how to spot a dvc versus an svc sub

DVC looks like this       + - SUB + -                 And SVC is        - SUB + Easy.     "dont ground out!"

dswift wrote: DVC looks like this       + - SUB + -                 And SVC is        - SUB +  Easy.

Wrong. I have an Aurasound 10 with two terminals per side, and it is a single voice coil woofer. Also, the OP has already been told that his woofer is a SVC driver, as well, and it, too, has 4 terminals. Blanket statements like that can get you in trouble, as they are not always correct assessments of the situation. The way you jumped in and answered so quickly, leads me to believe you didn't even read any of the previous posts... I think you just read the thread name, and decided you knew what was best. How close am I?It all reminds me of something that Molière once said to Guy de Maupassant at a café in Vienna: "That's nice. You should write it down."