I did some Googling re Parmeko and came across these interesting links.
1950's Parmeko Co-axial 15" BBC speakers - diyAudio
Classic hi-fi components - Page 37 - The Art of Sound Forum
Unfortunately, nothing which identifies the CD in question.
I did some Googling re Parmeko and came across these interesting links.
1950's Parmeko Co-axial 15" BBC speakers - diyAudio
Classic hi-fi components - Page 37 - The Art of Sound Forum
Unfortunately, nothing which identifies the CD in question.
Opinion is only as valid as its verifiable supporting evidence.
This is a view of the Parmeko LS1 compression driver without diaphragm. The larger stand alone compression drivers (which are extremely rare) used a similar arrangement
Vintagedriverpic3.jpg
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