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Old 20th February 2012, 05:51 AM   #1
AndyEMT is offline AndyEMT  United Kingdom
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Default Westrex speakers

I'm trying to find some information on some newly aquired Westrex speakers. These are not the usual Acoustilens system but could be a development of it.

They use 2080E bass drivers and 2390A mid / highs. The crosover uses big air cored inductors and is located between the drivers

The 2080W has a brass mass ring around the circumference of the dust cap and the 2390A is a reversed 2090 with no back effectively using the diaphragm as a 4" dome transducer.

The cabinets have non parallel sides and the porting is similar to that found in B&W DM2's

They sound incredible, deep solid and natural sounding bass. The mids and highs are fast and detailed with a wonderfully natural tone.

Last edited by AndyEMT; 22nd February 2012 at 04:23 AM.
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Old 20th February 2012, 06:01 AM   #2
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Old 21st February 2012, 09:28 AM   #3
VaNarn is offline VaNarn  Australia
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Information from a Hi Fi Year Book dated,1959 describes the 15'' 20/80 as having a 3'' voice coil of edge wound copper ribbon working in a magnet of 1.32 T.16 Ohm with a power handling capacity of 30 W. The other unit in your picture appears to be a cannibalised version of the same makers H.F. Unit,with the rectangular horn removed and the acousticlens that was fitted to the horn,placed in front of the diaphragm in a reverse position.
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Old 21st February 2012, 08:53 PM   #4
AndyEMT is offline AndyEMT  United Kingdom
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Yes you're correct it is a reversed 2090 driver but is an OEM convesion by Westrex.

I have all the yearbooks from the 50's through to the 70's and lots of period magazines but I can find no reference to either these speakers or the 2390A driver.

An old friend who was in the hifi trade in the early sixties thinks they were a development of the Acoustilens into a better domestic product, but Westrex then pulled out of the market before they were on general sale. I don't know if this is true but is certainly plausable.

There is anecdotal evidence this pair were once owned by GEC.
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Old 22nd February 2012, 01:39 AM   #5
VaNarn is offline VaNarn  Australia
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Only someone connected with the Westrex Co.Ltd. will have an explanation concerning this 'special'.The brass ring fitted to add mass, is an indication that an attempt has been made to operate the 15'' in a smaller enclosure and since the sensitivity will drop as a result the surgery on the H.F. is a further effort in size reduction.I can well believe that what you have is a lab. special and a connection to General Electric,quite possible,as they had an anechoic chamber available.Any thoughts of converting it back to the original driver configuration as you have most of the parts?
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Old 22nd February 2012, 05:11 AM   #6
AndyEMT is offline AndyEMT  United Kingdom
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I think changing the 2390A back to a 2090A with horn would be a retrograde step. Many years ago I was fortunate to hear a pair of original Acoustilens speakers and although my recollections may be a litle faded, I think these are a more acomplished speaker, certainly in a domestic enviroment. They have all the fabulous attributes of the Acoustilens but have an extended frequency range both top and bottom and the stereo imaging in both depth and width is the best I've heard. Comparing them to my JBL Array 1400's and BTH K10A's, I think the Westrex is the better speaker.

Sensitivity it not an issue. A few watts drives them very loud indeed.

I'll definitely need to do some more reasearch.
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Old 1st September 2012, 10:36 AM   #7
Zoran is offline Zoran  Serbia
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AndyEMT
I have those drivers working
even measured TS for the 2080E unit
Theese cabinets You are talking about, are probably from Litton Westrex?
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Old 2nd September 2012, 08:09 AM   #8
AndyEMT is offline AndyEMT  United Kingdom
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Quote:
Originally Posted by Zoran View Post
AndyEMT
I have those drivers working
even measured TS for the 2080E unit
Theese cabinets You are talking about, are probably from Litton Westrex?
Hi Zoran

I think they pre date Litton Westrex as they are circa 1961/2 and the frivers have the black and silver foilcals rather than the later blue and siver Litton used.

The cabinets with drivers weigh about 55Kg each and I think were developed with assistance from GEC.

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Andy
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Old 2nd November 2012, 10:33 PM   #9
Zoran is offline Zoran  Serbia
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The very same cabs I had but I took out the drivers and put them into
different solution. I had 4 cabs with 4 pairs of LH and HF drivers
little different ending marks
Westrex 2080E (brass ring, 5 holes on cap)
Westrex 2930A HF unit
I put them like lower and upper in OB U-frame
HF also
I removed the chamber and release the compression effect
now I am playing in dipole mode
with
Karlson horn at one side and lenses on the other side
.
I exchange original metal black lenses with custom made
wooden pieces...
.
the central unit is RCA LC1A (HF unit disconnected)
.
Beyond the 36db/oct for HFs they still little stronger then others
and I have to design a step-down transformer to move down the level and in the same time forms a 18db cross with a C elements on prim and sec...
.
Also I have to finish and make it correct the 24db/oct crossover for the low end. I put the some improvisation just to have a touch with.
But that should be more correct.
.
cheers
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Old 2nd November 2012, 10:38 PM   #10
Zoran is offline Zoran  Serbia
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the WE2080E is the predecessor of the altec 515 model
it could be concluded by quick look on the elements structure
2080E is more rough and harshly accomplished
then 515 which is more elegant and softly finished
2080E are cca. 18Kg per piece
and completely removable modular parts of moving elements
Which is good.
the WE2930A are also modular and easy to open and close back.
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