HxWxD: 38” [96.5cm] tall, 12-9/64” [30.8cm] square base, 9-31/64” [24.1cm] square top Footprint: 12-9/64”square [30.8cm square] Weight: 53 pounds [24kg] Bandwidth: 30—25kHz Efficiency: 101dB SPL @ 1W, 1m Impedance: 16 ohm Power Amp Range: 2—300 watt