[. . . ] Speakers require a reinforcement system that allows them to unfold their vocal skills. BELL offers a wide range of loudspeaker systems and power amplifiers which have been specifically designed for use in high quality sound reinforcement systems. XRL (female) MIC INPUT Use this input for low impedance balanced microphone connection. [. . . ] When using unbalanced signals, a wire bridge must be inserted into the incoming XLR/m connector from pin 1 to 3. Phantom Power (+48V) (switch with LED indicator ) When using phantom powered condenser microphones, switch , Phantom Power` ON. When using only dynamic microphones, phantom power should be in 'OFF' position. Line Input Jack Sockets (mono channels 1-6) These channels are for use with monaural line signals such as musical instruments. Stereo Input channels 7/8 and 9/10 Via Jack Sockets L/R, these channels may be used either as mono- or stereo channels. (Selector switch in position A) The RCA inputs L/R are for use with stereo line signals only and will be activated by setting the selector switch to position B) HPF (High Pass Filter) Channels 1-6 feature a High Pass Filter which will help to dampen resonances below 100Hz (-12dB/oct. Turn TRIM control slowly clockwise and use microphone / Instrument at normal singing / playing volume. AUX1/MON works 'pre fader' (independent from the Channel faders) AUX2/EFF (post fader) Combined AUX/EFF Control. sends the channel signal to the built-in multieffect unit and to the AUX2 Send socket. When only one of the L/R jacks sockets is in use, both inputs will have the same signal. (Signal distribution to L/R via BAL1 control) Stereo Return 2 Adds Signals from external effect units via the RET2 L/R sockets to the Master L/R mix. When only one of the L/R jacks sockets is used, both inputs will have the same signal. The POWER ROUTING switches enable the use of the two internal power amplifiers via the L&R MASTER Faders (NORMAL SETTING) or the MONITOR Fader. Master Mode Connect the main loudspeakers for L&R (front/foh) with speakon type connectors to the speaker out sockets L&R at the rear panel. Monitor Mode Enables the use of the internal power amplifiers to drive your stage monitor loudspeakers. In this mode, the selector switches will be set to , MON` position and the internal power amplifiers will receive signals from the MONITOR bus via the MONITOR Fader. Your main loudspeakers (L&R) can now be powered by a separate power amplifier (for example BELL PSX or CS series) which will be connected to the L-OUT and R-OUT sockets. Use to connect external power amplifiers (BELL PSX or CS), when the internal power amplifiers are driven in Monitor mode. [. . . ] Use to connect external power amplifiers (BELL PSX or CS), when the internal power amplifiers are driven in Monitor mode. Use to connect external monitor power amplifiers or active monitor loudspeakers. Use to connect external effect units (Send) via the AUX1 / AUX2 master controls. [. . . ]