Active Subwoofer Cabinet with 1500 Watt Class D Amplifier. Stereo Input. 18mm Birch Plywood. Custom Designed 15" Drivers. Low Pass Filter with Frequency Adjustment. Balanced XLR/Jack Combi Input Connections. XLR Link OutputsPower: 1500W RMS- 2800W Peak Response: 50Hz-120Hz Bass Driver: 15"/4" Voice Coil Amplifier Class: D SPL: 128dB/136dB (Peak) Dimensions: 450 x 520 x 485mm Weight: 28.5Kg. A very powerful active subwoofer- delivering a massive 1500 watts of RMS power. The Kira K15 has a bespoke 15" driver and inbuilt 1500-watt Class D amplifier. The internal electronic crossover and a phase reverse switch- make this a completely self-contained subwoofer cabinet. It is ideally suited to work with the K12 Cabinets- but will be very effective as part of most large PA systems.