I recently purchased 2 JBL GTO1004D subs, each rated at 250 watts rms, 1000 watts max. I put these in a sealed prefab Probox that matches the .75 cubic feet recommended for these subs. The box is solid black and coated with a material similar to that of truck bed liners. I have had these for about 2 weeks and ran them off of a RF 360 watt amp. The 2 10's was just to much bass for me, so I am stepping down to a single 10. I have all original parts and papers for these. I will let these go for $200 shipped. Here are some pics:
