Behringer Shark FBQ100 User Manual

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SHARK FBQ100 User Manual
(21) 
Use the INPUT LEVEL switch to select the input sensitivity (microphone or 
line levels). In LINE mode, you can use the CLIP LEVEL control to adapt the 
internal level settings to the digital circuitry. Please make sure that the 
CLIP-LED will not light up.
(22) 
The PHANTOM switch enables the Phantom Power supply required for 
condenser microphones.
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The PHANTOM CONTROL LED lights up when Phantom Power is on.
2.  Applications
2.1  Wiring the FBQ100: general remarks
With its great versatility the SHARK can be used for a variety of applications. 
This chapter describes connection and configuration examples of the most 
common applications.
2.1.1  Connection between microphone and 
mixing console
In live applications it is often useful to protect specific single microphones against 
feedback. We therefore recommend that you connect the SHARK between your 
microphone and a microphone input on your mixing console (OUTPUT LEVEL 
switch set to MIC). If all mic inputs are in use, you can set the SHARK’s OUTPUT 
switch to +4 dBu (switch pressed) and adapt the output signal of your SHARK to 
a line input on your console using the MIC GAIN control. To prevent the occurrence 
of subsonics you can activate the SHARK’s Low Cut filter. Switch on Phantom 
Power when you are using condenser microphones.
Mic In / Line In
Mic / +4 dBu Mic
Fig. 2.1: The SHARK connected between microphone and microphone input on console
2.1.2  Connection between line-level source and 
mixing console
At first sight, this configuration may seem to make no sense, because line-level 
sources usually have no problems with feedback frequencies. However, acoustic 
instruments are often equipped with so-called piezo pickups which are 
susceptible to feedback. In such a case, we recommend that you route the audio 
signal through the SHARK before feeding it into the console.
Line In
+4 dBu
Line
Fig. 2.2: The SHARK connected between acoustic guitar and line input on console
2.1.3  Connection between mixing console and 
power amplifier
When you use the SHARK as a Delay Line unit for speaker systems placed at 
various positions (see chapter 2.3), you should connect the SHARK between the 
console’s output and the input of the power amp driving the “delayed” speakers.
Delayed Speakers
Speakers on Stage
+4 dBu
Master Out
Line
Fig. 2.3: The SHARK connected between console and power amp
2.1.4  The SHARK used in the monitor path
Inserting the FBQ100 in the monitor path of your mixing console gives you 
utmost protection against unwanted feedback. Monitor paths are particularly 
susceptible to feedback, because on stage there are usually several microphones 
and speakers placed close to each other. Especially vocal microphones pose 
some problems, because their volume levels must be fairly high to be able to 
“compete” with other instruments, and often these microphones are hand-held 
and hence carried around on stage. It is therefore useful to protect the monitor 
path against feedback. In particular, when used in the monitor path, the SHARK 
produces a positive side effect in that it improves both sound and volume of the 
monitors. By filtering interference it makes the sound more transparent and by 
eliminating unwanted feedback it allows for raising the volume of the monitors, 
an effect that is usually welcomed by musicians on stage. Another advantage 
when using this configuration: one SHARK can control several microphones. As at 
least four monitor paths are used in a typical live application, all you need are 
four SHARKs to give you optimum feedback protection.