model #ts-w302r 800 peak 150 rms, single voice coil 4ohm, sealed box from min 1 cf rec 1.5cf max 2cf. ported min 1.25cf 3x11 in port, rec 1.65cf 3x9in port, max 2.05cf 3x7in port. 97 db. 20hz to 90 hz displacement 0.060. also have a mtx 600xd mono amp 600 watts 2 ohm ($200obo) pushes the sub great. i have them in a ported mtx thunder box but the son wants to upgrade for 2 xxx 15 like pop. they are only two weeks old still have the boxes they came in.