Behringer EURODESK SX2442FX Manual - Page 6

6 EURODESK SX3242FX/SX2442FX User Manual 2. Control Elements and Connections This chapter describes the various control elements of your mixing console. All controls and connections are explained in full detail. 2.1 Mono input channels 2.1.1 Microphone and line inputs The second scale has a gain from +10 to -40 dBu for the line input. For devices with a nomal line output level of-10 dBV or +4 dBu the setting is as follows: with GAIN fully counter-clockwise connect the external device and adjust the output level recommended by the manufacturer. If available, the output level display of the external device should read 0 dB with signal peaks. For +4 dBu increase GAIN, for -10 dBV increase it further. The finetuning can be done with a music signal and the LEVEL SET LED, which will illuminate when the optimum operating level has been set. (5) Mono channels are equipped with a high-slope LOW CUT filter eliminating unwanted low-frequency signals, such as floor rumble (18 dB/oct., -3 dB at 80 Hz). (1) 2.1.2 Equalizer All mono input channels are equipped with a 3-band equalizer. The maximum boost/cut of the individual bands is 15 dB, in mid position the EQ is set to neutral. (2) (6) (3) (7) (4) (5) Fig. 2.1: Connectors and controls of the mic/line inputs (1) Each mono input channel is equipped with a balanced microphone input on an XLR connector, which provides +48 V phantom power for condenser microphones at the touch of a button (see rear panel). ◊ Be sure to switch off your audio system before you activate the phantom power supply to prevent audible switch-on thumps from reaching your monitor speakers. Please also note the information given in chapter 2.11 "Rear panel". (2) Each mono input also has a balanced line input on ¼" TRS connectors. Of course, these inputs can also be used with unbalanced plugs (¼" TS connector). (3) The INSERT I/O connector is used to process a signal with dynamic processors or equalizers. This insert point isprefader, pre-EQ and pre-aux send. Unlike reverb and other effects, which are usually added to the dry signal, dynamic processors process the entire signal. So, aux send buses are not the best solution here. Instead, dynamic processors and equalizers are inserted into the signal path. Once processed, the signal then re-enters the mixing console at the same point where it left. Signal interruption only occurs if a plug is inserted into the corresponding jack (¼" stereo plug: tip = signal output, ring = input). All mono input channels are equipped with insert points. They can also be used as pre-EQ direct outputs, without signal flow interruption. For this you need a cable with a ¼" TS connector on the recorder/effects processor end, and a bridged stereo ¼" TRS connector on the console end (tip and ring interconnected). (4) The GAIN control adjusts the input gain. Be sure to set this control fully counter-clockwise before you connect or disconnect a signal source to or from one of the inputs. (8) Fig. 2.2: Equalizer section of input channels (6) The HIGH control in the EQ section controls the high frequency range of the respective channel. It is a shelving-type filter which can boost or cut all frequencies above a fixed frequency (12 kHz). (7) The MID control allows you to raise or lower the mid-range level. It is a semiparametric peak filter, which boosts or cuts the frequency range around a variable mid-range frequency. Use the FREQ control to select the mid-range frequency from 100 Hz to 8 kHz. Then use the MID control to boost or cut the selected frequency range. (8) The LOW control boosts or cuts the low-frequency range. Like the HIGH filter it is a shelving-type filter, which raises or lowers the level of all frequencies below a specific frequency (80 Hz). 2.1.3 Aux/FX send buses Aux sends enable you to take the signals from one or multiple channels and collect them on one bus. This signal is then present at one of the aux send jacks, from where it can be routed to an active monitor speaker or external effects device, for example. The FX returns are subsequently used as a return bus for the processed signal. (9) (10) (11)  GAIN has a dual scale: the first scale has a gain from +10 to +60 dB for the MIC input. Fig. 2.3: AUX/FX send controls in the channel strips