Behringer MX1604A User Manual download pdf (Page 13)

EURORACK MX1604A

Remember that when Alt 3-4 is in use, you do not have a channel mute facility on your desk: you will have to

pull down the fader to silence any channel.

5. SETTING UP

5.1 Desk normalization

All board settings should be set to the normal default condition before or after every session. Usually faders are

set to zero (minus infinity) EQs set flat and switched out, trimpots and channel Aux Sends turned fully

counter-clockwise etc. Many controls have a natural initial setting. For EQ cut and boost this is centre

position. However, some settings, such as selecting pre or post for channel Aux Sends, will depend on the

operating environment (e.g. studio or live), or on a particular engineers preferred way of working.

5.2 Selecting inputs

1) Mono channels accept Mic or line inputs. If you are using the Mic input, make sure nothing is connected

to the Line input (and vice-versa).

+ The Mic inputs are more sensitive than the Line inputs. Do not connect mics with Phantom

Power switched on. Never use unbalanced mic cables with the Phantom Power switched on

ever!!! Shorting 48 V to earth can cause serious damage.

2) Stereo channels accept -10 dBV or +4 dBu Line level signals. Any stereo channel can be run in mono

simply by connecting into the left jack socket only. These channels are suitable for a variety of line-level

sources including MIDI instruments and Tape Returns from multitrack.

3) Stereo Line inputs are primarily designed for returning effects units, though these too may be given over

to multitrack returns or MIDI instrument outputs.

5.3 Initializing channels for gain setting

1) Set Gain to minimum and all Aux Sends to off (fully counter-clockwise).

2) Set EQ to flat (all knobs at 12 oclock).

3) Where applicable, set Lo Cut switch ON for most mics, OFF for signals with desired very low

frequency content.

4) Set channel mode to PFL .

5) Depress Solo/PFL switch.

5.4 Auditioning a signal and setting up a channel

1) Provide an input signal i.e. roll the tape. There should also be some activity at the main L/R bargraph meters

, indicating the PFL level.

2) For Mic/Line inputs: Adjust the Gain control until transient peaks are regularly hitting +6 dB.

Continuous signals should not exceed 0 dB.

3) For stereo Line inputs: Adjust the sources output Gain until transients are regularly hitting +6 dB.

Continuous signals should not exceed 0 dB.

4) If EQ is used, repeat steps 1 - 3.

5) If an insert is used to patch in a compressor, gate, EQ etc., use the outboard processors bypass or effect

off switch to A/B monitor the effect. If it does not have a bypass switch or equivalent, you will have to keep

connecting and disconnecting the device until you complete the following procedure: Adjust the processors

output level so that effected and bypassed signals are of comparable level, i.e. unity gain.

6) Solo/PFL switch UP. Move onto next channel.

5. SETTING UP

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Behringer MX1604A User Manual Page 13