Subscribe to the Audiogon Bluebook. At the prices that they are going for you might try them I ran a pair that were given to me for some years until I embraced this hobby. While I was still using them my first tweak was to upgrade interconnects and speaker cables. By the standards I then had, they did improve quite a bit.
They could even be a deal at $500.00, equalizer included.
They could even be a deal at $500.00, equalizer included.