So many times, so many ways, ad nauseam.............

[Wagner]

And I am sorry to ask it again
Polarity wiring for the L100's woofers
I am working with a late production pair using the 123A-3
The 123A-3 is a negative polarity transducer (positive voltage applied to the red terminal causes INWARD cone movement)
Most everyone here already knows this; I only reiterate this for the purposes of asking my question
I have seen the chart here provided by member "4313B" about which models (systems) are "innies" or "outies") But I have also read that it may contain an error or two:
http://www.audioheritage.org/vbullet...=1023#post1023
(if you look at the photo below you will note that it is the HF driver wired out of phase, going by WIRE COLOR to driver ONLY and not the MF, it is also a fool proof arraignment using the male and female faston type connectors

My question is this: on this pair of L100s do I put the green wire to the red woofer terminal ("innie") or to the black terminal which would in effect make it an "outie"?

I only ask this (yet again) because I have yet to find any L100 owner's manual which does not instruct the user to attach the green wire to the red terminal (or black to black)

I am hoping that when I reassemble these it will be for the last time

I just wish the hell JBL had printed terminal COLOR ID for the DRIVERS on their tech sheets (although they did on the first version of the L100)

Thanks for your patience




This is where the confusion (continues) to kick in; looks like they attached GREEN wires to BLACK and NEG input (LX12-10), so do I adhere to the wire color coding or what! Drives me nuts:

[Odd]

[Wagner]

I see that, that's why I mentioned it
But if you look at the rest of it and the photo of my actual crossover type, you will also note an error with regards to the tweeter's wiring as well as the fact that even though the wire's color is green on the first version's network and attaches to the driver's red terminal it is also attached to the BLACK input terminal

That is why I am still not certain; the INPUT terminal's color versus the actual wire's color versus the traducer's terminal color

"4313B" wrote in another thread which I cannot find that a couple of errors had been identified in that chart

I would think that wire color would rule for the purposes of the assembly line workers

[Odd]

It's just to wire it properly then it becomes good.

Thought you were an expert on JBL

[Wagner]

It's just to wire it properly then it becomes good.

Thought you were an expert on JBL

Don't know exactly what that line means (maybe it's a language thing)
But in other words you don't know the answer (for sure) either, best I can tell
If these boxes are wired using the somewhat standard JBL practice of black, or black stripe always going to the black traducer terminal, then this pair will be an "innie" (again, if I am following your broken English) contradicting the cheat sheet
There is nothing on the L100A (late) model tech sheet to indicate otherwise (or for that matter, the owner's manual)
Thanks for trying though

[Mr. Widget]

I see that, that's why I mentioned it
But if you look at the rest of it and the photo of my actual crossover type, you will also note an error with regards to the tweeter's wiring as well as the fact that even though the wire's color is green on the first version's network and attaches to the driver's red terminal it is also attached to the BLACK input terminal

That is why I am still not certain; the INPUT terminal's color versus the actual wire's color versus the traducer's terminal color

"4313B" wrote in another thread which I cannot find that a couple of errors had been identified in that chart

I would think that wire color would rule for the purposes of the assembly line workers

I would assume the published wiring diagram is correct. Therefore the red + terminal on the input is connected to the red + terminal on the woofer and midrange and to the - terminal of the tweeter. Green appears to be the + woofer wire color.

Since you have access to the actual networks you don't even need to rely on the color code. The woofer connects directly to the input and the mid gets connected to the L-pad with the larger cap.


Widget

[Wagner]

I would assume the published wiring diagram is correct. Therefore the red + terminal on the input is connected to the red + terminal on the woofer and midrange and to the - terminal of the tweeter. Green appears to be the + woofer wire color.

Since you have access to the actual networks you don't even need to rely on the color code. The woofer connects directly to the input and the mid gets connected to the L-pad with the larger cap.


Widget

Good morning Mr. Widget,
Yes, that part is done and confirmed. But if you look closely, you will see that JBL changes up on the wire colors that attach to (and "leave" out to the drivers themselves from the little three lug terminal strip) The tweeter's terminal #2 on it's L-pad is "feed" by a black wire, on the mid's L-pad #2 terminal, the expected white "hot" wire. Going by more than a dozen photos, I do not think that this was an error in any way, it is also confirmed on the schematic as provided by JBL and substantiated by the little < and > symbols (correlates with the fastener types)

In short, the tweeter's RED wire wire, the one which actually plugs into the tweeter is feed by the BLACK input wire which is also the same wire which feeds the BLACK wire which ultimately goes to the woofer.

I have looked at numerous photos, that along with the fact that the tweeters wires are the only two treated with the the use of fastons and once again gives rise to my uncertainty as for woofer wire orientation.

Go with the color code protocol or the often discussed "switch 'em when dealing with the 123A-3?

IF I knew with certainty that the first wire drawn on all JBL tech sheets was in fact the conductor going to the RED terminal on all individual transducers then any and all questions regarding this subject could be put to bed

[4343]

JBL may have wanted the box to be an "outie" so that they would not have some versions of the same line being opposite. Thus the switch of the woofer wires colors. The first schematic has the wires swapped, red input feeds black terminal on woofer. That makes it match other manufactures "absolute" polarity when used with the "innie" woofer. The second one has black input going to black terminal on the "outie" woofer, again matching everyone else, and the original L100.

I think the tweeter flip has more to do with the crossover devolving from second order to first order.

Unless your crossover does not match the diagram, trust the color code...