I doubt that. The cone drivers both got pressed steel baskets and the piezo a plastic one.
Alnico with foam didn't happen often. I have a pair of Heathkit version AR4 woofers that are foam/alnico.
yeah, they'd be alnico. Looks like Cleaveland Spkrs made the woofer like 24th week of 1980
There are also ferrite magnets that look that way but it may indded be an alnico. If the surround was changed several times, it probably wasn't initially a foam surround.
Forget selling them unless pawnshop counts as such.
If you have an use for them (say, garage or kids room speakers) and you know how to refoam them, go for it.
Just as a personal thought, I find Piezos became popular *after* the "Alnico era" ended, to boot way back then everybody and his brother used a cone tweeter (even JBL and tons others, remember the ubiquitous "phenolic ring tweeter") so this pair speakers *might* have burnt originals and repaired cabinet by using cheap Piezos.
Which in this simpler direct radiator configuration are more bearable than the spikey horn loaded ones. And definitely do not burn.
If you have an use for them (say, garage or kids room speakers) and you know how to refoam them, go for it.
Just as a personal thought, I find Piezos became popular *after* the "Alnico era" ended, to boot way back then everybody and his brother used a cone tweeter (even JBL and tons others, remember the ubiquitous "phenolic ring tweeter") so this pair speakers *might* have burnt originals and repaired cabinet by using cheap Piezos.
Which in this simpler direct radiator configuration are more bearable than the spikey horn loaded ones. And definitely do not burn.
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