Active 18-inch PA bassreflex subwoofer with an integrated Class D amplifier rated at 400 W RMS. It features a 40–250 Hz frequency range, adjustable 80–200 Hz crossover, XLR inputs, parallel outputs, high-pass outputs, phase reversal, limiter, and status LEDs. The vented MDF cabinet has a black metal grille with acoustic foam, an M20 pole flange, and a carrying handle. Dimensions are 61.3 × 61.3 × 54 cm and weight is 32.7 kg.