These are obscure infinity speakers. I replaced the front Peerless tweeters, did a cosmetic do over, and added spikes (made of plum bobs). Three tweeters per speaker.
They sound good.
"When the demon is at your door, in the mornin' it won't be there no more"
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Topic - Old speaker project with spikes - sanman 21:52:49 04/04/17 (4)