Kicker 43TCWRT82 CompRT 8" 2-Ohm Subwoofer in Thin Profile Enclosure Kicker 43TCWRT82 8" 600W Shallow Car Subwoofer+Slim Box Enclosure Subwoofer Size: 8". Mounting Depth: 2-11/16". Mounting Diameter: 7". Type: thin-profile. No. of Woofers/Size (in, cm): 8, 20. Impedance (Ohms): 2 Power Watts (peak/RMS): 600/300. Sensitivity (dB 1w/1m): 85.5 Box Top Depth (in, cm): 3-9/16, 9. Box Bottom Depth (in, cm): 6-7/16, 16.4. Box Height (in, cm): 11-13/16, 39. Box Width (in, cm): 19-5/16, 49