The Avante Achromic Series 15-inch A15S subwoofer features a 1600W Class D power amp. Each cabinet was carefully designed with components specifically chosen to provide high SPL levels. The cardioid output option allows you to better focus your low end in a ground stack configuration for tight clean bass. Every model in the Achromic Series features an advanced easy to use Digital Signal Processor accessible via an LCD screen on the rear panel of the speaker. The built-in DSP allows you custom optimization to configure the speaker specifically for your needs: Music Type /Room/ mounting option/EQ/ and System configurations. A15S Specifications: 15-inch active subwoofer Frequency Range (-10db): 35Hz-160Hz Nominal Coverage: Omni-direction, cardioid Output (Peak SPL @1M): 126dB Amplifier Power 1600 W Dynamic, 500W RMS Power Consumption: 600W DSP Features: LCD screen with EQ and multiple presets Driver: 15" Woofer w/3" Voice Coil Input / Output Connectors: 2x Balanced female XLR + 1/4" combo jacks, 2 x Balanced Male XLR Outputs Enclosure: 15mm Plywood Grill: 1.5mm steel Handles: 2 Side Fly Points: None Power Input: 115V/230V, 50/60Hz, Multi-voltage Dimensions (HxWxD): 24.1" x 16.9" x 23.9" (612mm x 430mm x 607mm) Weight: 57 lbs (25.9 kg)