older speaker connectors

YES A GOOD QUALITY CARDAS OR WBT WOULD MAKE A DIFFERENCE
THIS WOULD ALOW YOU TO USE A BETTER QUALITY CABLE AND SPADES OR BANANA CONNECTIONS
ITS A TWEEK THATS NOT GOING TO COST A FORTUNE

Cardas copper/unplated.Cheapest was found at The Cable Company,for the price they covered shipment from Cardas Audio.

i'll break rank here and tell you pins are fine

What model speakers are we talking about? The cost of the upgrade with Cardas connectors may cost more than your speakers are worth. There are a lot of connectors available at reasonable prices.
Check this site out for some reasonable terminals. I've used them a couple of times, good service. Changing the posts is really not a diffivult little project.