My original Snell B's also have the plastic binding posts. About 2 years ago I had the woofers die in one of my speakers. I couldn't afford to fork over the $300 or so per weighted woofer that Snell charged so went with the equivalent Vifa woofer that had the same mounting pattern. I moved the front woofer from the good speaker to the back of the bad one and then used both new drivers in the front.
While I was at it, I noticed that the caps used were pretty low-end. I tested them and found there was about a 12% difference in value between the left and right speakers. I ended up replacing them with slightly better caps (can't remember which but they were a few dollars each) that were matched to within 1%.
Long story short, the speakers sounded just fine after my "experiment" (bass was about the same but the mids were slightly clearer) Better caps will definitely help you get another few % of performance out of the speaker.
Best of luck.
Julian
While I was at it, I noticed that the caps used were pretty low-end. I tested them and found there was about a 12% difference in value between the left and right speakers. I ended up replacing them with slightly better caps (can't remember which but they were a few dollars each) that were matched to within 1%.
Long story short, the speakers sounded just fine after my "experiment" (bass was about the same but the mids were slightly clearer) Better caps will definitely help you get another few % of performance out of the speaker.
Best of luck.
Julian