Behringer ULTRAGRAPH PRO FBQ3102 Manual - Page 8

Limiter, Threshold, Pink Noise, Noise Level, Sub Out, Level, Subwoofer - settings

Get Behringer ULTRAGRAPH PRO FBQ3102 PDF manuals and user guides View all Behringer ULTRAGRAPH PRO FBQ3102 manuals
Add to My Manuals
Save this manual to your list of manuals

Page 8 highlights

8 ULTRAGRAPH PRO FBQ6200/FBQ3102/FBQ1502 User Manual (18) The ULTRAGRAPH PRO FBQ6200 features a built-in limiter for each channel. Use the LIMITER switch for its activation. (18) (20) (19) (21) (22) (23) (26) (25) (24) Fig. 2.4: FBQ6200 control elements (19) The limiter display informs you about the amount of gain reduction perfomed by the limiter. (20) The limiter confines the signal to an adjustable signal level. Use the THRESHOLD control to adjust the threshold value of the limiter from -6 to +22 dB. When the control is in the "-6 dB" setting, the gain reduction is very pronounced; the more you turn the control toward "+22 dB", the gain reduction is lower. When the threshold control is in its right-most position, the limiter is not applied. 2.3.2 Noise generator By using the built-in noise generator, you can create the so-called "pink noise" that can be used to adjust your P.A. system to specific acoustic characteristics of various venues. (21) Activate the pink noise generator by using the PINK NOISE switch. The built-in switch illumination blinks red when the pink noise generator is activated. (22) Read off the noise generator's signal level on the LED display. (23) Use the NOISE LEVEL control to adjust the volume of the pink noise you generate. Room resonance and sound transfer characteristics of the P.A. system cause some frequencies to be more prominently present while other frequencies are less present. Pink noise is a neutral signal that can be played back via the P.A. system in order to measure these sound characteristics. Such a measurement of the frequency response by using a special microphone in conjunction with a real-time analyzer (a real-time analyzer is for example integrated into the BEHRINGER ULTRACURVE PRO DEQ2496) delivers the basis for setting up the equalizer. More pronounced frequencies are lowered, and those frequencies that are not so prominently featured are increased, thus approximately achieving linear reproduction. ◊ Try to orient yourself on a frequency whose signal level lies in the 0 dB to -3 dB range in order to avoid overdriving the equipment connected (e.g. power amplifier, crossover). 2.3.3 Subwoofer section (24) The LED display indicates the signal level present at the SUB OUT connector. (25) The signal level present at the subwoofer output connector can be adjusted by using the LEVEL control. (26) To activate the subwoofer output, please depress the SUBWOOFER switch. In general, the location of a subwoofer is not critical, since the source of deeper freqencies is not easily determined. However, to achieve optimal sound resolution, you should try to position the subwoofer in a central location between the two main speakers. This way, you minimize run-time differences and the sound quality deterioration associated with them.

  • 1
  • 2
  • 3
  • 4
  • 5
  • 6
  • 7
  • 8
  • 9
  • 10
  • 11
  • 12
  • 13
  • 14
  • 15
  • 16
8
ULTRAGRAPH PRO FBQ6200/FBQ3102/FBQ1502 User Manual
(18)
The ULTRAGRAPH PRO FBQ6200 features a built-in limiter for each channel.
Use the
LIMITER
switch for its activation.
(19)
(21)
(22)
(20)
(18)
(26)
(25)
(24)
(23)
Fig. 2.4: FBQ6200 control elements
(19)
The limiter display informs you about the amount of gain reduction
perfomed by the limiter.
(20)
The limiter confines the signal to an adjustable signal level. Use the
THRESHOLD
control to adjust the threshold value of the limiter from -6 to
+22 dB. When the control is in the “-6 dB” setting, the gain reduction is
very pronounced; the more you turn the control toward “+22 dB”, the gain
reduction is lower. When the threshold control is in its right-most position,
the limiter is not applied.
2.3.2
Noise generator
By using the built-in noise generator, you can create the so-called “pink noise”
that can be used to adjust your P.A. system to specific acoustic characteristics of
various venues.
(21)
Activate the pink noise generator by using the
PINK NOISE
switch.
The built-in switch illumination blinks red when the pink noise generator
is activated.
(22)
Read off the noise generator’s signal level on the
LED
display.
(23)
Use the
NOISE LEVEL
control to adjust the volume of the pink noise
you generate.
Room resonance and sound transfer characteristics of the P.A. system cause some
frequencies to be more prominently present while other frequencies are less
present. Pink noise is a neutral signal that can be played back via the P.A. system
in order to measure these sound characteristics.
Such a measurement of the frequency response by using a special microphone
in conjunction with a real-time analyzer (a real-time analyzer is for example
integrated into the BEHRINGER ULTRACURVE PRO DEQ2496) delivers the basis
for setting up the equalizer. More pronounced frequencies are lowered,
and those frequencies that are not so prominently featured are increased,
thus approximately achieving linear reproduction.
◊
Try to orient yourself on a frequency whose signal level lies in the 0 dB
to -3 dB range in order to avoid overdriving the equipment connected
(e.g. power amplifier, crossover).
2.3.3
Subwoofer section
(24)
The
LED
display indicates the signal level present at the
SUB OUT
connector.
(25)
The signal level present at the subwoofer output connector can be adjusted
by using the
LEVEL
control.
(26)
To activate the subwoofer output, please depress the
SUBWOOFER
switch.
In general, the location of a subwoofer is not critical, since the source of
deeper freqencies is not easily determined. However, to achieve optimal sound
resolution, you should try to position the subwoofer in a central location between
the two main speakers. This way, you minimize run-time differences and the
sound quality deterioration associated with them.