11 FEEDBACK DESTROYER PRO FBQ2496 User Manual. 5.3 FBQ2496 in studio applications. Thanks to the FBQ2496’s flexible configuration, it makes perfect sense to use it at the studio or for home recordings. When in Parametric EQ mode, the FEEDBACK DESTROYER PRO puts up to 20 fully parametric equalizers per audio channel at your disposal. May 10, 2008 Demo of the setup of the Behringer FBQ2496 Feedback Destroyer. At the beginnign of the video there are no single shot filter lit up. I place the unit into learn mode and keep increasing the volume.
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10
FEEDBACK DESTROYER PRO FBQ2496 User Manual
5. Connectivity Options
◊
The FEEDBACK DESTROYER PRO is not intended to be connected directly
to the microphones! If this is unavoidable, then we recommend our
proven BEHRINGER SHARK DSP110 instead, which is equipped with a
dedicated microphone preamplifier.
◊
No amount of fancy gear can undo the mistakes committed when
selecting the locations for microphones! Therefore, when you
set up your mics, use them according to their directivity and
feedback susceptibility.
5.1 FBQ2496 in the monitor path
Due to its 2-channel architecture, the FBQ2496 is ideal for use with two monitor
paths. Connect your mixing console
’
s pre-fader aux outputs to the FBQ2496
inputs, as shown in fig. 5.1. The monitor power amp inputs are then connected to
the FBQ2496 outputs.
Using the FBQ2496 in the monitor path can considerably augment the
volume level.
EURORACK UB2442FX-PRO
EUROLIVE B1220 PRO
FEEDBACK DESTROYER PRO FBQ2496
Pre-Fader
AUX SENDS 1
Pre-Fader
AUX SENDS 2
MAIN
OUTPUTS
OUTPUT
LEFT
INPUT
LEFT
OUTPUT
RIGHT
INPUT
RIGHT
Monitor System
PA System
FLOOR MONITOR F1220A
FLOOR MONITOR F1220A
EUROPOWER EP2000
EUROPOWER EP2000
Fig. 5.1: Using the FBQ2496 in the monitor path
5.2 FBQ2496 in channel insert
Since you want to make sure that deliberately produced feedback signals, such as
“guitar feedback,” are not eliminated, try inserting the FBQ2496 into those
channels that are susceptible to feedback. For example, you could process a vocal
microphone that is prone to producing feedback by connecting the FBQ2496 to
the insert points of the respective channel.
PA System
INPUT
LEFT
EUROLIVE B1220
EUROLIVE B1220
EUROPOWER EP1500
INPUT
RIGHT
OUTPUT
RIGHT
MAIN
OUTPUTS
INSERT
EURORACK UB2442FX-PRO
OUTPUT
LEFT
FEEDBACK DESTROYER PRO FBQ2496
Fig. 5.2: FEEDBACK DESTROYER PRO in channel insert/subgroup insert
◊
When processing a microphone signal with the DSP1124P and a
compressor inserted into the same channel insert point, the FBQ2496
should always be used pre-compressor.
If your mixing console features subgroups with their own inserts, this is perfect
for connecting the FBQ2496! Route all the channels prone to feedback (e.g. all
vocal microphones) to one subgroup. This way, channels that are less prone to
feedback (e.g. line signals, instrument microphones with lower signal levels)
can freely pass through the FBQ2496; only the critical microphone channels are
being modified.
In case your mixing console features no subgroup insert, we recommend
the following: connect the subgroup output to one FBQ2496 input. On the
other hand, the corresponding output is either connected to an unused line
input of a mixer channel or to one of its Aux Return inputs. As long as both
FBQ2496 channels are not coupled, the second FEEDBACK DESTROYER PRO
channel is available to you for a completely different purpose (e.g. use it on a
channel insert).
