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Here is a nice vintage design if you want to start with something simple:

superheavydeathmetal wrote:Here is a nice vintage design if you want to start with something simple:

Isn't that more of a transmission line than a folded horn?

Looks simple enough for the first time DIY cabinet builder, for sure!

Looks like there would be way too much wave dispersion out of the huge vent in the side...

superheavydeathmetal wrote:Here is a nice vintage design if you want to start with something simple:

Amazing! Or rather, a-maze-ing. But I'm lost. I think I turned left when I should've turned right...! When you've stuck a speaker in that thing can you hit a nice big low 'E' and I'll be ejected and free at last!

Bought new in '71, played out many times, retired in '85.
What has kept it home, other than the size, is that it is lacking in highs, and hard to predict how loud to set it.Have to stand 8 or more feet in front th hear it's true sound, and not many of my hangouts have that much room.Often I was too loud,and didn't know it.
I've read of similar effects of the Acoustic 360s.


Overkill

fatcat wrote:Often I was too loud,and didn't know it.

You say that like it's a bad thing.

Copying the 400 ps enclosure wouldn't be a first, PeeVey cloned it at about the same time frame.
Copied it closeley enough that theirs had the same weak baffle that was prone to cracking,in the earlier ones.Including mine.
Baffle was reolaced free even after warranty expired.


I had a way out idea occurr to me, of suggesting that a scaled-up version be made, to house one of the 30" woofers that EV made.

I had a way out idea occurr to me, of suggesting that a scaled-up version be made, to house one of the 30" woofers that EV made.

That's fine....until you get to that gig where the guy says "Sorry fellows, but the freight elevator is broken and you'll have to carry that stuff up the stairs to the third floor".

That's when you'd need one shrunk down with an Ampeg 10" driver.
Reminiscent of Stonehenge

My friend picked up a pair of badly beaten up 360 cabinets. We've fitted new 18" speakers and added two bass ports to each and using them for PA subs. They work really well. If they weren't beyond restorable, we wouldn't have repurposed.

I would like to build a folded horn enclosure to sit beside my Henry 8x8, same size and all. The logic against that is that I have no reason for such stage volume... anywhere!