SpecificationsPeak power (Watts) 600 WRMS power (Watts) 120 WEfficiency (1 W/1 m) 87 dBFrequency response From 30 Hz to 2000 HzNominal impedance 4 ohmRecommended amplifier power (RMS) 40 to 300 W per channelMin. mounting depth (clearance) 113 mm (4 7/16 in.)Mounting diameter (clearance) 223 mm (8 3/4 in.)Optimum enclosure volume recommendation* 40 LLED color options (sports model only) RGBLED supply voltage (Sports model only) From 10.8 to 16 VdcLED load current at 14.4 Vdc (Sports model only) 150 mAOperating temperature range From 0 to 50°C (from 32 to 122°F)Storage temperature range From -20 to 70°C (from -4 to 158°F)Cone/surround material Polypropylene cone, rubber surroundWater and dust rating IEC 60529 IP65 (Protected against dust and water ingress)*Sealed enclosure, fully filled with absorption material.NOTE: This speaker is not intended to be installed in a vented or ported enclosure when exposed to the outsideenvironment.8 XS Series Subwoofer Installation Instructions