User’s manual
Version 1.0 March 2005
FEEDBACK DESTROYER PRO FBQ2496
IMPORTANT SAFETY INSTRUCTIONS
CAUTION: To reduce the risk of electric shock, do not remove the top cover (or the rear section). No user serviceable parts inside; refer servicing to qualified personnel.
WARNING: To reduce the risk of fire or electric shock, do not expose this appliance to rain and moisture. The apparatus shall not be exposed to dripping or splashing and no objects filled with liquids, such as vases, shall be placed on the apparatus.
This symbol, wherever it appears, alerts you to the presence of uninsulated dangerous voltage inside the enclosure—voltage that may be sufficient to constitute a risk of shock.
This symbol, wherever it appears, alerts you to important operating and maintenance instructions in the accompanying literature. Please read the manual.
DETAILED SAFETY INSTRUCTIONS:
1)Read these instructions.
2)Keep these instructions.
3)Heed all warnings.
4)Follow all instructions.
5)Do not use this apparatus near water.
6)Clean only with dry cloth.
7)Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
8)Do not install near any heat sources such as radiators, heat registers, stoves, or other apparatus (including amplifiers) that produce heat.
9)Do not defeat the safety purpose of the polarized or groundingtype plug. A polarized plug has two blades with one wider than the other. A grounding type plug has two blades and a third grounding prong. The wide blade or the third prong are provided for your safety. If the provided plug does not fit into your outlet, consult an electrician for replacement of the obsolete outlet.
10)Protect the power cord from being walked on or pinched particularly at plugs, convenience receptacles, and the point where they exit from the apparatus.
11)Only use attachments/accessories specified by the manufacturer.
12)Use only with the cart, stand, tripod, bracket, or table specified by the manufacturer, or sold with the apparatus. When a cart is used, use caution when moving the cart/apparatus combination to avoid injury from tipping over.
13)Unplug this apparatus during lightning storms or when unused for long periods of time.
14)Refer all servicing to qualified service personnel. Servicing is required when the apparatus has been damaged in any way, such as power supply cord or plug is damaged, liquid has been spilled or objects have fallen into the apparatus, the apparatus has been exposed to rain or moisture, does not operate normally, or has been dropped.
15)CAUTION - These service instructions are for use by qualified service personnel only. To reduce the risk of electric shock do not perform any servicing other than that contained in the operation instructions unless you are qualified to do so.
FEEDBACK DESTROYER PRO FBQ2496
FEEDBACK DESTROYER PRO
Ultra-fast 24-bit/96 kHz Feedback Suppressor/Parametric EQ
FBQ2496
FEEDBACK DESTROYER PRO FBQ2496
immediately as well as the transportation company from which you took delivery. Otherwise, all claims for replacement/repair may be rendered invalid.
+Please always use the original packaging to avoid damage due to storage or shipping.
+Never let unsupervised children play with the FBQ2496 or with its packaging.
+Please dispose of all packaging materials in an environmentally friendly fashion.
1.1.2 Initial operation
Be sure that there is enough space around the unit for cooling. To avoid overheating, do not place the FBQ2496 on top of power amps or near radiators, etc.
+Blown fuses must be replaced by fuses of the same type and rating. Please refer to the “SPECIFICATIONS” for further details.
The mains connection is made using the enclosed power cord and a standard IEC receptacle. It meets all international safety certification requirements.
+Please make sure that all equipment is properly grounded at all times. For your own safety, never remove or disable the ground conductor of the unit or of the AC power cord.
amplified by one or more power amplifiers and is fed into loudspeakers facing the audience.
sMonitor mix refers to the mix that also originates in the mixing console but ends up driving one or more stage monitors. Unlike FOH speakers, a stage monitor makes the music program audible to individual musicians.
+Please bear in mind that high volume levels can damage both your hearing and your equipment. Be sure to always select an appropriate volume level.
3.CONTROL ELEMENTS AND CONNECTIONS
3.1The front
1.1.3 Online registration
Please do remember to register your new BEHRINGER equipment right after your purchase by visiting www.behringer.com (alternatively www.behringer.de) and kindly read the terms and conditions of our warranty carefully.
