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10

POWER

Use the POWER switch to power up the mixing console.
PHANTOM

The PHANTOM switch activates the phantom power supply for the XLR connectors of the mono channels which is required to operate condenser microphones. The red

+48 V LED lights up when phantom power is on. As a rule, dynamic microphones can still be used with phantom power switched on, provided that they are wired in a balanced configuration. In case of doubt, contact the microphone manufacturer!

◊After the phantom power supply has been switched on, do not connect microphones to the mixer

(or the stagebox/wallbox). Connect the microphones before you switch phantom power on. In addition, the monitor/PA loudspeakers should be muted before activating the phantom power supply. After switching on, wait approx. one minute to allow the system

to stabilize.
◊Caution! You must never use unbalanced

XLR connectors (PIN 1 and 3 connected) on the MIC input connectors if you want to use the phantom power supply.

SERIAL NUMBER
Please note the important information on the serial number given in chapter 1.3.3.

3. Digital Effects Processor

Fig. 3.1: Digital effects module (only X1204USB)
24-BIT MULTI-EFFECTS PROCESSOR

Here you can find a list of all presets stored in the multi- effects processor. This built-in effects module produces high-grade standard effects such as reverb, chorus, flanger, delay and various combination effects. The integrated effects module has the advantage of requiring no wiring. This way, the danger of creating ground loops or uneven signal levels is eliminated at the outset, completely simplifying the handling.

These effect presets are designed to be added to dry signals. If you move the FX TO MAIN control, you mix the channel

XENYX 1204USB/X1204USB User Manual

signal (dry) and the effect signal.

This also goes for mixing effects signals with the monitor mix. The main difference is that the mix ratio is adjusted using the FX TO MON control. Of course, a signal has to be fed into the effects processor via the FX control in the channel strip for both applications.

◊On the following page, you will find an illustration showing how to connect your foot switch correctly.

LEVEL

The LED level meter on the effects module should display a sufficiently high level. Take care to ensure that the clip LED only lights up at peak levels. If it is lit constantly, you are overloading the effects processor and this could cause unpleasant distortion. The FX control (AUX SEND 2) determines the level that reaches the effects module.

PROGRAM

You can select the effect preset by turning the PROGRAM control. The display flashes the number of the current preset. To recall the selected preset, press the button; the flashing stops. You can also recall the selected preset with the foot switch.

4. Installation

4.1 Rack mounting

The packaging of your mixing console contains two 19" rack mount wings which can be installed on the side panels of the console.

Before you can attach the rack mount wings to the mixing console, you need to remove the screws holding the left and right side panels. Use these screws to fasten the two wings onto the console, being careful to note that each wing fits a specific side. With the rack mount wings installed, you can mount the mixing console in a commercially available 19" rack. Be sure to allow for proper air flow around the unit, and do not place the mixing console close to radiators or power amps, so as to avoid overheating.

◊Only use the screws holding the mixing console side panels to fasten the 19" rack mounts.

4.2 Cable connections

You will need a large number of cables for the various connections to and from the console. The illustrations below show the wiring of these cables. Be sure to use only high- grade cables.

XENYX 1204USB/X1204USB User Manual

strain relief clamp sleevetipsleevepole 1/groundtip pole 2

The footswitch connects both poles momentarily

¼" TS footswitch connectorFig. 4.1: ¼" TS connector for foot switch
4.2.1 Audio connections
Please use commercial RCA cables to wire the 2-track inputs and outputs.

You can, of course, also connect unbalanced devices to the balanced input/outputs. Use either mono plugs, or ensure that ring and sleeve are bridged inside the stereo plug (or pins 1 & 3 in the case of XLR connectors).

◊Caution! You must never use unbalanced XLR connectors (pin 1 and 3 connected) on the MIC inputs if you intend to use the phantom power supply.

input

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3

1 = ground/shield2 = hot (+ve)3 = cold (-ve)output

12

3

For unbalanced use, pin 1 and pin 3 have to be bridged

Balanced use with XLR connectorsFig. 4.2: XLR connections

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Strain relief clampSleeveTipSleeve (ground/shield)

Tip

(signal)Unbalanced ¼" TS connectorFig. 4.3: ¼" TS connectorstrain relief clampsleeve ring tipsleeve ground/shieldringcold (-ve)

tip

hot (+ve)

For connection of balanced and unbalanced plugs, ring and sleeve have to be bridged at the stereo plug.

Balanced ¼" TRS connectorFig. 4.4: ¼" TRS connector

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