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Another Electro Voice Interface D/Sentry VI thread.

I'm not looking to change anything on my speakers except to repair a blown woofer. Just can't seem to find a recone kit anywhere !
 
when I had mine refoamed the tech had to outside of EV to find the proper fit,im think he used one from jbl.If I remember its been a few yrs he bought a pair that were over sized and had to trim them a bit.
Sadly just shipped my EV'd s out this morning...sad day for me as I realy enjoyed them,im drowneding out the sorrow with 1964 Braun L-1000's now..
Gone but not forbgotten that's for sure
Hunter
 
preparing for the surround, surround rear and center

I am now in the process of matching and selecting the VMR's and ST350's for Center, Surround and Surround back.

In the picture you see 7 VMR's , 6 ST350b, 1 ST350a and 4 T35b's.
This is beside the set already running in the front speakers.

As the Left and Right main have ST350a's I will dedicate the single ST350a as the tweeter for the Center.
The other 6 sets are measured and selected to form the Surround (side) and surround back and then two complete sets as spare.

It's going to be a fun weekend.
 

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Perter, what did you decide on for the ST350 circuit compensation re being a constant directivity design?
 
PeterSchut said:
Hi Guys,

Attached some more pictures of the progress.
The last bit cost me again a full day (just mounting the front panels)

Man these things are getting heavy.

The next thing is mounting the speakers and filters of the front channels.
Need to do some work on the filter of the center and surround.
I also started to match the 7 VMR's with 7 ST350b's (that is beside the front speakers units as they originated from the original Interface D)

Cheers
Click to expand...



Mind = BLOWN
 
totem said:
Perter, what did you decide on for the ST350 circuit compensation re being a constant directivity design?
Click to expand...

Nothing, I just copied the circuit from the original Interface D.

I need to compensate the VMR slightly as I have a dip in the 2-4k range.
This dip was less visible with the original filter (I am puzzled but the thicker wire inductors are most likely the cause)

I am not an expert but in my opinion constant directivety is a mechanical property of the horn design, and not influenced by the filter.
I focus on -on axis- flat response.

Peter
 
They are done

Hi forum,

The set is done....... pfffff more work than I anticipated.
Need to perform some listening tests but so far they don't disappoint.

The EV Force 10 didn't work in this application and are more suited for musical instrument amps like guitar cabs. The mids were hard to tame.
So i decided to buy also the Eminence for the center.

Now enjoy for a few weeks and then the side speakers (with no woofer) and the Atmos ceiling speakers where i have not decided on the units yet (love to use the T35b there, but might not be practical.

For the rest see attached pictures
 

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and some more pics
 

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Beautiful work.

Not knowing anything about speaker design, I wonder if you sat them side by side, if one could discern a difference with the port in the back verses bottom?
 
Coytee said:
Beautiful work.

Not knowing anything about speaker design, I wonder if you sat them side by side, if one could discern a difference with the port in the back verses bottom?
Click to expand...

The big Speakers have the port in the bottom (see thread 156) and even though i did not put them side by side (not practical using the same units) I did use the original units with new filter for about two months. I then moved in one day to the new enclosure and the extreme more rigid and heavier damped enclosure made the LF way more defined, dryer and cleaner (most likely also less in volume).
The mid/high section did not change much as expected. But overal a much more balanced sound especially with higher volumes where the original enclosure vibrates quite a bit.

The enclosure with the port in the back is the surround speaker with the 10 inch woofer. The port sits in the back because there was ni space in the bottom. Because all 5 speakers use a VMR an ST350a/b they have a very comparable sound. The "little" surrounds (50 liter vs 111 for the new D) produce quite some low end as wel.
 
Iv'e been following this thread for quite some time. I am considering a similar project in the future but for now, I'm playing around with a pair of ev 15-3's. Had to change the woofer, the 15L is more like a midbass driver. I'm using TAD 1601's with much better results. I had to block one port to lower the tuning and also boost the low end at around 35 hz. These are often overlooked as old junk and sell pretty cheap. To me they are gems in disguise!
 

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Very cool, Pdevil. I have a pair also, and was actually going to try subbing in some refoamed woofers from EV Sentry III. I have a TAD 1603 single that I'm sure would sound awesome, but I only have one at the moment. I'll have to try stuffing one port also.
 
absolve2525 said:
2/2 pictures, more in previous page
Click to expand...

Hi Absolve

Can you tell me bit more about the VMR covers on the pictures you posted in post #121 of this thread.

I would love a set for two extra VMR/ST350 only very shallow surround speakers that will be placed dierct on the wall.

Thanks
Peter
 
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Here are some photos of the VMR covers. They are perforated metal and slightly rounded in the front. They are just deep and wide enough to fit over the VMR outer plastic ring. They don't fit tightly; it's the magnetism from the driver keeps them held on snuggly.
 

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absolve2525 said:
Here are some photos of the VMR covers. They are perforated metal and slightly rounded in the front. They are just deep and wide enough to fit over the VMR outer plastic ring. They don't fit tightly; it's the magnetism from the driver keeps them held on snuggly.
Click to expand...

Thanks Absolve,
Indeed a great way of protecting the VMR and quite convenient.
I wonder if these are original EV parts or some sort of universal grills.... I will ask around if I can get these.

Anyone on the forum maybe?
 
Guys,

anyone can help me with the schematics of EV Delta Xover? Or at least any suggestion which values schould I use for the VMR and ST350? I want to build a hifi version diy crossover for these drivers which originaly were used in S15-3.
Thanks
 
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