I had some Air Force friends years ago who sold my two Polk Audio SDA2 speakers (for $50). I used them but had to store them (carefully) in the garage when I got married and combinded homes. My 17 year old nephew wants them for graduation. I dedided to look them up and was floored when I discovered what this site says I have. I do not have a crossover wire and manual. Are these truly the quality and value noted here? If so, I am thinking of selling them and giving him the money for a car (which is what he REALLY wanted for HS graduation.) I would appreciate any info and thoughts on my discovery and feedback on where such items might be apprecitated. I understand collecting and using vintage audio as I still use my old Pioneer PL-400 turntable. My record collection even has 2 copies of Jefferson Airplane's Long John Silver that never had the covers made into stash boxes. If there speakers are treasures I want them to go to someone who will treasure them.