Cadence Acoustics ZRS57 5-Inch x 7-Inch/6-Inch x 8-Inch 200 Watt Peak 2-Way Speaker System Cadence ZRS57 5-inch x 7-inch/6-inch x 8-inch 4 ohm 2-Way Speaker System Power Handling: 70W RMS/200W Peak Frequency Response: 35Hz  22 kHz Sensitivity: 93dB @ 1w/1m Mounting Depth: 2.75-inch