There are two different kind of sound enclosures...
I think there may be 3 (or more.)
craigvetter.com said:
Why are there two different radio housings: Cycle Sound and Vetter Sound?
Here is the Cycle Sound story: Fred Hoese, a dear friend, who now makes "LeatherLyke" saddlebags, invented and manufactured the Cycle Sound back in 1975. Vetter Corp. sold his Cycle Sound kit as an accessory. When I sold the company, the new owner simply copied Fred's design and called it Vetter Sound. All very embarrassing to me. Fred's Cycle Sound is the only legit unit as far as I am concerned.
craigvetter.com said:
What happened to the Vetter Fairing Company?
I started my fairing business in 1966. I sold the company to my banker in 1978. He put it into bankruptcy in 1983. Bell (Helmets) acquired the assets. Bell produced fairings thru 1987.
I think it was the copied version that is a single piece.
I wasn't there, and only have 5 enclosures (ONLY?) to compare.
1. 2 piece with cyclesound on the enclosure and cyclesound on the speaker covers.
2. 2 piece with cyclesound coaxial system on the enclosure with no speakers nor cover.
3. 2 piece with vetter on the enclosure and vettersound on the speaker covers.
4. 2 piece with vetter on the enclosure and roadmaster on the speaker covers (otherwise identical to #3)
5. 1 piece with nothing on the enclosure and vetter on the speaker cover.
Pure conjecture but I'm thinking
1. craig sold cyclesound units. (75-78)
2. banker sold vettersound units. (79-83)
3. bell sold one piece vetter units. (84-87) That or another company produced the one piece unit with or without permission to use the vetter name on the speaker covers.
Again not having been there, exactly how things went down I don't know. But there were obviously various versions of multiple brands produced.
I still find it odd that until this thread (and I looked at what I have) I had never heard of nor seen a one piece unit. And at least 4 of us have one!