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Well ..........., at this point I guess I have two viable options for restoring and upgrading the L200As.
The first option is to build a new network as per the schematic in the JBL Technical Manual...

Gentlemen all the feedback is greatly appreciated.
I am about to undertake a relatively significant project restoring and upgrading the L200As and your feedback will help me do it "right" the first...

Robh3606
Thanks for the suggested method of determining the actual impedance of the LE15B and the Thiele / Small table.
As stated in my original post the DCR of the two L15Bs is 3.5 and 3.8 ohms...

The actual impedance of the LE15B woofers is the big unanswered question.

There is so much conflicting information in the JBL documentation I am not sure what to believe.

Is the impedance 4, 6...

HJames thank you for the qiuck reply.

I have built the network that you specified for a set of 4333s that I built from scratch.

It is a great sounding network but I am not sure that the...

I recently aquired a set of L200As that were upgraded with N8000 networks and 077 slot tweeters

The upgraded L200A speakers include LE15B woofers, LE85 mids, H-91 horns with diffraction grates,...

Gentlemen
Thank you very much for your simple but eloquent solution for adding a 2405 tweeter to my 4430s.
Last night I built simple crossovers using 8 ohm L-pads and Solen 0.1 uf caps bypassed...

Over the last five years with the help of information posted on the Lansing Heritage wesite I have built two pairs of 4430s and one pair of 4333s. All three pairs of speakers were built using the...

Toddlin

Sorry! I ment to say that I am planning on building a L200B (not L200A) crossover.

Regards
Wlk

Earl K & Zilch

Thanks for the pointer to the CLIO measurements of the PH 230 and the excellent plots. It appears that the usability of the PH 230 at 800 Hz is questionable. It appears that a 1K...

Toddalin:

Thanks for the additional information on the PH230s. I am going to order a pair and try them.

Any advice on the crossover point? The specs say 600 HZ but that seems a bit low...

Zilch

You are right. The stock 2344 horn does not have ports. The 2344 is a two part horn assembly, the 2344A is a single part assembly. The 2344A has a tendancy of breaking at the throat if not...

I have been away for a few days and just logged on to review the latest suggestions from form members.

Thanks to all for the excellent information and especially the different points of view.
...

Subwoof:

Thanks for the suggestions.

I am planning on making a more modern cabinet design for my clone L200 / L300s similar to the design I used for my clone 4430s. It is more of a colunm...

Heather:

Thank you for the link to your thread. I read the whole thread from start to finish and found the information very usefull and the banter between form members very entertaining. You have...

I have just completed building two set of clone JBL 4430s in custom oak cabinet and I am starting to collect JBL components for next winter's speaker project.

I have a pair of freshly reconed JBL...

Subwoof
Thanks for the excellent additional information.
Regards
WLK

Rob & Wiget

Thanks for the excellent information.

Regards
WLK

Rob

Thanks for the help. My 2231H looks exactly like yours. I have never seen a ferrite 2231H before.
Does anyone know when they were made?
Does anyone know if the grey ferrite 2231H and the...

I recently aquired a very strange blown 15 inch JBL that has a JBL factory label that says "2231H" " 8 ohm". The frames is a light grey, textured like the paint on a 2420 HF driver and the frame has...

Zilch:
Thanks for internal volume and port specifications for the LE14A box. It appears that the L100T cabinet would work with the LE14A if I adjust the port size.

Duancage:
My L100T networks...

I am soliciting opinions on the the desirability of retrofitting a pair of JBL L-100t's to use JBL LE14A LF drivers.

The cabinet specfications for the L-100t's and the 240Ti's are as follows:
...

I started this thread about a week ago because I had purchased a pair of Altec Santiagos and I requested help in porting the cabinets because I was not satisfied with the amount or quality of the...

Would anyone have a schematic for an Altec N801-8A network and 30904 attenuator as used in the Santiago 878B?

I am planning on rebuilding and upgrading these networks and I would like to know the...

John B and GordonW thanks for all the suggestions on how to modify the JBL 4410 crossover to work in my modified L220s.

Regards
WLK