INPUTSignal input from the head unit. A minimum levelinput of 0.2V is essential for correct operation.POWER & PROTECTION INDICATORPower LED, Blue-lit shows correct operation.Protect LED, Red-lit shows general malfunction,faulty connection or thermal protection.GAIN (6V ~ 0.2V)Matching of the output voltage from the head unit’sRCA line-outs to the input section.SUBSONIC FILTER (10Hz ~ 50Hz @ 24dB/Oct)Adjusts the subsonic cut off point to eliminatefrequencies within the filter’s range.REMOTE LEVEL CONTROL PORTConnection of external level control.(The Better Bass Remote can be connected for additional features).OUTPUT MASTER / INPUT SLAVEFor daisy chain connection of 2 M1u amplifiers.Minimum impedance is 2 .LOW PASS FILTER (35Hz ~ 250Hz @ 24dB/Oct)Adjusts the cut off point for the low pass filterwithin the filter’s range.PHASE CONTROLVariable phase adjustment from 0-180 degrees.42. Panel layoutM1uBASS BOOSTVariable bass boost with 0-9dB @ 45Hz.SPEAKER OUTPUTSAmplifier connection to the loudspeakers.Minimum speaker cable is 12 gauge.Minimum impedance for the M1u is 1 if .used as a single unit.In a daisy chain configuration the minimumimpedance is 2 .SWEET LIKE DANISH