the horn dimensions, for somthing like this?
the horn dimensions, for somthing like this?
The location of my loose ones eludes me, or I'd measure them. The one dimension I do remember is the shocker though, the throat opening is ~7/8".
I have a theory...
"[I]We're going all the way, till the wheels fall off and burn[/I]!"
Bob Dylan, from [I]Brownsville Girl[/I]
[I]"Time wounds all heels"[/I]
John Lennon, referring to the Nixon/Hoover deportation fiasco.
FWIW, my SWAG is that the molding includes a reverse tapered adapter which does double duty to pre-load the WG that in turn will create a notch at the adapter's 3rd harmonic around 1 WL of its length and I imagine they designed this system combined with the supplied hi-pass cap to be the acoustic part of an acoustic 2nd order XO.
Or do I give them too much credit and it's just another 'make do' mis-mash of existing parts?
GM
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
Dunno, that sounds reasonable though.
My 'theory' reverts to MantaRay tech that uses a diffraction slot to fully "illuminate" the WG at HF on the big MRs. On the mini-MR, lacking the length for a slot, maybe the short, reduced throat serves that duty?
Then again, it seems I read one of the preliminary 90x sheets once that listed a 7/8" exit. I never had any of the MR 16HF drivers to check that, only the horns.
Added:
The molded "adaptor" is ~1/4" long, and 7/8" round to 7/8" square in that length. With it removed, the body throat is still 7/8" square. Only way to get 1" is to shorten the horn, so the entire assembly appears to have been designed around the 7/8" dimension.
"[I]We're going all the way, till the wheels fall off and burn[/I]!"
Bob Dylan, from [I]Brownsville Girl[/I]
[I]"Time wounds all heels"[/I]
John Lennon, referring to the Nixon/Hoover deportation fiasco.
Well, don't I feel like the dumba$$.All 900 series are 7/8" exit and if I ever noticed it I'd clean forgot I guess since I only was exposed to a few pairs others bought. Mostly I remember how they didn't load 511/500 Hz XOs very well due to their BW being shifted up to get less horn honk and more highs with SS amps. The smaller throat certainly explains a lot about how they achieved it.
http://www.lansingheritage.org/image...pro/page05.jpg
GM
Loud is Beautiful if it's Clean! As always though, the usual disclaimers apply to this post's contents.
There's that sheet! Was thinking my thinker had thought bad thunks fer a minute...
Not all 900s are 7/8" though, my 909s are 1" and the 909 sheet backs it up.
Sooo... the horn merely fit the driver it was made for, no mystery. Begs the Q of the MR-equipped 604s internal WG dims though...(and if later/current production 900s are 7/8" or 1")
Tom, the spec sheet lists the MR horn at 6-5/8"W x 4-9/16"H x 4-5/16D.
"[I]We're going all the way, till the wheels fall off and burn[/I]!"
Bob Dylan, from [I]Brownsville Girl[/I]
[I]"Time wounds all heels"[/I]
John Lennon, referring to the Nixon/Hoover deportation fiasco.
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