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XENYX 1204FX/1204 User Manual
Online registration
1.3.3  
Please register your new BEHRINGER equipment right after your purchase 
by visiting http://behringer.com and read the terms and conditions of our 
warranty carefully. 
Should your BEHRINGER product malfunction, it is our intention to have it 
repaired as quickly as possible. To arrange for warranty service, please contact 
the BEHRINGER retailer from whom the equipment was purchased. Should your 
BEHRINGER dealer not be located in your vicinity, you may directly contact 
one of our subsidiaries. Corresponding contact information is included in the 
original equipment packaging (Global Contact Information/European Contact 
Information). Should your country not be listed, please contact the distributor 
nearest you. A list of distributors can be found in the support area of our website 
(http://behringer.com)
Registering your purchase and equipment with us helps us process your repair 
claims more quickly and efficiently. 
Thank you for your cooperation!
Control Elements and Connectors 
2.  
This chapter describes the various control elements of your mixing console. 
All controls, switches and connectors will be discussed in detail.
Mono channels
2.1  
Microphone and line inputs 
2.1.1  
MIC
Each mono input channel offers a balanced 
microphone input via the XLR connector and also 
features switchable +48 V phantom power supply for 
condenser microphones. The XENYX preamps provide 
undistorted and noise-free gain as is typically known 
only from costly outboard preamps.
Please mute your playback system before 
◊ 
you activate the phantom power supply to 
prevent switch-on thumps being directed 
to your loud speakers. Please also note the 
instructions in chapter 2.4.2 “Voltage supply, 
phantom power and fuse”.
LINE IN
Each mono input also features a balanced line input on a ¼" connector. 
Unbalanced devices (mono jacks) can also be connected to these inputs.
Please remember that you can only use either the microphone 
◊ 
or the line input of a channel at any one time. You can never use 
both simultaneously!
LOW CUT
The mono channels of the mixing consoles have a high-slope LOW CUT filter for 
eliminating unwanted, low-frequency signal components (75 Hz, 18 dB/octave).
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.
Fig. 2.1: Connectors and 
controls of mic/line inputs
Equalizer
2.1.2  
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 (HI) and the lower band (LO) 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.
Aux sends
2.1.3  
Aux sends take signals via a control from one or 
more channels and sum these signals to a so-called 
bus. This bus signal is sent to an aux send connector 
and then routed, for example, to an active monitor 
speaker or an external effects device. The return from 
an external effect can then be brought back into the 
console via the aux return connectors.
For situations which require effects processing, 
the aux sends are usually switched post-fader so that 
the effects volume in a channel corresponds to the position of the channel fader. 
If this were not the case, the effects signal of the channel would remain audible 
even when the fader is turned to zero. When setting up a monitor mix, the aux 
sends are generally switched to pre-fader; i.e. they operate independently of the 
position of the channel fader.
Both aux sends are mono, are sourced after the equalizer and offer up to 
+15 dB gain.
If you press the MUTE/ALT 3-4 switch, aux send 1 is muted, 
◊ 
provided that it is switched post-fader. However, this does not affect 
the aux send 2 of the 1204FX.
AUX 1 (MON)
In the 1204FX, aux send 1 can be switched pre-fader and is thus particularly 
suitable for setting up monitor mixes. In the 1204, the first aux send is labeled 
MON and is permanently switched pre-fader.
PRE
When the PRE switch is pressed, aux send 1 is sourced pre-fader.
AUX 2 (FX)
The aux send labeled FX is for sending to effects devices and is thus set up to be 
post-fader.
In the 1204FX, the FX send is routed directly to the built-in effects processor.
If you wish to use the internal effects processor, the STEREO AUX 
◊ 
RETURN 2 connectors should not be in use.
1204FX: you can also connect an external effects processor to 
◊ 
aux send 2, however the internal effects module will be muted.
Fig. 2.2: The equalizer 
of the input channels
Fig. 2.3: The AUX SEND 
controls in the channel strips