This sounds so stupid that it just might work

[whopintp]

I've no idea Is that crazy vertical horn original? What's that all about?

Yes. It's the EV HT-350D

 

[whopintp]

These Cabinets are shot, yes but I sealed them up W/Leak Sealant, Undercoat rubber & some heat. After I sealed them up I drug them out of the garage & into the living room.
This is where I heard the EV-high(HT-350) & mid horns (HD350d come to life. These are the horns it has crossed over @ 700HZ
I have 1 missing 10" speaker. I have the original woofers 1-10" & 2-12". These are
original. Yes I do want them done with 1.5" MDF. Then I want to brace them. I have all new crossover parts & I am going to replace the crossover board. Does the Front Baffle come off hard.?? I wanted to mirror the boxes????

 

[Zarathu]

I remember those from the 70's. Remember that the design existed before the Thiele/Small parameters revolutionized speaker design. So you really would need to run Bass Box or WinISD .7 to determine to cabinet size for such woofer a combination. Of course, you won't have the T/S parameters for those old woofers. I think you would do better with a more modern woofer, in a modeled T/S design, and like it a lot more.

 

[Badge]

I would fill in the damaged areas with bondo. It works very well and is easy to sand. You could also build another layer of good wood over the existing enclosure.

 

[bwaslo]

I've never heard that metal midrange horn, but it was succeeded by a fiberglass version the same size which I used to have..... one of he honkiest sounding speaker drivers I've run into.

 

[Zarathu]

I've never heard that metal midrange horn, but it was succeeded by a fiberglass version the same size which I used to have..... one of he honkiest sounding speaker drivers I've run into.

It was the 70's. No computers; no computer designs. No Thiele Small.

 

[phivates]

We did have ears, and that horn was nasty

 

[Zarathu]

We did have ears, and that horn was nasty

I salivated over them for awhile. About 8 years later I built a Goldsound Kit.

 

[planet10]

...done with 1.5” MDF...

You’d be better off with well-braced 18mm quality plywood. MidHorn would likely work better if horizontal (and lots of ductseal on the back, those could be nasty)

dave

 

[whopintp]

Thank You
TheOnlyZarathu

Your words interest me partner. Those are the original woofers. 2-12" and 1-10". I was using a Zenith 49-1240 26332 2857425. Just hoping I could get by with that. It sounded about or close to the original as I could get (I just went by looks,weight & hole
fit).
Right now the price for those 10" woofers are now 90+> on ebay or any other place. I'm going to keep them. Right now, I have 2-HT-350's & 2-HD-350d's. 4-woofers are in question.
They crossover at 700hz. Thats a big load for the horns but I don't know ANYTHING about horns. My first pair & I'm
going to finish them up. I think MDF but I hear a grumble from other members. I always thought with that sealant they put on they looked WAY to close together.
A peace of paper is all you could get between HD-350d & 10" woofer. I would really love to stain the front but......I will try to put in pics of the 10" woofer I substituted

 

[whopintp]

I have the Horns to complete the job. These were free.
Now I have the new parts for the crossover. All Film for
the Caps. I'm talking to a carpenter discussing prices.
Now for the woofers. There hooked up in parallel
& what I've read it works the 12" to resonate the 10".
Since I'm keeping the speakers, I'm asking if the newer woofers may
be better??.

 

[whopintp]

I finally got my S7's back. Done with 3/4" Birchwood MDF
The only thing is when they put one of the EV-HD350's, The
Negative & Positive posts fell off. I know they have gaskets
in them. I sent pics so if anybody has experience with EV
Drivers like these, I would love to know. Thanks in advance.

 

[whopintp]

These are the HD350D Drivers where the posts were knocked
off on one.