Should your BEHRINGER product malfunction, our goal is to have it repaired as quickly as possible. To arrange for warranty service, please contact the 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 (www.behringer.com/ support).
Registering your purchase and equipment with us helps us process your repair claims quicker and more efficiently.
Thank you for your cooperation!
Fig. 3.1: Control elements on FBQ2496’s left side
LEVEL METER
The LEVEL METER lets you monitor the input level. Eight LEDs are available per channel. If the Clip LED lights up, digital distortion may occur on FBQ2496’s input. In this case, reduce the input level.
LEARN button
A quick tap on the LEARN button (LED lights up) gets you into the LEARN mode. The FBQ2496 will immediately start looking for critical frequencies and will deploy as many Single-Shot filters as necessary (of course, music or noise has to be present in the room for this to work). Besides, using the wheel , you can manually determine the number of Single-Shot filters (max. 20 per channel). See ch.4.1.
If you keep the LEARN button pressed for longer than one second (LED blinks), the FBQ2496 generates progressively louder impulses to generate feedback. The feedback thus created enters the FBQ2496 at its input, where it is recognized and suppressed. This mode is called AUTOLEARN (ch. 4.1).
2. WHAT CAUSES FEEDBACK? | PANIC |
If unexpected feedback starts occurring during a performance, | |
pressing the PANIC button can help. As long as the button is | |
kept pressed (for a maximum of 1 second), your FBQ2496 | |
rapidly searches for feedback frequencies and suppresses | |
them. | |
SPEECH | |
Pressing the SPEECH button increases the sensitivity of | |
feedback suppression; the FBQ2496 recognizes critical | |
frequencies sooner and deploys a filter that cuts in | |
appropriately. | |
Unlike with feedback caused by a distorting guitar, human | |
speech seldom produces signals that can mistakenly be | |
identified as feedback. Therefore, this mode is ideal for | |
situations in which only speech is being transmitted. Therefore, | |
your P.A. system will be substantially louder. | |
Fig. 2.1: How a feedback loop is created | FREEZE |
Once a particularly good FBQ2496 setting is achieved, you | |
A feedback loop is created when a microphone signal is first | can keep this setting by pressing the FREEZE button. All |
Single-Shot and automatic filters are kept at their settings | |
reproduced on an amplifier, and is then picked up again by the | |
until you press FREEZE again. | |
same microphone (with the same phasing). Then, it is amplified | |
FILTER LIFT | |
and reproduced again. This feedback loop may, under certain | |
The so-called “Filter Lifting Time” informs you about how Insignia ns dxa1 remote codes. | |
circumstances, keep on occurring and could escalate out of control. | |
long an adjusted automatic filter can remain inactive before | |
With P.A. applications, there are two major types of setups in | |
its values are reset again. You can set this time by first briefly | |
which feedback can occur: | |
pressing the FILTER LIFT button and then turning the wheel. | |
s Front mix (also called F.O.H. = “front of house”) refers to the | |
The following time lengths are available: 0 min, 1 min, | |
mix being created when a signal from a mixing console is | 5 min, 10 min, 30 min, 60 min. |
6
FEEDBACK DESTROYER PRO FBQ2496
You can replace fuses at the FUSE SWITCH of the FBQ2496. Always replace fuses with the same type. Please follow the instructions given in chapter 9 “SPECIFICATIONS.”
SERIAL NUMBER
Fig. 3.5: FBQ2496’s MIDI connections jacks
The FBQ2496 features a complete set of MIDI functions. In addition to the usual MIDI IN and MIDI OUT ports, the MIDI THRU allows you to loop through MIDI data.
Fig. 3.6: FBQ2496’s rear connections
Use the OPERATING LEVEL switch to change from home recording level (-10 dBV) to studio level (+4 dBu), and vice versa. The level meters are adapted automatically to the selected nominal level, so that the FEEDBACK DESTROYER PRO will always work in its optimum operating range.
