EV Sentry III

Status
Not open for further replies.
Jump to Latest
#2
Hi Toralf

AFAIK the Sentry III was the one with the double-folded bass horn (for 2x12"), wasn't it ?

I don't have the plans for these but I have the plans for one of it's "younger brothers" the 4025, which is a double folded hypex horn for 1x15" if they are of any value to you.

Regards

Charles
 
#3
I have this pic, and the only other data is that it uses the SM120A midrange flare.
 

Attachments

  • sentryiii.jpg
    sentryiii.jpg
    25.8 KB · Views: 726
#5
No - the Sentry III isn't a 2x12. Brett's picture is accurate. That picture looks just like the pair I have here. Wonderful speakers until you have to move them. At 150+ pounds each they can be tough to move around.

I'd love to see any schematics or whatever anyone has. As small shops go out of business that can repair these, I'll need to do it myself. Wonder if I need to stock up on woofer cones - the rubber surround doesn't seem to last long.
 
#11
BAM said:
At Purdue University we have some Sentry IV speakers with a W-bin midbass section in some of the lecture halls, but they sound like poo. I wouldn't waste your time.
Click to expand...

The Sentry IV are never listed among top-quality speakers. The Sentry III often are. Whatever they did right with the Sentry III, they didn't do with the Sentry IV.

The mid-horns are incredibly clear and at the maximum of 50W, they'll do 127dB SPL - loud enough to kill small animals. The efficiency and clarity are wonderful, but you really need a massive room. Speaker positioning on these seems really important, positioning is tough because of the size and weight, and you have to be about 50 feet away to appreciate the sound to the fullest

As for the comparison PDF, if its the German one, I have it. I can put it online somewhere if someone wants. I don't read German though. Also the scans of the graphs are very poor quality and it makes it really hard to make out. I may remove the papers and graphs from the back of the speakers and scan them as well.

I would definately like to see schematics. Right now, I'm not using them bi-amp, so the internal crossover is used. They are really old, and I'm thinking they made need to be replaced or repaired. The veneer on them definately needs some wood bleach, a restain, and a sealer. They are no longer nice to look at from people using them as tables.

I've had a local shop (freeman tuel - known nation-wide for speaker repair especially of older ones) repair them once (woofer cones and fixed a broken magnet), but they are expensive to take in and have repaired (and they need a truck to move them).

I've found a few surround repair kits where you just replace the surrounds, and reglue them on, and I think I'm going to try those as they seem to match the originals pretty well. I'd like to find specs on the crossovers so I can test them and maybe replace them, and I'll do the wood if I bother taking everything apart.

-- Evan
 
Status
Not open for further replies.
Top Bottom