I just bought a pair of SDA 1 's on E-bay, Does any one know how the 4 drivers are configured , which are connected to standard input and which are connected to the phase input from the connecting wire. Here is my problem
On one speaker 3 of the 6-1/2" drivers are locked solid in place, the other speaker all four drivers are ok. They were shipped UPS in separate boxes
I am trying to determine if the voice coils are frozen due to an amplifier melt down or from over driving, or did they sustain shipping damage. They were packed pretty well. With no outward signs of shipping damage. But could dropping them in shipping ,cause a G force great enough to lock the voice coils.
They were insured and the owner advertised they were in excellent working
I have tried to contact the seller several times and have not heard back yet. Seller has a high rating
I need some guidance on how to proceed. with this. I am temped to just buy
3 new drivers and move on.