FBT ProMaxx 15a Active Subwoofer - B&C neodymium driver, switched mode amp, 1200W, 38-120Hz, 136 dB SPL max, XLR in/out, volume, HP filter, ground lift switch, DSP with 8 EQ presets, 180° phase reverse, 15mm plywood housing, M20 thread. Dimensions: 507 x 585 x 605mm. Weight: 28.5kg