Speaker Rotation?

Alan Kirk · Post by **Alan Kirk** » 7 Nov 2004 9:23 am

Years ago an old Navy electronics tech told me that you should periodically rotate your speakers 180 degrees, because over time they tend to sag and rotating them counteracts that.

Anyone ever heard of this before? Agree? Disagree?

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Jim Bates · Post by **Jim Bates** » 7 Nov 2004 10:44 am

Yes, and I did it with a couple of my JDL E-130 speakers that Sounded like they needed re-coneing. I rotated them 90 degrees and the 'popping' went away immediately. It won't hurt. Also, you should brush the dirt out occasionally. I use a soft camel hair brush.

Thanx,
Jim

Jon Light (deceased) · Post by **Jon Light (deceased)** » 7 Nov 2004 11:15 am

Yeah, I give 'em a spin once a week......

....but seriously, I've never heard of rotating speakers. Interesting.

Larry Jamieson · Post by **Larry Jamieson** » 7 Nov 2004 11:19 am

Man Jon,
That is some bank or speakers. What is it, the Voice of the Theater set for Radio City?

Jon Light (deceased) · Post by **Jon Light (deceased)** » 7 Nov 2004 11:24 am

No idea, Larry

--stole the photo from somewhere online. Just posted it 'cause I get a kick out of it. Some day that will be my rig!

Mark Herrick · Post by **Mark Herrick** » 7 Nov 2004 12:20 pm

It's the prototype for the Greatful Dead's sound system...

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Earnest Bovine · Post by **Earnest Bovine** » 7 Nov 2004 12:24 pm

I just rotate the cabinet.

Bill Llewellyn · Post by **Bill Llewellyn** » 7 Nov 2004 1:35 pm

Rotating speakers? Didn't some guy named Leslie come up with thay idea some time ago?

(I know, that's not the kind of rotation we're talking about here.....)

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Bill, steelin' since '99 | Steel page | My music | Steelers' birthdays | Over 50?

James Morehead · Post by **James Morehead** » 7 Nov 2004 7:59 pm

My amp guy says the same thing, that eventually they will sag and start to scrape. He's been doing amps since 1960, so he might have a clue. He reconed his share,too. He said JBL's were the worst.[This message was edited by James Morehead on 07 November 2004 at 08:16 PM.]

Alan Kirk · Post by **Alan Kirk** » 7 Nov 2004 8:56 pm

Lots of comedians here on the Forum.

Earnest has the right idea, but it just doesn't work that well with a Super Reverb.

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David L. Donald · Post by **David L. Donald** » 8 Nov 2004 12:56 am

Gravity always wins!

But levity sometimes lightens the load

Dave Van Allen · Post by **Dave Van Allen** » 8 Nov 2004 7:22 am

Jon- I love that picture... thanks.

Ray Minich · Post by **Ray Minich** » 8 Nov 2004 11:20 am

That piece of pipe comin' outa the center of the vertical plane (where all the exponential horns are hangin') is the bass reflex port for the whole room. Gotta close the door when leaving else it'll blow ya clear the the Empire State Building

(Didja catch the size of the combination wrench set he's got layin' on the floor?)[This message was edited by Ray Minich on 08 November 2004 at 11:22 AM.]

Thomas Bancroft · Post by **Thomas Bancroft** » 8 Nov 2004 12:45 pm

You'll be hailing a semi back to Brooklyn with that rig!

David L. Donald · Post by **David L. Donald** » 8 Nov 2004 2:33 pm

Ray that look more like 6" I beam to support the whole shebang.

Classic late 50's early 60's technology for theaters.
All pre Klipsch.

You can see the rudimentary horn like summming of all the air movement with the angled woofers baffles.Trying to add some directionality to all that airflow.

I bet it was running on tube amps in another room too, with some serious AC.[This message was edited by David L. Donald on 08 November 2004 at 02:37 PM.][This message was edited by David L. Donald on 08 November 2004 at 02:39 PM.]

Bobby Lee · Post by **Bobby Lee** » 8 Nov 2004 4:52 pm

I point mine backwards towards the wall on every other gig.

Seriously, I've never heard of rotating speakers like that before.

Jim Bates · Post by **Jim Bates** » 8 Nov 2004 5:52 pm

That's what I like about this forum. You can learn something really useful once in a while.

Keep it going!

Thanx,
Jim

Jim Bates · Post by **Jim Bates** » 10 Nov 2004 12:39 pm

This is probably more of a JBL issue because of the closer spacing between the voice coil and the magnet than most other brands. With the wider gap, other speakers may not have this problem. By the way, a top-notch JBL speaker service rep in Houston told me about trying the rotation before doing a re-coning.

Thanx,
Jim