INPUT LEFT/RIGHT
These are the balanced inputs of your FBQ2496. They are laid out as 1/4' TRS and XLR connectors.
OUTPUT LEFT/RIGHT
Both of the FBQ2496 outputs are also laid out as balanced 1/4' TRS and XLR connectors.
4. FBQ2496 FILTERS
The FBQ2496 filters can be set up in an extremely narrow-band fashion. This way, the FBQ2496 changes the way your music sounds to such a minor extent that the actual change is absolutely negligible and inaudible.
Fig. 4.1: Filter curve of a narrow-band filter
1.Press POWER to turn the unit on. The display shows run (run).
2.Select whether you wish to run your FBQ2496 in stereo or in mono ( ).
Let us assume that both FEEDBACK DESTROYER PRO channels are coupled in stereo.
The 20 filters pro channel can be divided up among Single-Shot filters, automatic filters and parametric filters (fig. 4.2).
+The number of all filter types per channel is always 20!
+If the number of both fixed and parametric filters is set to zero, your FBQ2496 operates with 20 automatic filters per channel.
Fig. 4.2: Different filter types (shown here in stereo operation)
4.1 Setting up Single-Shot filters
If no Single-Shot filters have been set up, the FBQ2496 looks for critical frequencies after being powered up, and deploys as many filters as necessary to combat the problem.
Single-Shot filters can be set up to work with extreme dependability and comfort. To this end, either use the LEARN or the AUTOLEARN function of your FBQ2496.
+To work with the LEARN or the AUTOLEARN function, the FBQ2496 must be connected to a PA system.
+Using the LEARN or AUTOLEARN functions only makes sense if you are dealing with PA systems and rooms that are also used for concerts and recordings.
LEARN mode
1.Briefly press the LEARN button.
The button LED lights up and the LED on the PANIC button blinks. The current number of Single-Shot filters is shown in the display. (S 0 = no Single-Shot filter selected, S20 = all filters deployed as Single-Shot filters).
The FBQ2496 immediately starts searching for critical frequencies at maximum speed and deploys as many SingleShot filters as necessary (for this to work, your room has to have a functioning PA system with a signal fed into it). The number of filters deployed will be increased on a per-need basis and will be shown in the display.
2.You can use the wheel to change the number of Single-Shot filters afterwards as well.
3.Press the LEARN button again to exit.
AUTOLEARN mode
This function is useful for automatically setting up Single-Shot filters before the start of a live performance (“priming” the unit).
1.Keep the LEARN button pressed for longer than one second. Then, the following happens automatically:
s The button LED blinks.
s All Single-Shot filters and automatic filters are reset. s A time countdown runs in the display, from 16 seconds
to zero (L16, L15, .. , L 1, L 0).
The FBQ2496 creates impulses with a signal level of -15 dB in order to provoke feedback. The overall amplification of your FBQ2496 is incrementally increased from 0 dB to 15 dB). The FEEDBACK DESTROYER PRO detects the critical frequencies and lowers them in an extremely narrow-band fashion.
2.Critical frequencies are consecutively lowered and stored in the storage slots of the Single-Shot filters.
3.After the time had run out, the procedure is over. The LED on the LEARN button is no longer lit and the display shows run.
+The frequency of the adjusted Single-Shot filters can not be manually changed afterwards. However, minor feedback frequency changes are implemented automatically. Gain adjustment is also automatically performed in the background, constantly adjusting to the current conditions.
+If a satisfactory setting for the Single-Shot and automatic filters has been achieved, you can keep this setting by pressing the FREEZE button. The display shows: -.
FEEDBACK DESTROYER PRO FBQ2496
4.2 Setting up parametric filters
Some or even all 40 filters on your FBQ2496 can be deployed as parametric filters. They have to be set up in a targeted fashion, with great precision. The frequency, bandwidth and gain parameters are available.
