Behringer UB1622FX-PRO, UB2442FX-PRO manual Lo Cut, Pre, Aux Fx, Pan, Mute LED, Peak LED

EURORACK UB1622FX-PRO/UB1832FX-PRO/UB2222FX-PRO/UB2442FX-PRO

The two most common operating levels (+4 dBu and -10 dBV) are highlighted for quick and accurate level setting.

LO CUT

Additionally, the mono channels of the mixing consoles have a high-slope LO CUT filter for eliminating unwanted, low-frequency signal components (75 Hz, 18 dB/octave).

2.1.2 Equalizer

All mono input channels have a 3-band equalizer with semi- parametric mid bands. All bands provide boost or cut of up to 15 dB. In the central position, the equalizer is off (flat).

Fig. 2.2: Equalizer of the input channels

The upper (HI) and the lower (LO) bands 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 bands are 12 kHz and 80 Hz respectively. For the mid range, the console features a semi-parametric equalizer with a filter quality (Q) of 1 octave, tunable from 100 Hz to 8 kHz. Use the MID control to set the amount of boost or cut, and the FREQ control to determine the central frequency.

2.1.3 Aux sends

Fig. 2.3: The AUX SEND controls in the channel strips

AUX sends source their 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 external effects device. In the latter case, the effects return can then be brought back into the console via the aux return connectors.

All aux sends are mono, post-EQ and offer up to +15 dB gain.

Pre-fader/post-fader

When using effects on a channel signal, it is usual to have the aux send post fader so that the balance between effect and dry signal stays constant even when the channel fader is altered. If this were not the case, the effects signal of the channel would remain audible even when the channel fader is turned to zero. For monitoring, the aux sends are generally pre-fader, i.e. they operate independently of the position of the channel fader.

PRE

When the PRE switch is pressed down, the associated aux send is taken pre-fader.

AUX (FX)

The aux send marked FX offers a direct route to the built-in effects processor and is therefore post-fader and post-mute. Please refer to chapter 4 “DIGITAL EFFECTS PROCESSOR” for detailed information.

+If you are using the built-in effects processor, make sure that STEREO AUX RETURN 3 has nothing plugged into it (UB2442FX-PRO and UB2222FX-PRO), otherwise the internal effects return will be muted. This is not relevant if you use the FX OUT jack to drive an external effects device.

+UB1622FX-PRO and UB1832FX-PRO: On these consoles, the above note refers to the STEREO AUX RETURN 2 jacks as these models do not have a dedicated effect output.

2.1.4Routing switch, PAN, SOLO and channel fader

Fig. 2.4: The panorama and routing controls

and the channel fader

PAN

The PAN control determines the position of the channel signal within the stereo image. When working with subgroups, you can use the PAN control to assign the signal to just one output, which gives you additional flexibility in recording situations. For example, when routing to subgroups 3 and 4, panning hard left will route the signal to group output 3 only, and panning hard right will route to group output 4 only.

MUTE

The MUTE switch breaks the signal path pre-channel fader, hence muting that channel in the main mix. The aux sends which are set to post-fader are likewise muted for that channel, while the pre-fader monitor paths remain active irrespective of whether the channel is muted or not.

MUTE LED

The MUTE LED indicates a muted channel.

PEAK LED

The PEAK LED lights up when the input signal is driven too high. If this happens, back off the GAIN control and, if necessary, check the setting of the channel EQ.

6 2. CONTROL ELEMENTS AND CONNECTORS