nbsp; DS18 SRW 10.4 nbsp; It's easy to get great bass when there's very little room with our new line of slim mount subwoofers. The SRW 10.4D (DVC nbsp; and SRW 10.4 (SVC mounts in little as 3.15 inches mounting depth and can be utilized in both ported and sealed boxes for great bass in a tight area. This sub handles 200 watts RMS and 400 watts peak power with a 90 db sensitivity which is very high for a slim mount sub raising this model high above the bar. This sub comes in both dual voice coil 4 ohm (SRW 10.4D and single voice coil 4 ohm (SRW 10.4 so you can wire appropriately to your amp for maximum power to bring all your music to life! nbsp; Nominal Diameter 10 inchesnbsp; Nominal Impedance 4 nbsp; ohmsnbsp; RMS Power Handling 200 Wattsnbsp; Maximum Power Handling 400 Wattsnbsp; Sensitivity (1w/1m 89dBnbsp; Frequency Response 424.2K hznbsp; Recommended Lo Pass Crossover 80Hznbsp; Voice Coil Diameter 50.8 mm / 2 inchesnbsp; Voice Coil Former Material Aluminum nbsp; Winding Material SVnbsp; Basket Material Steel Basketnbsp; Frame Material Steel Basketnbsp; Magnet Weight Ferrite 45 oz nbsp; nbsp; Measurements nbsp; Overall Diameter 260mm / 8.42 inchesnbsp; Front Mount Baffle Cutout 232mm / 7.12 inchesnbsp; Over Depth 93mm / 3.34 inchesnbsp; Mounting Depth 80mm / 2.83 inches