014 02:41 ![Go to previous message Go to previous message](/FUDforum/theme/vk30/images/up.png) |
Iowa Boy
Messages: 767 Registered: June 2014
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Senior Member |
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I found excellent speaker insulation and priced very reasonable. Poly foam........shaped like egg cartons and is used to cushion mattresses. $10 for a twin mattress and more than enough to insulate a (3) speaker cabinet. Very similar to the stuff they use in recording studio's. Acoustic rating is higher than fiberglass and won't make you itch. Not sure what the longevity is but at that price you can afford to change it out every ten years or so. Available at Walmart in the bedding section.
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