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Old 05-21-2016, 11:30 PM
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d-ray657 d-ray657 is offline
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Location: Johnson County, Kansas
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Quote:
Originally Posted by donquixote99 View Post
The '328' at the beginning of the second number on the woofer is what's called an EIA code. Referring to a list of such, I find the woofer was made by Utah, generally considered barely a mid-fi brand, though your speakers may vary. The rest of the number might be a mfg date, but it looks to be partially missing.

Those are alnico-magnet drivers, and as such are considered wonderful rare vintage technology of the past by some, for no good reason that I know of.

The sealed-backs on the mid and tweeter are to isolate their cones from back-pressure from the woofer. It's a necessary thing, though on mids a can or box enclosure is often used.

I suspect bass will be their Achilles heel. But they should be fairly high-efficiency, giving big sound with a 15 or 20 watt vintage receiver. Might actually be a good match with a low-power tube amp.
Thanks for the information. From the first listen, I think that they should be worthy of a little elbow grease and a new set of caps. Howard's Feed & Wax has done wonders for a few old cabinets around here. It appears that they have the old accordion surrounds, so no need for replacing those. Maybe I'll have some time for that around November.
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