Alpine SBR-S83V single 8” ported enclosure loaded with a Type-R 4 ohm sub / subwoofer micro sub, microsub, micro enclosure tune to 30 Hz peak 1000 watts, RMS 300 watts, 2 ohms final impedance, recommended RMS power 100-300 watts - full description online at sonic electronics and crutchfield - retailed new $249.99 to $299.99 - This for $150.00 available and firm on price if posted and fully functional