12" Duplex "The Engine" possible project

He could use MRII 5124 and "machine the end to fit the engine. plug the end with a wood plug then find the center. then using the inner size of a holesaw to match the inside of the engine. cutting the flange off the leaving end to mate the horn to the engine.
I hope this makes sense.

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Originally Posted by Old Guy

I doubt if the small Mantaray or the 604 horn will fit. The Engine uses a large format driver.

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Yes, But what I was suggesting is that I think he makes them from scratch maybe 3D printer. And maybe he would be able to make something for him. I figured you won't know until you ask. His store is Stein Horns.. I thought maybe worth an email.. Dunno.

Yeah, folks nowadays are 3D printing all kinds of custom horns, adapters, face-plates, even whole Danley Synergy Concept horns on DIYA.