OK, then there is some disagreement. What I have looks like Heppner but I've been told they are actually Foster made. Came out of a Magnavox console from the 70s.
Whatever they are, they aren't all that great. But they work.

Some Magnavox were Jensen, laters were Heppner,
All US made
The Foster came much later
None of the Magnavox were Foster
Your neighbors called. They like your music.
OK, then there is some disagreement. What I have looks like Heppner but I've been told they are actually Foster made. Came out of a Magnavox console from the 70s.
Whatever they are, they aren't all that great. But they work.

Pano, I'm 100% sure your friend is mistaken. I was a Heppner OEM customer.
I am not sure of the origin of the horn itself, it appeared in the 50's. Jensen and Heppner made them, there was an EV which I think was a Heppner OEM.
Gollehon started building high power versions in the early 70's. Foster started building copies, the later Fosters had a curved front. Most Foster OEM stuff is clearly stamped Foster...
Anyway, by all means post pics of yours I'd love to see the numbers on them.
Your neighbors called. They like your music.
Hard to tell from the picture of it in the baffle, but I suspect I have some version of what is being talked about. Will try to find and then post a pic.
Adding worst pic ever... but perhaps will suffice for now.
These stamped magnavox (see second wost pic ever).
$9.95, at McGee radio, circa 1980.Heppner in Chicago.
Heppner was a very good low end product.
Those will sound great, won't play super loud.
sound much better with tube amps.
my pair, have been blown for near 30 years now.
What about Utah?
Did they make their own, or rebrand something from Heppner, Cleveland, Oxford, etc. etc.?
I recognize some internal parts of Utah branded compression tweeter horns as having been cloned by Foster/Fostex, especially the radio shack iterations. I have a pair of very small conical horns that are identical to the ones used in Utah coaxials, these happen to be early radio shack branded, and even tho they use the same phase plug as the later Foster made RS tweets, these clearly say made in USA on the labels.
Here's a pair of Utah branded 2 x 6's with the styrofoam covers commonly found on the Magnavox/Heppner horns. ONE PAIR UTAH HORN TWEETERS - eBay (item 260683329218 end time Nov-01-10 16:50:51 PDT)
Not all vegetables make good leaders.

Bowtie beat me to the id
I do suspect the Utah were Heppner, but without numbers can't confirm.
Heppner also sold parts, so Utah may have just bought parts.
Radio Shack was a Utah OEM BTW.
Their musical instrument stuff was Utah. At least it was early 70's.
Your neighbors called. They like your music.
OG, these are the tweeters i was referring to. in the Utah coaxial application they had white foam rings surrounding the horn mouth, not unlike the foam rings on JBL LE series tweeters. Radio shack sold these as raw components once upon a time. Internally, these are extremely similar to the made in Japan(foster i think) 2x6 and 4x10 horns that RS sold just a few years later circa mid 70's.
And a "borrowed" pic of a Utah coaxial.
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Not all vegetables make good leaders.
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