I'm trying to figure out a value to sell my Yamaha ns-1000s. I am leavin for the army and ha these passed down to me from an ex girlfriends dad. A friend of mine has shown interest in them. They are not in mint condition. They have some wear to the exterior and the adjuster knob on one of the speakers has fell off inside. With that said these speakers still sound amazing and no defects to the quality of sound coming out. If anyone could give me just a rough estimate that would be great. Thanks

Chad