Originally Posted by
j20056
I'm finally changing the original 3107 from my 4350A's with crossovers I bought from Rick Riessen about a year ago. Upon inspecting the units, I observed that there seems to be a polarity inversion on the Medium Frequency driver. If you look at the attached photo, the labels corresponding to all RED wires are +, except for the medium frequency driver, labeled respectively +MF and -MF, but with wires respectively colored black and red, which seems to be an inversion.
I tried contacting Rick Riessen, but I also noticed that he hasn't posed here in a while. Has anyone purchased similar units from him and observed the same problem, or is it indeed correct as labeled?
Thanks (I'm impatient to listen to these now)