SW-112B Passive subwoofer speakers lowest frequency of 28Hz-300HZ extension can reach 129dB maximum SPL use Finnish birch imported sheet, effectively preventing interference with triple resonance aluminum short ring in order to reduce intermodulation distortion, reduce heat coil low port compression and optimized cabinet design brings close and accurate bass response Description Specification Product Advisory Technical parameters Type: passive subwoofer applications: touring and fixed installation rated power: 500W (AES) Peak power: 10000W Frequency range: 28Hz-300Hz Sensitivity: (1w @ 1m): 98db Maximum SPL: 129dB (peak) angle of coverage: 360 ° crossover system: passive subwoofer Nominal Impedance: 8 Ohm Input Interface: 2 * NL4 (NEUTIK ), 1 + / 1 product unit Bass: 1 * 12 units (water, 3.5 "90mm voice coil) Treble: - Case exterior casing color: water-based paint points, black Optional materials: Finnish birch imported Box Size: 570mm * 350mm * 378mm (H * W * D) Weight: 23.2kg