Vintage Richard Long Bertha/vintage JBL - diyAudio
Go Back   Home > Forums > Live Sound > PA Systems

PA Systems A forum for discussion of all parts of a sound reinforcement or DJ system: loudspeakers, mixers (desks) etc.

Please consider donating to help us continue to serve you.

Ads on/off / Custom Title / More PMs / More album space / Advanced printing & mass image saving
Reply
 
Thread Tools Search this Thread
Old 24th June 2012, 09:58 PM   #1
diyAudio Member
 
Join Date: Jun 2012
Default Vintage Richard Long Bertha/vintage JBL

I have come in possession of a vintage RLA Bertha speaker cabinet. It's huge. With it are two very large JBL pa/stage speakers with separate cabinets that sit on top. I was told they have not been used since the early 1980's. There are also two other large speaker cabinets. I'm posting to see if there is any interest. I will be putting them up for sale soon. Thanks, Steve
  Reply With Quote
Old 28th June 2012, 04:53 AM   #2
diyAudio Member
 
Join Date: May 2005
Location: toronto
I did some work with Richard and know some of his boxes. Maybe I can identify the particular design.
  Reply With Quote
Old 29th June 2012, 01:00 AM   #3
diyAudio Member
 
Join Date: Jun 2012
Hi. I can send you some pictures if that's possible. I just joined this forum.
  Reply With Quote
Old 4th July 2012, 10:42 PM   #4
tomi is offline tomi  Wales
diyAudio Member
 
Join Date: Dec 2004
Location: The North
Not interested in buying I'm afraid - but I'd love to see some pictures if you have them, just for interest's sake.
__________________
Don't Fear the Repair
  Reply With Quote
Old 5th July 2012, 01:08 AM   #5
diyAudio Member
 
Join Date: Jun 2012
Default RLA Bertha JBL speakers

If you give your email address, I'll send a bunch.
  Reply With Quote
Old 5th July 2012, 02:05 AM   #6
diyAudio Member
 
Join Date: Jun 2012
Hi. I pulled the back off the Bertha and the subwoofers had this marked on them:
18016 67-8525.
  Reply With Quote
Old 5th July 2012, 08:19 AM   #7
diyAudio Member
 
Join Date: May 2005
Location: toronto
Please post a couple of pictures of Bertha drivers and the other boxes on the DIYAUDIO site if you have them. It would help identify them.

The part numbers you give are likely the custom Eminence (maybe RCF?) cone kits or drivers for the woofers used in the Bertha. The 8525 may be the date code of manufacture - 3rd week of June 1985 which would be late in Richard's career - he passed away in Dec 86. Be carefull in thinking better woofers like JBL, Celestion, EV etc will give better results in a Bertha - I've seen Berthas with large Crest monoblocks destroy the surrounds and cones of "better" drivers substituted into them in a couple of hours, while the original drivers last years at high SPL use. The cone mass, compliance of the surround, and speaker coil and motor parameters all need to be optimised for the high pressures, rear chamber volume, and loading of the Bertha (or any) bass horn.

Last edited by ticknpop; 5th July 2012 at 08:34 AM.
  Reply With Quote

Reply


Hide this!Advertise here!
Thread Tools Search this Thread
Search this Thread:

Advanced Search

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
FS: Vintage drivers- SEAS, JBL, Jensen, Bozak, etc GordonW Swap Meet 1 3rd April 2011 05:52 PM
New & Vintage compression drivers, horns, JBL, Emilar, BMS dogbert Swap Meet 8 9th February 2011 05:34 AM
can any one help id these vintage richard allens steptoe1111 Multi-Way 0 1st May 2010 12:38 PM
4 Sale: Vintage JBL L40 Adjustable Crossover "Pair" (2 way) Minion Swap Meet 3 22nd January 2007 06:41 PM
Vintage diy IsakAlexander Solid State 5 7th October 2006 03:01 PM


New To Site? Need Help?

All times are GMT. The time now is 07:24 AM.


vBulletin Optimisation provided by vB Optimise (Pro) - vBulletin Mods & Addons Copyright © 2014 DragonByte Technologies Ltd.
Copyright 1999-2014 diyAudio

Content Relevant URLs by vBSEO 3.3.2