Behringer 1202FX 用户手册

XENYX 1002FX/1202FX

CLIP

The CLIP-LEDs of the mono channels illuminate when the

input signal is driven too high, which could cause distortion. If

this happens, use the TRIM 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.
FX

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 first taken from the stereo input before it is sent to

the FX bus.
BAL

The BAL(ANCE) control determines the levels of left and right

input signals relative to each other before both signals are then

routed to the main stereo mix bus. If a channel is operated in

mono via the left line input, this control has the same function as

the PAN control used in the mono channels.
LEVEL

The LEVEL control determines the volume of the channel being

sent to the main mix.
+4/-10

The stereo inputs of the XENYX have an input sensitivity switch

which selects between +4 dBu and -10 dBV. At -10 dBV (home-

recording level), the input is more sensitive (requires less level

to drive it) than at +4 dBu (studio level).

TRIM

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.

The scale has 2 different value ranges: the first value range

(+10 to +60 dB) refers to the MIC input and shows the

amplification 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 TRIM control is turned all the way down, connect your

equipment. Set the TRIM 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 TRIM slightly,

for -10 dBV a bit more. Tweaking is done using the CLIP LED.
EQ

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.

The upper (HIGH) and the lower band (LOW) 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. Unlike shelving

filters, the peak filter 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 filter (slope at 18 dB/oct., -3 dB at 75 Hz) 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

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 consoles FX send output and can be fed

from there to an external effects device. The return from the

effects 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 effects devices (reverb, delay, etc.)

and are therefore configured post-fader. This means that the

mix between dry signal and effect remains at the level determined

by the channels aux send, irrespective of the channel fader

setting. If this were not the case, the effects signal of the channel

would remain audible even when the fader is lowered to zero. With

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

In the 1002FX/1202FX, the FX send is routed directly to the

built-in effects processor. To make sure that the effects

processor receives an input signal, you shouldnt turn this control

all the way to the left (-oo).
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 channels signal to

the effects processor!

2. CONTROL ELEMENTS AND CONNECTORS