This premium passive enclosure with a single subwoofer is constructed from robust birch ply with a durable hard-wearing finish and features CNC machined pocket handles and a 35mm top hat for satellite mounting. This Zenith series cabinet features a die-cast aluminium chassis for increased rigidity helping deliver greater sonic accuracy. Please note: Shipping charges may apply Continuous power (RMS): 650W Peak power: 2600W Maximum calculated SPL: 133dB Sensitivity (1W/1m): 99dB Frequency range (-10dB): 40Hz - 220Hz Frequency range (-3dB): 48Hz - 200Hz LF transducer: 18" Nominal impedance: 8Ω Connections: 2 x speakON connectors Mounting options: 35mm top hat for satellite mounting and multiple 10mm rigging points Other features: Rear mounted castor fixing points