Kicker CompRT 43TCWRT84 Sealed truck enclosure 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 Type: thin-profile. No. of Woofers/Size (in, cm): 8, 20. Impedance (Ohms): 4. Power Watts (peak/RMS): 600/300. Sensitivity (dB 1w/1m): 85.5 The CompRT 8" Subwoofer is pre-loaded into a top quality Kicker enclosure with a passive radiator, for bigger and better sound! The CompRT Thin Profile Eight-Inch Subwoofer Enclosure comes loaded with a Reflex Subwoofer and RT Sub, then carpeted and loaded with a single 4 Ohm terminal. Covered in stylish black carpeting and built with thick MDF, these sturdy enclosures take some serious power, yet easily fit under a seat. Match them with KX Amplifier for big power in a small footprint. The CompRT Eight-Inch Enclosure works best with 300 watts of recommended power. Kicker 43TCWRT84 8" 600W Shallow Car Subwoofer+Slim Box Enclosure. Subwoofer Size: 8". Mounting Depth: 2-11/16". Mounting Diameter: 7"