7Sub8 Manual / english3.1 ConnectionsOn the rear side of the speaker you can find balanced (XLR) and unbalanced (RCA)connectors. For professional use the XLR connectors will be the first choice.3.2 InputConnect the left and right line-level signalfrom your signal source (audio interface, mixer,etc.) to the LEFT and RIGHT INPUT jacks. Useeither XLR (balanced) or RCA (unbalanced) cables.3.3 Satellite OutConnect the LEFT and RIGHT SATELLITE OUTjacks to the inputs of the left and right mainpowered speakers or the inputs of the ampspowering the main speakers.3.4 LEDsThere are two LEDs on the front, one on each potentiometer.The left one will blink a few times red when the subwoofer is being switchedon. This does not indicate an overload but the control function of the protectivecircuit. Only if the diode flashes red during operation this indicates an overload.Afterwards, the diode glows green.The right diode will glow green during operation and yellow during stand-by (SignalOn mode, see 5.2).3. Connecting the Subwoofer