I have noticed in the JBL brochures that I have seen (55-64) that the D123 is rated at 20 watts and that by 73 or so they are saying 50.
Does anyone know if there is wider gap on the later ones ? or is the difference achieved with better materials?.
I have noticed that the only physical difference is that early 70's one's are mostly black crinkle and have white plastic piping around the frame.
Also does anyone have experience with the aftermarket kits for these ?
Cheers
Lee