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Post subject: Tone Ring-Plans Anywhere?
Posted: Wed Mar 09, 2011 9:31 am
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Joined: Sun Jul 25, 2010 8:13 am
Posts: 147
Location: Charm City
Hey gang, this may sound crazy, but does anybody know of any DIY tone ring plans that are available online? Just picked up a 4ohm JBL D-130 and am wondering about tone rings, ala Showman cabs. Never actually used an amp/cab that had one and was wondering what pros/cons may be involved. I've seen the kits offered for sale, but they're close to $250 plus shipping. All the info I've found indicate the rings are made of metal, but we've got a very solid 7 piece ply packing case at work that's gotta be nearly an inch thick. Would it be possible to use this as a front baffle, make spacers and speaker mount out of a couple of other pieces, and attach to front baffle with long bolts, providing a couple inches of porting? Let me know if I'm a)crazy, b)out of my element, or c)Just Plain Wrong! As ever, thanks for your thoughts, comments, help or condemnations, O.


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Post subject: Re: Tone Ring-Plans Anywhere?
Posted: Wed Mar 09, 2011 9:57 am
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Joined: Wed Mar 31, 2010 12:48 am
Posts: 26417
Location: Tombstone Territory
Tone rings were fabricated from 14-ga steel to both support the non-insubstantial weight of the Lansing speaker and to provide a solid kinetic bond between its frame and the enclosure's inner baffle. If Leo could've found a way to execute this Helmholtz ring-radiator design more cheaply, he would've.

Arjay

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"Here's why reliability is job one: A great sounding amp that breaks down goes from being a favorite piece of gear to a useless piece of crap in less time than it takes to read this sentence." -- BRUCE ZINKY


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