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6 XENYX QX1202USB/QX1002USB User Manual

GAIN

Use the GAIN 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.

The scale has 2 dierent value ranges: the rst value range (+10 to +60 dB)

refers to the MIC input and shows the amplication for the signals fed in there.

The second value range (-10 to +40 dBu) refers to the line input and shows

its sensitivity. The settings for equipment with standard line-level signals

(-10dBVor +4 dBu) look like this: While the GAIN control is turned all the way

down, connect your equipment. Set the GAIN control to the external devices’

standard output level. If that unit has an output signal level display, it should

show 0 dB during signal peaks. For +4dBu, turn up GAIN slightly, for-10dBV a

bit more. Tweaking is done using the CLIP LED.

COMP

Use the COMP knob to adjust the amount of compression eect on the channel.

Compression limits the dynamic range of the audio source, which can help vocals

cut through a mix better, for example. Turn the COMP knob clockwise until the

adjacent LED occasionally lights during speech/singing.

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 eects. The result are extremely musical equalizers which, unlike simple

equalizers, cause no side eects such as phase shifting or bandwidth limitation,

even with extreme gain settings of ±15 dB.

The upper (HIGH) and the lower band (LOW) are shelving lters that increase

or decrease all frequencies above or below their cut-o frequency. The cut-o

frequencies of the upper and lower band are 12 kHz and 80Hz respectively.

Themid band is congured as a peak lter with a center frequency of 2.5 kHz.

Unlikeshelving lters, the peak lter processes a frequency range that extends

upwards and downwards around its middle frequency.

LOW CUT

In addition, the mono channels are equipped with a steep LOW CUT lter

designed to eliminate unwanted low-frequency signal components. Thesecan

be noises created by hand-held microphones, subsonicnoise or plosive sounds

created by highly sensitivemicrophones.

FX sends enable you to feed signals via a variable control from one or more

channels and sum these signals to a bus. The bus appears at the console’s FX send

output and can be fed from there to an external eects device. The return from

the eects unit is then brought back into the console on the stereo channels.

Each FX send is mono and features up to +15 dB gain.

As the name suggests, the FX sends of the XENYX mixing consoles are intended to

drive eects devices (reverb, delay, etc.) and are therefore congured post-fader.

With XENYX mixing consoles, the channel fader is called LEVEL control.

In the QX1002/1202USB, the FX send is routed directly to the built-in eects

processor. To make sure that the eects processor receives an input signal,

youshouldn’t turn this control all the way to the left (-∞).

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.

LEVEL

The LEVEL control determines the level of the channel signal in the main mix.

◊ Attention: Since the FX path for the effect processor is connected

post-fader, the LEVEL control has to be turned up in order to get this

channel’s signal to the effects processor!

CLIP

The CLIP-LED’s of the mono channels illuminate when the input signal is driven

too high, which could cause distortion. If this happens, use the GAIN control to

reduce the preamp level until the LED does not light anymore.

2.2 Stereo channels

Fig. 2.2: Connectors and controls on the stereo channels

LINE IN

Each stereo channel has two balanced line level inputs on ¼" connectors for left

and right channels. If only the connector marked “L” (left) is used, thechannel

operates in mono. Thestereo channels are designed to handle typical line level

signals. Both inputs will also accept unbalancedconnectors.

The FX send of the stereo channels functions similar to that of the mono channels.

However, since the FX send bus is mono, a mono sum is rst taken from the stereo

input before it is sent to the FX bus.

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