They are 2 12" RE audio SR series 4 ohm Dual voice coil subs. They are rated for 300 watts rms. Here are the specs of the subs: http://www.woofersetc.com/p4907/SR12...-Subwoofer.htm They are about 1 year old, but they still look like brand new, as there are absoultey no marks, dents or scuffs on either of the subs. ***Bought boxes for $150 new built by one of the sub box builders on this forum. They are in custom made boxes specifically for my car, which have .65 cu.ft inside, which are the specs for a sealed enclosure for these subs are between .5-.75 cuft. *****Looking to get $200 plus cost of shipping obo for the subs in the boxes. ***I also have the cadence amp that powered them both for sale in the amp section. Ill sell the subs and amp together if you want them both. Ill throw in all the amp wiring as well if you want that too...