Behringer 1204USB Manual - Page 5
LOW CUT, COMPRESSOR, Equalizer, Aux sends, AUX 1 MON, AUX 2 FX, Routing switch, solo and channel - manual
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5 XENYX X1204USB/1204USB User Manual LOW CUT The mono channels of the mixing consoles have a high-slope LOW CUT filter for eliminating unwanted low-frequency signal components (75 Hz, 18 dB/octave). GAIN Use the TRIM control to adjust the input gain. This control should always be turned fully counterclockwise whenever you connect or disconnect a signal source to one of the inputs. COMPRESSOR Each mono channel features a built-in compressor which lowers the dynamic range of the signal and increases its perceived loudness. The loud peaks are squashed down and the quiet sections are boosted. Turn the COMP knob clockwise to add more compression effect. The adjacent LED with light when the effect is engaged. 2.1.2 Equalizer All mono input channels include a 3-band equalizer. All bands provide boost or cut of up to 15 dB. In the central position, the equalizer is inactive. The circuitry of the British EQs is based on the technology used in the best-known top-of-the-line consoles and providing a warm sound without any unwanted side effects. The result are extremely musical equalizers which, unlike simple equalizers, cause no side effects such as phase shifting or bandwidth limitation, even with extreme gain settings of ±15 dB. Both aux sends are mono, are sourced after the equalizer and offer up to +15 dB gain. ◊ If you press the MUTE/ALT 3-4 switch, aux send 1 is muted, provided that it is switched post-fader. However, this does not affect the aux send 2 of the X1204USB. AUX 1 (MON) In the X1204USB, aux send 1 can be switched pre-fader and is thus particularly suitable for setting up monitor mixes. In the 1204USB, the first aux send is labeled MON and is permanently switched pre-fader. PRE When the PRE switch is pressed, aux send 1 is sourced pre-fader. AUX 2 (FX) The aux send labeled FX is for sending to effects devices and is thus set up to be post-fader. In the X1204USB, the FX send is routed directly to the built-in effects processor. ◊ If you wish to use the internal effects processor, the STEREO AUX RETURN 2 connectors should not be in use. ◊ X1204USB: you can also connect an external effects processor to aux send 2, however the internal effects module will be muted. 2.1.4 Routing switch, solo and channel fader Fig. 2.2: The equalizer of the input channels The upper (HI) and the lower band (LO) are shelving filters that increase or decrease all frequencies above or below their cut-off frequency. The cut-off frequencies of the upper and lower band are 12 kHz and 80 Hz respectively. The mid band is configured as a peak filter with a center frequency of 2.5 kHz. 2.1.3 Aux sends Fig. 2.4: Panorama and routing controls Fig. 2.3: The AUX SEND controls in the channel strips Aux sends take signals via a control from one or more channels and sum these signals to a so-called bus. This bus signal is sent to an aux send connector and then routed, for example, to an active monitor speaker or an external effects device. The return from an external effect can then be brought back into the console via the aux return connectors. For situations which require effects processing, the aux sends are usually switched post-fader so that the effects volume in a channel corresponds to the position of the channel fader. If this were not the case, the effects signal of the channel would remain audible even when the fader is turned to zero. When setting up a monitor mix, the aux sends are generally switched to pre-fader; i.e. they operate independently of the position of the channel fader. PAN The PAN control determines the position of the channel signal within the stereo image. This control features a constant-power characteristic, which means the signal is always maintained at a constant level, irrespective of position in the stereo panorama. MUTE/ALT 3-4 You can use the MUTE/ALT 3-4 switch to divert the channel from the main mix bus to the Alt 3-4 bus. This mutes the channel from the main mix. MUTE-LED The MUTE LED indicates that the relevant channel is diverted to the submix (Alt 3-4 bus).