jbl / fender twin
No, they didn't. The cones and the surround were all one piece - paper. I did add "goop" to the surround, mainly to keep the surrounds from drying out.Originally Posted by Tom Loizeaux
Harvey,Originally Posted by Harvey Gerst
I certainly respect your knowledge, but when I examine my D140Fs, I see the cone paper ending and the surround looking like treated fabric. Unless I'm calling it fabric when its actually something else ... but it certainly does not look like one-piece rolled paper to me!
Can you double check this?
Thanks,
Tom
Tony Lowe may have changed it after I left JBL, but I used stock parts in all the "F" series, so a 15" cone with a fabric surround would have been out of the question for the D140F. It's either a later version, or a recone.
I love this horse's mouth stuff.
Right animal;wrong end.Originally Posted by speakerdave
This resurects a really old thread. However, I just found out what the "R" stands for - Rogers Instruments. Widget was on the right track. They are a well know organ manufacturer that is still in business. JBL developed a dedicated 15" driver for their use as an organ loudspeaker. Current staff at JBL believe that the D140R preceded the D140F, but I am not certain of this. I remember Harvey Gerst stating that he came up with the 140 model number for the 15" version of his "F" seires because 150 had already been taken by the 150-4 series. Maybe Harvey can clear this up.Originally Posted by Tomas M
Regards
Don McRitchie
Don, es gibt Dich noch ??
You are still here ??
There was no taken 1xx series at the time, except for the 13x and the 15x, so I chose to try to number the series according to frame size, hence the D110F, and the D120F. I couldn't change (and wouldn't change) the D130, since it was already so popular. That left the 15" bass speaker; what to call it? It would cause confusion to name it after one of our existing models, so I simply chose D140F as the name. I used an aluminum dome on the D140F more for product identification, but it actually did help a little, and it allowed me to continue with the "F" series as an aluminum domed speaker series.
If JBL made D140R's after I left, I didn't know about it. Tony Lowe took over the department, so it was probably his model number. I know, for sure, there were no 140 anythings prior to my naming the bass speakers as D140F's.
I thought the aluminum dome helped a LOT when I got a D140 for my bass guitar amp, my old CTS 15's sounded really dull by comparison. I was hooked!Originally Posted by Harvey Gerst
glen
"Make it sound like dinosaurs eating cars"
- Nick Lowe, while producing Elvis Costello
Harvey, I bought three new D140F's in 1971. After installing them in my 4x15 cab I notice that two of them had a much more supple suspension while the third was noticably stiffer.
So I called JBL and the guy (don't remember his name but I do remember he was very helpful) said that JBL started stiffening them up because too many players were blowing them up.
What does this have to do with anything? Nothing at all....I just remembered it. Those things were expensive back then for a kid and I was so proud of them.
There are two theories to arguing with women, but...neither has worked.
werent the k series for bass.i used to have k 140's in single cubes made by a local company .i miss em
I bought a new pair in '75, after having been exposed to a pair a bass player friend of mine had. I lost one to a comparison test with a Peavey 1501, around '80. (Salesman said the ALU dome was integral with the coil former to allow better heat conduction and dissapation, seemed to be true, but of course there's no way to center the coil from the front, which is why Peavey's have the removable magnet. I bought 4 1501's in '80, have yet to burn one out...) I ran the K's in 2530's, along with a bunch of D's, the 1501's lived in W boxes where the sealed back meant the only way out for heat was through the dome...Originally Posted by jim campbell
I just finished reconing that K-140 last year! (Note to self, do NOT use Duct tape to protect a gap for 25 years...) I put a 2225 coil, 2226 cone & spider in it to test an idea I had about increasing the Xmax, currently in a W box taking all the punishment I can throw at it...
The other one is still original, and paired with a reconed D-140...
Mike Scott in SJ, CA
Mike Scott in SJ, CA
Drive 'em to the Xmax!
K series were just the later versions of the D series. 140 is designed for bass.Originally Posted by jim campbell
John
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