Selecting the number of parametric filters
1.Keep the PEQ button pressed for a few moments. The LED on the PEQ button blinks, and the display shows the current number of parametric filters (p 0 = no parametric filters deployed, P20 = all filters are parametric). Additionally, the LEDs on the deployed Single-Shot filters are lit.
2.You can use the wheel to change the number of parametric filters.
The display shows the number of deployed parametric filters,
and the corresponding LEDs in the status display ( ) are lit.
3.Pressing the PEQ button again briefly completes the procedure.
+Now, the only parametric filters whose LEDs are still lit are those whose gain (either positive or negative) does not equal zero.
Setting up frequency, bandwidth, gain
You should implement the following procedure with each individual parametric filter:
1.Briefly press the PEQ button.
The LED on the PEQ button is lit. The display indicates the number of the selected filter (e.g. 19).
2.Use the wheel to select the parametric filter whose values you wish to modify.
+Any filter may be selected using the wheel! However, the parameters of the Single-Shot and automatic filters can only be displays and can not be modified!
3.After you press the FREQUENCY button, use the wheel to set the filter mid frequency (the LED on the button blinks).
You can get a precise readout of the set mid frequency by observing the display and the status of the Hz/kHz LED next to it.
To modify exactly the frequency band you have in mind, you can shift the filter’s bandwidth.
4.Briefly press the BANDWIDTH button.
5.Turning the wheel changes the filter’s bandwidth. The 1/60
LED lights up if a value lower than 0.1 is set (1 x 1/60, 2 x 1/60 .. 5 x 1/60). In case of larger bandwidths, the value is shown directly in the display (0.1, 0.2 .. 1.0, 1.1 .. 10.0).
A parametric filter becomes engaged only after an increase/ decrease of the set frequency is entered:
6.Briefly press the GAIN button. The LED on the button is lit. At the same time, the dB LED under the 3-digit display is also lit.
7.The gain can be adjusted using the wheel. The available values range from 15 dB to - 36 dB (can be changed in 0.5-dB increments in the +15 dB to -15 dB range; in 1-dB increments in the -16 to -36 dB range). The value is shown in the display.
+The FBQ2496 has a 3-digit display. Positive values are easily represented (14, 14.5, 15). For negative values, complete representation would require 4 digits. However, because the display only shows 3 digits, the position after the decimal point is omitted and replaced by a dot to the right of the first two digits (-15, -14.(5), -14, -13.(5)), which stands for the missing decimal value.
8.Press the PEQ button briefly again to complete the procedure.
+The status display only shows the filters whose gain does not equal to zero (either positive or negative).
4.3 Setting up automatic filters
The number of automatic filters can not be separately set. It results from the number of fixed and parametric filters (fig. 4.2).
+To lower the number of automatic filters, increase the number of Single-Shot and/or parametric filters.
The automatic filters automatically spring into action on a perneed basis during a performance or a recording session. Of course, having the FBQ2496 react to changing situations would be desirable. To allow for this, you need to establish a setup in which the automatic filters are only periodically active, setting themselves back to zero afterwards in order to be ready for the next instance in which feedback is occurring.
The so-called “Filter Lifting Time” informs you about how long a filter set to automatic may remain active before its values are reset back to zero. This Filter Lifting Time can be set on the FBQ2496.
1.Press the FILTER LIFT button. The LED on the button starts to blink.
2.Using the wheel, Filter Lifting Time can either be turned off (off) or can be set to 1 min, 5 min, 10 min, 30 min or 60 min.
3.To exit this menu, press the FILTER LIFT button again. The LED no longer blinks.
4.If a Filter Lifting Time value has been set (i.e. any value other than off!), the button LED is lit.
+If a satisfactory setting for the Single-Shot and automatic filters has been achieved, you can keep this setting by pressing the FREEZE button. The display shows: -.
