Zapco ASP-L2 BT 2 Channel 9.5V Line Driver, Bluetooth Streaming w/ Dash Remote 2-Channel in/4-Chanel out line driver at 9.5Volts RMS, 14Volts peak | Bluetooth Music Streaming Balanced/unbalanced inputs | Selectable ground reference | Remote level control for system volume THD: .01% | S/N: 110dB | Stereo Separation: 90dB Preamp output: 9.5V RMS / 14V Peak | Dimensions (mm) L/W/H: 102 x 119x x39 Mounting Dim. With Feet/Term.: 127 x 119 x 39