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Old 28th April 2013, 08:41 PM   #11
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After reading this thread I come across a pair of EV Sentry IVs advertised in the Los Angeles Craigslist. The guy only wanted $100 for the pair so I jumped on them. I've just brought them home. All of the parts are there but the cabinets need some work. They spent a year exposed to the southern California sun and definitely show the damage. Yours are clearly in much better shape.
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Carl Huff
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Old 29th April 2013, 12:16 AM   #12
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My horn is done at 60 both in path length and circumference. The corner, and a bit of eq, gets it as low as it needs to go. Of course another octave down would be fun but that's where my friends surplus 2245s might fit in...the "ring of fire"
won't be going on in my low power world.
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Old 29th April 2013, 01:00 AM   #13
Pano is offline Pano  United States
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Nice find, Carl. Congrats on that.
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Old 29th April 2013, 04:31 AM   #14
galyons is offline galyons  United States
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Quote:
Originally Posted by Carl_Huff View Post
After reading this thread I come across a pair of EV Sentry IVs advertised in the Los Angeles Craigslist. The guy only wanted $100 for the pair so I jumped on them. I've just brought them home. All of the parts are there but the cabinets need some work. They spent a year exposed to the southern California sun and definitely show the damage. Yours are clearly in much better shape.
That's a steal! Good job! How are the drivers?

Cheers,
Geary

Last edited by galyons; 29th April 2013 at 04:32 AM. Reason: Typo
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Old 29th April 2013, 04:25 PM   #15
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The previous owner had bought them new back in 1978. He still had the sales receipt for $1300. He used them regularly right up until just a few years ago. When he took them out of service he removed the horn and crossover assemblies and stored them inside. The cabinets were put under a tarp in a storage shed and more recently outside up on cement blocks. At some point squirrels got inside and chewed holes in the the drivers. As result the EVM 12L drivers will all need recone kits. Those are $60 apiece. I will do the recone myself. The crossover, tweets, mid horns & CDs are all in good condition.

After getting them home I more closely examined the cabinets. They are not in as bad of a condition as I had first thought. Only the outer veneer of the plywood is damaged and only on a few panels. All corners and joints are still tight. EV used a quality plywood when they built them! I think a couple of busy weekends spent using a belt sander, poly resin & hardener along with a good industrial primer should make them look like new again.
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Last edited by Carl_Huff; 29th April 2013 at 04:27 PM.
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Old 29th April 2013, 08:18 PM   #16
nhuwar is offline nhuwar  United States
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Bondo is your friend, if your just going to psint them thst is.

Nick
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Old 29th April 2013, 08:33 PM   #17
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Yea, I agree. However I try to 'seal down' anything that is even marginally loose with polyester resin using a squeegee and then fill holes and depressions with a quality bondo before I paint. Rage is my current favorite 'Bondo' product: Evercoat
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Old 1st May 2013, 03:18 AM   #18
galyons is offline galyons  United States
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Carl,
Need pics, squirrelly woofers and all. If your mid horns are like mine, I would suggest threaded inserts for mounting the tweeter rails rather than wood screws. I have plenty of 8-32, gladly send you some.

Cheers,
Geary
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Old 1st May 2013, 03:23 AM   #19
galyons is offline galyons  United States
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Here are my before and after pics on the Gefco woofers!

Cheers,
Geary
Attached Images
File Type: jpg Old foam.jpg (90.4 KB, 46 views)
File Type: jpg Old Foam 2.jpg (131.5 KB, 44 views)
File Type: jpg Like new. drying.jpg (114.0 KB, 46 views)
File Type: jpg Back in bass bin.jpg (110.2 KB, 46 views)

Last edited by galyons; 1st May 2013 at 03:32 AM. Reason: photo challenged!
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Old 1st May 2013, 03:29 AM   #20
galyons is offline galyons  United States
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Here are the mid horn tweeter rails repair in process:

They just kept using bigger wood screws and more glue! I replaced with 8-32 threaded inserts and SS cap screws.


Roughed in repairs with 2 part epoxy putty. I used small brass wood screws to form foundation posts in the broken out structure.


Cleaned up wood screw holes in the "undamaged" horn, screwed in threaded inserts with Gorilla Glue.


Cheers,
Geary
Attached Images
File Type: jpg Big,bad,ugly.jpg (95.7 KB, 44 views)
File Type: jpg Midhorn screwed.jpg (95.1 KB, 17 views)
File Type: jpg Midhorn, not screwed.jpg (106.2 KB, 19 views)

Last edited by galyons; 1st May 2013 at 03:47 AM.
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