5.CONNECTIVITY OPTIONS
+The FEEDBACK DESTROYER PRO is not intended to be connected directly to the microphones! If this is unavoidable, then we recommend our proven BEHRINGER SHARK DSP110 instead, which is equipped with a dedicated microphone preamplifier.
+No amount of fancy gear can undo the mistakes committed when selecting the locations for microphones! Therefore, when you set up your mics, use them according to their directivity and feedback susceptibility.
5.1 FBQ2496 in the monitor path
Due to its 2-channel architecture, the FBQ2496 is ideal for use with two monitor paths. Connect your mixing console’s pre-fader aux outputs to the FBQ2496 inputs, as shown in fig. 5.1. The monitor power amp inputs are then connected to the FBQ2496 outputs.
Using the FBQ2496 in the monitor path can considerably augment the volume level.
9
FEEDBACK DESTROYER PRO FBQ2496
7. MIDI CONTROL
MIDI stands for “Musical Instrument Digital Interface.” It is a “language” used to transmit control information between different electronic devices: instruments, PCs, drum computers, effects units, etc. That way, a device’s parameters can be automatically modified at a previously determined point in time.
To make such communication possible, the following conditions have to be met:
sAll devices must be correctly connected to one another.
sOne device, called “master,” sends MIDI information via one or several MIDI channels. The device receiving control information, called “slave,” has to be set to the correct MIDI channel in order to receive the information.
sThe control information being sent has to be “understood” by the MIDI devices receiving it.
7.1 MIDI connections
The MIDI connectors found on the rear panel are on internationally standardized 5-pin DIN jacks. You need dedicated MIDI cables to connect the FBQ2496 to other MIDI equipment. Normally, complete cables will be purchased for this use. MIDI cables should have a maximum length not exceeding 15 meters.
MIDI IN: Receives MIDI control data. The receive channel is determined in the SETUP menu.
MIDI THRU: Provides an unchanged copy of the signal received at the MIDI IN, for example, to daisy-chain several FBQ2496.
MIDI OUT: Transmits MIDI data to a connected computer or other FBQ2496. Transmitted are program data as well as status information for signal processing.
+No loop lines are allowed with MIDI connections, i.e. the master device can send only control information, and the slave device(s) can only receive control information–and not the other way around. Depending on your application, some devices can function both as masters and slaves.
7.2 Activating and deactivating MIDI
With some applications, having the option to disable the MIDI function of a device can be useful. This means that the device does not react to the incoming MIDI control data; instead, it merely passes the incoming MIDI signal through.
The FBQ2496 gives you the option to decide whether it should react to incoming MIDI control data.
Behringer Fbq1000 Feedback Destroyer
+Even when the MIDI function is deactivated on the FBQ2496, the MIDI signal still passes through the unit and can be tapped into at the MIDI THRU connector.
1.Press BANDWIDTH and BYPASS simultaneously. The MIDI menu is activated if the LEDs on both buttons as well as the MIDI LED under the display are blinking.
2.Press the BANDWIDTH button; then use the wheel to activate or deactivate MIDI.
MIDI on: on MIDI off: off
3.Press any button to exit this menu.
7.3 Adjusting a MIDI channel
Using a MIDI channel, a master can transmit 16 different data segments, each one using its own channel. To make sure a slave only receives the information intended for it, the corresponding MIDI channels have to be assigned to it first.
1.Press BANDWIDTH and BYPASS simultaneously. The MIDI menu is activated if the LEDs on both buttons as well as the MIDI LED under the display are blinking.
2.Press BANDWIDTH again. Now, a MIDI channel can be selected using the wheel. The display shows channel numbers as follows: c 1, .. c14, c15, c16.
3.Press any button to exit this menu.
7.4 MIDI controller
Each one of the 16 MIDI channels can transmit a lot of different information–for example, note, keystroke strength and the so-called controllers.
