Advice required on restoring 4503AWX 3's / 4333's

[andywin]

I noticed what looks to be an Pio. RT707/701 in one of the pic's, is that any good?, I've got one collecting dust and it is 100% functional.

Yes it is a RT707, It's not bad at all. I use it for a number of 4 track pre recorded tapes that I have.
I also have a telefunken M10... As good if not better then a Studer C37 and an Ampec PR-10 4 track that requires a new belt.... A seemingly hopeless quest.

Not shown for vinyl replay are: EMT 930ST, EMT 938, Garrard 401 and the silver case on top of the 4505 is a Westrex garrard 301 (super rare)

[Steve Gonzales]

pretty impressive rig, I LOVE it!

[Audiobeer]

I've recently aquired a pair of JBL's that have 4503AWX cabinets. Am I right in assuming these are 4333's?

The cabinets require some serious restoration as the veneer is in fairly poor condition and I am missing grills and the foil scale indicator for the front L pads.
Is it possible to get these folis anywhere and hoe do I make up the new grills.

The veneer looks restorable, with a little TLC you can turn them around!

[andywin]

Thanks to all for the advive and encouragement on the cabinets

Is there any hope of locating new or old foilcals? and where can I source the brown JBL cloth (I intend to match the fronts to the L200's)

[Dave G]

I need to know the compression driver used on the mid on your centre speaker. It would be 1 inch throat or 375 2 inch type, mine is 375 and this speaker may be from the same batch as mine if it is 375 driver.

Lots of holy grail items, in fact you appear to have them all

I would expect your veener to restore after looking at the photos.

[andywin]

[QUOTE=Dave G]I need to know the compression driver used on the mid on your centre speaker. It would be 1 inch throat or 375 2 inch type, mine is 375 and this speaker may be from the same batch as mine if it is 375 driver.
QUOTE]

Unfortunately no 375 to be found. I reached through the port and the throat of the horn is definitely 1" so it's safe to assume its a 2420. It does sound good though. I actually prefer its 2215 to the 2231's in the 4333's and I find the 4202 tweeter smoother than the 4205's. Maybe it'sthe crossovers (LX5 & N7000). Cabinet construction qualityvis better than the 4333,s too. What horn do your pair use?

[andywin]

[QUOTE=Earl K]NEAT !

You're the first forum member to ever show any BTH, K10A duplex ( even if it was inadvertent ).
Here's another pic for those interested in this rarity
QUOTE]

Earl, well spotted!
My copy of wireless world from May 1957 advertises the K10A ( for home use)at £50 inclusive of crossover but without cabinet. That was an enormous sum of money in 1957.
For an 18" speaker, the crossover is higher than I expected at 1,700Kcs. Must be to do with the length of the horns. It was my bargain of the century as I only paid £1 including crossover The guy I bought it from only had one that a friend had given him to use with his guitar but it just gathered dust in his garage. His mate had another six but he has lost contact with him
Which came first...The Altec 604, BTH K10A or the version Parmeko marketed (can't remember the model) although I think that was a 12"

[Dave G]

My use HL 91 or 93. Can't remember exactly which but a short horn with lens as per your centre. All your speakers should sound good, I 'm sure there are some hours of tweaking ahead to bring the 4333 up to spec.