Baffle layout

[Alex Lancaster]

Bo:

I went to the thread, but there is nothing in it that answers my questions.

Thanks: Alex.

[Robh3606]

Hello Alex

That is not a compression driver reversed. Sure look's like one though. It is an 093Ti 3" titanium dome midrange driver JBL made in the 90's. There was an automotive version to the 030Ti. You see them on Ebay from time to time. Attach is a photo of the front panel of an XPL-140 speaker. It has the mid and 046 tweeter.

Rob

[boputnam]

Originally posted by Giskard
We used to build quite a few custom 3-way systems using the 2235H, 2105H, and 2405 with the N65. They came out remarkably well. Better than hoped for.

Hey, Giskard...

I got some very crusty L-pad's in these N65's I'm using. I dismantled and cleaned them all yesterday, but they still have dead-spots / intermittent. Do you know of a comparable L-pad that I might use / get from JBL Pro?

Nearly complete with the modified L65's:
075 (the lad opted for this over the 077)
LE5-8
LE14A

Already got the L-pads mounted, so I need to fit into these baffle holes.

I wondered if the L-pad in, say, the 4312 was similar to the L65 (save me from tearing into my 4312's L/R and have a look...).

Whadya think?

[boputnam]

(talking to myself here... )

Looking at the "N65 Variants schematics, the L-pad's there are numbered "10285". That's the same part number as for the 4312, as I had guessed.

Unless sombody stops me, I'm going in, boys...

[4313B]

10285's are junk!

At the very least use the 58450 L-Pad, if not the ceramic.


10285 L-Pad from Parts Express

58450 L-Pad from Parts Express

51594 L-Pad from Parts Express (8 ohm version - stock was 16 ohm)

[boputnam]

Nice...!

I'm thinkin' the 51594. Looks like it would fit right onto the original N65 L-pad foilcal setup.

Thanks, man.

[4313B]

Yep, just toss that goofy knob and plastic plate in the trash and then you have exactly what JBL would send you; except JBL charges a whole lot more and occasionally forgets to send the washers/nuts

[boputnam]

Meet RH of the pair Modified L65.... Rob has been asking if he could see 'em.

Stereo-imaged pairs. The lad chose the 075's over the 2405 - he thought they looked "cooler". I was OK with that, 'cause the 2405's now can go to the next project.

I'm hesitating completing the LH of the pair, thinking I might just baffle-around with a 128H and do some A/B comparisons. I'll let you know how it goes.

Oh, and grill-cloth (black ) is in-hand, and will be fitted until we find the [i[right[/i] stuff!

[Mr. Widget]

Nice work Bo! I agree with the lad, they do look cool!

[Robh3606]

NICE!!

Thank's that looks great. That 2402 does look cool

Rob

[boputnam]

The only oddity, is that JBL Blue with the white-faced LF. Not seen that before, but it sounds all-good.

Note the offset LF per Giskard's rants (ah, remember the day... ) but that positioning caused near endless iterations to avoid frame collision with the LE5-9 (due to the positioning of it's subenclosure to allow room for the 075). And then there's the 4-in port and 11.5-inch duct! I was going...

[Robh3606]

"The only oddity, is that JBL Blue with the white-faced LF. Not seen that before, but it sounds all-good."

Sure you have Its perfect look at the legacy!

4350!

[Earl K]

Nice Blue !

& a very handsome le14

<> Earl K

[boputnam]

Thanks, Rob & Earl...

I forgot about them ol' 4350's - Yer right! And, those have the oddest mounting for the 2405's - seems the bracket is on front of the baffle. And, it looks like the bracket from a 2402!!

And, my photo doesn't do the JBL Blue justice. But, in-haste, it'll do until I get the duo completed.

[boputnam]

...since they stick in my mind as being the main protagonists for building test boxes. Not exactly a test box, but with the donut on the left cabinet, I was able to trial a 128H in a baffle-cut fitted for the LE14A. The donut and 128H are airtight with dense (closed-cell) foam weather stripping. The duct is unpainted, since it was also customed for this trialing.

As of now, the LE14A "wins" in this A/B blind test.