Wet Sounds Refurbished Stealth 6 Surge - Amplified Powersport Soundbar This refurbished item carries a 90-day warranty. Non-Bluetooth Controller Version of the ULTRA HD Built-In High Output Advanced DSP Amplifier with D-Bass Tech Same Great Speakers and Amplifier as the ULTRA HD Ready to connect to an External Bluetooth Controller, Head Unit, or Additional ULTRA Sound Bar IP67 Rated - Aluminum Chassis & Grille with Powder Coated Finish Complete Wiring Harness with L & Top Mount Brackets Included Ready to Connect to an External Controller, Head Unit, or Additional ULTRA Soundbar L Brackets & Top Mount Brackets Included (other mounting style options available) Impedance: 4 Ohm RMS Watts: 300 watts RMS x 2 Sensitivity: 90 dB at 1W/Meter Frequency Response: 40 hZ - 20 Khz Length: 20.70 inches Depth: 3.92 inches Height: 3.70 inches Operating Voltage: 12V RMS Watts -200 watts RMS x 2 Minimum PEAK Watts - 400 watts RMS x 2 Suggested Sensitivity -90 dB at 1W, Meter Frequency Response -40 hZ - 20 Khz