Macrom M2A User Manual (English) - Page 6

10. 2CH/4CH Switch(M2A.4000MK2) This button switch 2ch/4ch input mode. When press in, amplifier works at 2ch input mode,CH3/CH4 input will be paralleled to CH1/CH2, CH3/CH4 input jack will be dummy. When pressed knob out, amplifier will work at 4ch mode. 11. Output Mode Switch M2A.2000MK2: When press the button out, the L/R audio sources will be set on stereo, the L/R audio sources are Separate entity. the MONO(L) function is working When press the button in, the R audio source is copy from the L audio source. M2A.4000MK2: When press the button out, the CH1/2 and CH3/4 audio sources will be set on stereo, the CH1/CH2 audio sources are separate entity, and the CH3/CH4 audio sources are also separate. the MOMO(1/3CH) function is working when press the button in, the CH2/CH4 audio sources are copy from the CH1/CH3 audio sources. 12. Power Indicator This green LED will light up when amplifier works properly. 13.Protection Indicator The red LED will light up if there is a fault presented to the ampliffier . Please disconnect the amplifier and resolve the fault before reconnecting the amplifier. 14.Fuse To protect amplifier when current is more than rated. Never replace a fuse with a higher amp fuse. Never replace a burnt fuse before checking the system when there is a malfunction. PRE INSTALLATION Please prepare sufficiently to layout your car space before installation.We recommend to have the installation done by an Autho rized MACROM Dealer. Use good insulated power cable to endure longterm use with high electric current. The +12 Volt power cable must be connected with a fuse in line near 20cm of battery+ terminal. Required current, power cable and proper external fuse listed as following. Model Table 1 Fuse Cable M2A.2000MK2 M2A.4000MK2 30 AMP 40 AMP AWG 8# AWG 4-8# Please use car audio RCA cables, otherwise it may be disturbed. Keep these cables as short as possible. To avoid disturbances from your car electronics, please don't close to the existing car cables when you install the RCA cables. Don't expose any cables out of car.Please take care insulated cables to avoid being damaged when cables pass through metal, rubber and plastic etc. Don't innstall cables too tight.