A controller is a command (e.g. instrument, volume, balance, footswitch position) that in certain situations has to be defined very specifically. A total of 128 different controllers can be set up. There are several standards (0 = bank select, 7 = main volume) but no fixed norm for the assignment of controllers to specific controller numbers (0 - 127) exists. Different MIDI devices may react differently to the same controller numbers.
To effectively control your FBQ2496, it is important to know which controller numbers can influence individual parameters.
( | ||||
0 | left | |||
10 | 1 | right | ||
2 | stereo (left and right) | |||
0 | Filters 1 thru 20 can be | |||
11 | ||||
selected individually | ||||
19 | ||||
0 | None, one or several (up to | |||
12 | ||||
20) filters can be selected | ||||
20 | ||||
0 | None, one or several (up to | |||
13 | ||||
20) filters can be selected | ||||
20 | ||||
0 | 20 Hz | logarithmic | ||
14 | allocation of | |||
(Coarse adjustment) | ||||
75 | 20 kHz | frequencies | ||
0 - 15 | ||||
16 - 31 | The previously set coarse | |||
32 - 47 | ||||
mid frequency (Controller 14) | ||||
48 - 63 | ||||
(Fine adjustment) | 46 | can be fine-tuned in 8 steps. | ||
64 - 79 | ||||
All digits of one step deliver | ||||
80 - 95 | ||||
the same frequency value. | ||||
96 - 111 | ||||
112 - 127 | ||||
0 | 1/60 octave | |||
' | 15 | |||
24 | 10 octaves | |||
0 | - 36 dB | |||
# | 16 | |||
81 | + 15 dB | |||
& | 17 | 0 | off | |
1 | on | |||
0 | off | |||
1 | 1 min | |||
% ' | ! % ' | 18 | 2 | 5 min |
3 | 10 min | |||
4 | 30 min | |||
5 | 60 min | |||
19 | 0 | off | ||
1 | on | |||
! | 20 | 0 | off | |
1 | on | |||
! | $ | 21 | 0 | off |
1 | on | |||
% | 22 | 0 | off | |
1 | on |
Table 7.1: FBQ2496 controller functions
FEEDBACK DESTROYER PRO FBQ2496
8.INSTALLATION
8.1Installation in a rack
The FBQ2496 requires one height unit (1 HE) for mounting in a 19' rack. Please keep in mind that an additional 10 cm (4') of depth in the back are required to enable trouble-free access to the connectors on the rear panel.
For rack installation, please use M6 machine screws and nuts.
Please make sure that your FBQ2496 has enough cooling air, and never put it on an amp or other heat-emitting equipment to avoid overheating.
8.2 Audio connections
The inputs and outputs on your FEEDBACK DESTROYER PRO are laid out completely balanced. Whenever possible, try to establish balanced connections to other equipment in order to maximize disturb signal compensation.
MIDI connections (IN/OUT/THRU) are established using the standard DIN connectors. Data transmission is achieved using a floating opto-coupler.
