Behringer DX2000USB Data Sheet

Page of 16
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PRO MIXER DX2000USB User Manual
1.6  Packing
Your BEHRINGER PRO MIXER DX2000USB was carefully packed in the factory 
and the packaging was designed to protect the unit from rough handling. 
Nevertheless, we recommend that you carefully examine the packaging and its 
contents for any signs of physical damage, which may have occurred in transit.
◊ 
If the unit is damaged, please do not return it to us, but notify your 
dealer and the shipping company immediately, otherwise claims for 
damage or replacement may not be granted. Shipping claims must be 
made by the consignee.
2.  Mono Input Channel
Plug a mic or line source (tape, CD player etc.) into the appropriate MIC  
(52) 
 or 
LINE  
(51)
  input. Speak or play music at typical volume to check out and set up 
the channel. 
◊ 
Mic and line inputs are on balanced XLR and ¼" jacks respectively. 
Balanced operation gives best noise performance. Unbalanced 
microphones need to have XLR pins 1 and 3 shorted. Any Line source 
will work perfectly well if a mono jack is used, or the ring and barrel of 
a TRS jack are shorted (see chapter 10 “CONNECTIONS”).
2.1  Input selection
Inputs are on the back panel. Your input source is selectable between MIC and 
LINE by a switch  
(1)
. A pair of associated LEDs  
(2)
  lets you know which input 
is selected.
2.2  Gain setting
◊ 
Gain is dependent on EQ. Set up your EQ before fine-tuning gain. If you 
re-EQ, also re-check gain.
2.2.1  Quick way
Channel input level is continuously monitored by a pair of LEDs  
(3)
. As long as the 
SIG. LED is flickering and the CLIP is not, the gain is reasonable. Mic channel input 
level can be continuously adjusted by the GAIN knob  
(4)
  (from +10 to +60 dB; 
Mic signals are low, therefore they need to be heavily pre-amplified).
CLIP lets you know if you overload the channel (it lights at +18 dB).
◊ 
SIG. lets you know if a signal is present (it only responds to bass 
frequencies). That’s why you can use it to keep an eye on the beats.
◊ 
If you are using a mono line source in a mic channel, the gain structure 
is comparable to that on a stereo music channel, albeit 20 dB more 
sensitive. (from - 10 to + 40 dB ; = 20 dB pad on mic input)
2.2.2  Gain setting by using PFL 
Pre-Fader-Listen is the professional way to set gain. Hit the PFL button  
(13)
  to 
temporarily send the channel signal to the PFL bargraph meter  
(39)
. Adjust the 
GAIN control until the bargraph meters are in the yellow (0 dB) but not the red 
(Clip). Once gain has been set for a channel, release its PFL button. 
◊ 
You will usually want to PFL only one channel at a time, otherwise the 
PFL meter reading will be meaningless.
2.3  Insert point
Situated on the rear of the console, mic channels have insert points  
(50) 
 on TRS 
jacks. (These are post-gain and pre-EQ). You can use these combined input/
output sockets to put a compressor, gate or any other signal processor(s) in line 
with your microphone (see chapter 10 “CONNECTIONS”).
◊ 
Compressors can help even out voice volume, adding loads of energy, 
but they can also cause feedback problems if over-used. Noise gates 
shut off mics automatically when not in use—useful for keeping 
out music spillage which can muddy the sound of your mix. Often a 
compressor/gate combination is best. Check out the excellent 
BEHRINGER range of interactive dynamics products.
2.4  Equalizer
The mic channel EQ section comprises three control knobs and one switch. 
Depressing the LOW CUT switch  
(5) 
 rolls off the bass end (-18 dB/oct @ 75 Hz). 
We recommend using this feature with microphones to eliminate “popping” 
and handling noise. Where loud music is playing, LOW CUT also helps to avoid 
bass feedback. Separate controls cut and boost HIGH  
(6)
, MID  
(7) 
 and LOW  
(8) 
 frequencies respectively. Use EQ creatively to sweeten the sound of your 
microphone, or defensively to help cut feedback (see below for EQ specifications).
EQ
Frequency
Range
Centre
High
Shelving EQ
10 kHz
+/– 12 dB
OFF
Mid
Peaking EQ
750Hz
+/- 8 dB 
OFF
Low
Sheiving EQ
50Hz
+/– 12 dB
OFF
Tab. 2.4: Equalizer of the mono input channels
◊ 
If you are serious about your mic channel, and want to really kill 
feedback, you can patch our FEEDBACK DESTROYER PRO DSP1124P 
across the channel insert point at the rear of the console. It is ideal for 
this purpose.
2.5  Output
Mic channel output is fed directly into the main mix, not via the X and Y subgroup 
channels. Level is controlled by a precision 100 mm fader  
(14)
, while stereo 
position is set by the PAN control  
(10)
. The channel signal is sent to the mix by 
depressing the CHANNEL ON switch  
(12)
. A LED indicator illuminates when the 
channel is on. (Channel on is the inverse of the more traditional channel mute 
found on standard recording consoles).
◊ 
The mic channels are routed to the RECORD OUT jacks  
(66) 
 on the rear 
panel of the DX2000USB, but not to the LINE OUT jacks  
(22)
  situated to 
the left of the main meters.
◊ 
The faders used are special high-quality true-log faders. These give 
ultra-smooth operation even at low levels, on par with those used in 
very expensive studio consoles.
2.6  Effects
You can patch a mono or stereo outboard effects processor into your DX2000USB 
via the SEND  
(53) 
 and RETURN  
(54) 
 jacks on the back panel. Now you can add 
effects to your voice instantly simply by punching the illuminated EFFECT button 
(9)
. The effect send level is dependent on the fader setting. Adjust the desired 
amount of effect (from -oo to +30 dB) by the FX RETURN knob  
(42) 
 to the right of 
the bargraph meters. 
◊ 
Set your effects unit input level so that the input meter reading 
(if there is one) is healthy when you are sending a typical signal to it. 
Too low a level will mean too much hiss on your effects return, too high 
and you’ll get distortion.
3.  Stereo Input Channel
Plug a phono (turntable) or line source (CD player etc.) into the appropriate 
PHONO/LINE  
(59)
  or CD  
(58) 
 input. Play music at a typical volume to check out 
and set up the channel. Press the PHONO/LINE button if you would like to use the 
PHONO/LINE jacks for a line-level source instead of a turntable.