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View Full Version : What is the model M-31 JBL ?



joe.shephard
02-27-2007, 06:52 PM
I am trying to find out the history of a JBL M-31 spkr. I understand it was used in musical instrument amplifiers. Is it the same as a D-130 ? If not what are the differences? Also approximately when was it manufactured? I look forward to a response. Thanks.

grumpy
02-28-2007, 06:48 AM
http://www.google.com/custom?hl=en&cof=S%3Ahttp%3A%2F%2Fwww.jblpro.com%3BL%3Ahttp%3A% 2F%2Fwww.jblpro.com%2Fjbl-pro-logo.gif%3BLH%3A100%3BLW%3A100%3B&domains=www.jblpro.com%3Bwww.jblproservice.com&q=M31&btnG=Search&sitesearch=www.jblproservice.com

Check "Transducer Replacement List.pdf"

JBL Dog
02-28-2007, 07:20 AM
I am trying to find out the history of a JBL M-31 spkr. I understand it was used in musical instrument amplifiers. Is it the same as a D-130 ? If not what are the differences? Also approximately when was it manufactured? I look forward to a response. Thanks.

The JBL M31 was manufactured for use in the Peavey Session 400 Guitar amp.

It was baically an alnico D130 and was available in 4 and 8 ohm versions.

grumpy
02-28-2007, 08:12 AM
Found this, re dating... hope that helps some:

"... There should not be a Session 400 amp earlier than a 1974, unless
a prototype is floating around the country somewhere. Thanks for your interest.
Mike Brown
Peavey Electronics Corporation"

Zilch
03-01-2007, 06:37 PM
http://cgi.ebay.com/VINTAGE-JBL-M-31-15-SPEAKERS-8-OHMS-M31_W0QQitemZ130085517216QQihZ003QQcategoryZ50597Q QrdZ1QQcmdZViewItem