February 26, 2019
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Make Heppner
Up for your consideration is one vintage 1966 Heppner 8" ribbed cone speaker.
https://youtu.be/usUgM46zU1Y?si=5uXDWQK8uszBpI-O to hear one play
On back of speaker written: 575 617. The speakers is 8 ohm Tested 7.7 Ohms.