I was checking the polarity of some speakers. A 2105H and one 2204, all my Peerless, Audax, Adire and Focal cones moved outward when placing red to positive.
Two 2105s and one 2204 moved inward after placing positive to red! I checked the 2204s at least 4 times each.
Is this common with JBL's?
Mitch