I have an extra spare pair of 1970 Sansui SP-2000 in the closet. I don't believe that they have ever been used or even taken out of the box, until I took them out and tried them last year. The cabinets are factory fresh in the original wrappings with all associated paperwork. 1970 Sansui SP-2000. 1 super tweet 2 tweets 2 mids (AlNiCo magnets) 1- 12 inch woofer(AlNiCo magnet) The problem is that the speakers sound really boomy, undefined dull base response, not clear, or maybe the term is very muddy. To put it bluntly, they sound really bad. Like, there is something wrong! Big time. With that said would the problems be deteoriated caps (maybe from not ever being used), woofer problems (like voice coils), or something else like a corroded L-pad type dial pots? I do want to restore the speakers to spec, for fun and the basic education on speaker restoration, because the cabs are Mint, not even a fingerprint on em. And I like the sound of SP-2000s. I know there is better speakers out there but the SP-2000s are fine for me. Any information or advice, no matter how small, would be most welcolme. Thanks guys! :yes: The SP-2000s below are just a generic photo off of Yahoo Image.