Alpine RS-SB12 12″ Halo R-Series R2 Preloaded Subwoofer Enclosure

12-inch Halo R-Series R2 subwoofer preloaded in a factory-tuned enclosure Passive subwoofer design (external amplifier required) Precision-tuned sealed enclosure optimized for sound quality and transient accuracy Vehicle-friendly footprint designed for trunks, SUVs, and hatchbacks High power handling suitable for modern Class D mono amplifiers Optimized impedance configuration for flexible amp pairing Rigid MDF enclosure construction to minimize resonance and distortion Prewired internal terminals for simplified installation Ideal for SQ-focused builds that prioritize control and musical detail