What i have are some rare old school rockford fosgate 18" xlc punches rfp 2818 8ohms. i bought them from a pawnshop not to long ago. If anyone knows anything about them please share. I know their 8ohms dont know how many watts or rms they can handle. Also, looking for the best way to wire them up in my car. It would be nice to know the value of them as well. couldnt find any info even called rockford fosgate their advice was to look online because they dont have any info. They came out in 1999.