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Hi, hoping someone can recommend / link a replacement part to suit this 2 pole switch from an old Altec 1569a?

Sure it must be simple but i cant find an exact part and would like to make sure...

Thanks Ian, really appreciate that.. Now to either find some 435AL-1 ... or repair that diaphragm.
If i thought it wouldn't potentially damage the working diaphragm i have in the other 435AL i'd...

That is much appreciated kind sir, and i don't mind starting a bit of a 435 dynasty series..;)

Thanks Ian, well if Greg said it was so i think thats good enough verification. The question then remains do i search out 2 x 435AL-1 from JBL synthesis for matching mid horns.. Or just buy the 2431...

Well your right about them not being very helpful.. Tried contacting them to no avail.
I did notice the model in the SAM1HF seems to be a 435AL-1 which may well differ from the 435AL?
Which puts...

Wow, now thats a good lead, i had no idea they were still in production, you'd think they'd be able to spare one if that were the case for such a great speaker like the 4348.
but then..... anyway...

Ahh ok great good to know.
Yes its a bit of a mystery the old 4348.
I had hoped to simply buy another 435AL and not need to worry about all this but that hasn't proved easy, so its onto this...

Thanks Earl, great and very useful info, seems like a feasible option to buy the 2431 and use that in its place, assuming you are 100% that this is the correct option for the 435AL?
I want to be...

No they are not touching, i should have taken a shot from above, but no they are about 2-3mm away from the ring.

2 more pictures as mentioned of the diaphragm connection points on the malfunctioning 435AL
89546
89547

At this point its probably best to insert some photos of both the 2435 & the 435AL (which i have opened up).

Ian, when you are back in town (assuming we will then be out of lockdown) and assuming...

Thanks all for the input, regarding your post first Ian, that seems like an appropriate solution, but well beyond my capabilities in terms of technical knowledge.. and since we are in heavy lockdown...

Hi all, im having difficulty with the repair option.. So ive started to investigate the option of replacing with a similar spec JBL driver. I have tried the JBL 2435HPL in its place which seemed to...

yessir! Will do, still in motion..

Hi All, i really could use some help finding the right avenue to go down regarding a dead 435AI driver in my 4348 monitors, showing 0 resistance & no sound.
Who in the world is the best speaker...

Well i have a pair of these i just bought locally in Sydney Australia, and to my dismay one of the 435AI horns is not working. pics attached of the good, the bad & the ugly truth.
Not easy to source...

Hi, im just wondering if anyone knows the product JBL uses for the 4348 (or 4344 series) speaker veneer, or just the best way to bring one side of the speaker back to life after a sustained bit of...

GREAT! very helpful thanks

Hi all, after an unfortunate incident the two binding posts on one of my JBL Mastering Labs Dividing Networks (Model 604/5) were snapped clean off.. Since i cant see any good way to resolder them i...

Great thanks a bunch Rob, good link there for some searching........

THanks Rob, yes another bar i was in in Tokyo had these small speakers hanging all over the place from the ceiling (like lights).. I assume they had a 4-6" cone and a tiny tweeter on each one.. and...

Hi All, i have an abiding interest in all things Altec & horn loaded, I currently run an Altec A7 system with some Altec 1569 mono blocks in my studio.. And at home a Mcintosh 240 with some TAD...

thanks Peter, the back is actually open not sealed, but the valves sit quite deep in the box as it is around 16 inches deep so i fear that wont offer much heat escape.I am loathe to put holes through...

Hi, I have a pair of Altec 1569a power amps built into some timber boxes just like the ones in the picture77583 attached.
Can anyone comment as to whether they will run too hot and shorten valve...

ok many thanks for the input