Behringer 1202FX - Manual (Page 6)

6
XENYX 1002FX/1202FX
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 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 console’s 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 channel’s 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 shouldn’t 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 channel’s signal to
the effects processor!
2. CONTROL ELEMENTS AND CONNECTORS