Mystery Electro-Voice 3-way speaker

quoydoy · 29th June 2008, 04:48 PM

Greetings wise men and women.

These speaker cabinets were part of a large console thrown away at the dump where I work yesterday.

The main console had a turntable and a reciever--"E-V 1177". I plucked the reciever.

The two speparate speaker cabinets weighs 75 Lbs each. Internal dimensions: 24 1/4" H, 17 3/4"W and 16 5/8" deep.

Speakers: TW 35 VHF Driver, Wolverine, 40 Watts Peak, 8 ohms.
EV MR10A 8 ohms
LS 12 A Full range Loudspeaker, Wolverine, 40 watts
8 ohms.

Inside the cabinet, 3 faces are covered with "fiberglass". There is no crossover, the speakers are connected to "T1 & T2" on the LS 12.

They work. They seem to have amazing treble and mid, but lack bass.

Have a look at the pictures to follow.

Since the only identifying marks on the speaker cabinets are "46" written in black marker on the back of each, anyone know what model these would be? Any idea why there is no crossover? Would a duct/port improve bass response?

I listened to bits of Beethoven's 5th, Strapping Young Lad, Astor Piazzolla, and Waking Life Soundtrack. They do sound "good".

Let me know what you think.

Thank you.

Best wishes,

Brian

quoydoy · 29th June 2008, 04:50 PM

Back.

quoydoy · 29th June 2008, 04:52 PM

LS 12 A

quoydoy · 29th June 2008, 04:53 PM

LS12A Front

quoydoy · 29th June 2008, 04:55 PM

TW35 VHF driver.

quoydoy · 29th June 2008, 04:58 PM

EV MR10A

quoydoy · 29th June 2008, 05:01 PM

Side View Showing depth.

Not mentioned are 2 slots, 2" x 6", beneath the LS 12 on the mounting board. No ducts attached

rcavictim · 29th June 2008, 05:13 PM

Nice score! Perhaps the crossovers were in the electronics package as opposed to the usual route of putting them in the speaker cabinets themselves?

I caution not to run full range power (containing bass energy) to the mid and high horns! It would be easy to damage their drivers.

I think that 12 inch Wolverine is considered a wide (full) range speaker all by itself and would likely have very high efficiency. I have a similar pair of solo 12 inchers from EV that are very flea power tube amp friendly in 4 cu ft BR boxes.

sreten · 30th June 2008, 10:47 AM

Hi,

to work well they must use a crossover of some sort. You risk
destroying the mid and treble drivers, fit capacitors at least.

The cabinet appears to have an open duct below the 12".

TBH the mix of drivers is strange, 12" twin cone would normally
only need the tweeter adds, not the mid horn, the mid horn
suiting a more robust bass driver.

Some capacitors and L-pads may improve matters.

/sreten.

quoydoy · 30th June 2008, 01:25 PM

Thanks for your comments Bob and Sreten. The following link references all three drivers used in another speaker with crossovers referenced.

http://www.canuckaudiomart.com/detai...s_wev_drivers/

I'll keep snooping around for more info.

best wishes,

brian

29th June 2008, 05:13 PM	#8
rcavictim diyAudio Member Join Date: Jun 2004 Location: Cool end of a soldering iron NW of Toronto	Nice score! Perhaps the crossovers were in the electronics package as opposed to the usual route of putting them in the speaker cabinets themselves? I caution not to run full range power (containing bass energy) to the mid and high horns! It would be easy to damage their drivers. I think that 12 inch Wolverine is considered a wide (full) range speaker all by itself and would likely have very high efficiency. I have a similar pair of solo 12 inchers from EV that are very flea power tube amp friendly in 4 cu ft BR boxes. __________________ I.Q.Test. Have you ever purchased a recreational snowmobile?

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30th June 2008, 10:47 AM	#9
sreten diyAudio Member Join Date: Nov 2003 Location: Brighton UK	Hi, to work well they must use a crossover of some sort. You risk destroying the mid and treble drivers, fit capacitors at least. The cabinet appears to have an open duct below the 12". TBH the mix of drivers is strange, 12" twin cone would normally only need the tweeter adds, not the mid horn, the mid horn suiting a more robust bass driver. Some capacitors and L-pads may improve matters. /sreten.

30th June 2008, 01:25 PM	#10
quoydoy diyAudio Member Join Date: Apr 2008	Thanks for your comments Bob and Sreten. The following link references all three drivers used in another speaker with crossovers referenced. http://www.canuckaudiomart.com/detai...s_wev_drivers/ I'll keep snooping around for more info. best wishes, brian

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