Fig. 8.1: 1/4' TRS connector
9. SPECIFICATIONS
Audio inputs | |
Connections | XLR and 1/4' TRS stereo connector |
Type | electronically balanced input |
Input impedance | approx. 20 kΩ balanced |
Nominal input level | -10 dBV / +4 dBu (adjustable) |
Max. input signal level | +20 dBu at +4 dBu nominal level, |
+6 dBV at -10 dBV nominal level | |
typically -40 dB | |
Audio outputs | |
Connections | XLR and 1/4' TRS stereo connector |
Type | balanced |
Output impedance | approx. 200 Ω balanced |
Max. output level | +20 dBu at +4 dBu nominal level, |
+6 dBV at -10 dBV nominal level | |
Bypass | |
Type | Relay, hard bypass in case of |
power outage | |
System information | |
Frequency response | <10 Hz to 44 kHz |
Dynamic range | 107 dB |
THD | 0.007 % typically @ +4 dBu, 1 kHz, |
amplification 1 | |
Crosstalk | < -100 dB @ 1 kHz |
MIDI interface | |
Type | 5-pole DIN connectors IN/OUT/THRU |
Digital processing | |
Converter | 24 Bit / 96 kHz |
Sample rate | 96 kHz |
Parametric equalizer (PEQ) | |
Type | max. 20 independent, fully |
parametric filters per channel | |
Frequency range | 20 Hz to 20 kHz |
Bandwidth | 1/60th to 10 octaves |
Possible value range | +15 to -36 dB |
Feedback Destroyer (FBQ) | |
Type | digital signal analysis for feedback |
recognition purposes | |
Filter | max. 20 digital notch filters per channel |
Frequency range | 20 Hz to 20 kHz |
Bandwidth | 1/60th octave |
Possible value range | 0 to -36 dB |
Display | |
Type | 3-digit numeric LED display |
POWER SUPPLY | |
Mains voltage | 100 - 240 V~, 50 - 60 Hz |
Power consumption | approx. 10 W |
Fuse | T 1 A H 250 V |
Mains connector | Standard receptacle |
DIMENSIONS/WEIGHT | |
Dimensions (H x W x D) | approx. 44.5 mm x 482.6 mm x 190.5 mm |
(approx. 1 ¾' x 19' x 7 ½') | |
Weight | approx. 1.9 kg (4.2 lbs) |
BEHRINGER is constantly striving to maintain the highest professional standards. As a result of these efforts, modifications may be made from time to time to existing products without prior notice. Specifications and appearance may differ from those listed or illustrated.
FEEDBACK DESTROYER PRO FBQ2496
10. WARRANTY
§1 OTHER WARRANTY RIGHTS AND NATIONAL LAW
1.This warranty does not exclude or limit the buyer’s statutory rights provided by national law, in particular, any such rights against the seller that arise from a legally effective purchase contract.
2.The warranty regulations mentioned herein are applicable unless they constitute an infringement of national warranty law.
§2 ONLINE REGISTRATION
Please do remember to register your new BEHRINGER equipment right after your purchase by visiting www.behringer.com (alternatively www.behringer.de) and kindly read the terms and conditions of our warranty carefully.
Registering your purchase and equipment with us helps us process your repair claims quicker and more efficiently.
Thank you for your cooperation!
§3 WARRANTY
1.BEHRINGER (BEHRINGER International GmbH including all BEHRINGER subsidiaries listed on the enclosed page, except BEHRINGER Japan) warrants the mechanical and electronic components of this product to be free of defects in material and workmanship for a period of one (1) year* from the original date of purchase, in accordance with the warranty regulations described below. If the product shows any defects within the specified warranty period that are not excluded from this warranty as described under § 5, BEHRINGER shall, at its discretion, either replace or repair the product using suitable new or reconditioned parts. In the case that other parts are used which constitute an improvement, BEHRINGER may, at its discretion, charge the customer for the additional cost of these parts.
2.If the warranty claim proves to be justified, the product will be returned to the user freight prepaid.
3.Warranty claims other than those indicated above are expressly excluded.
§4 RETURN AUTHORIZATION NUMBER
1. To obtain warranty service, the buyer (or his authorized dealer) must call BEHRINGER (see enclosed list) during normal business hours BEFORE returning the product. All inquiries must be accompanied by a description of the problem. BEHRINGER will then issue a return authorization number.
2.Subsequently, the product must be returned in its original shipping carton, together with the return authorization number to the address indicated by BEHRINGER.
3.Shipments without freight prepaid will not be accepted.
§5 WARRANTY REGULATIONS
1. Warranty services will be furnished only if the product is accompanied by a copy of the original retail dealer’s invoice. Any product deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced.
2.If the product needs to be modified or adapted in order to comply with applicable technical or safety standards on a national or local level, in any country which is not the country for which the product was originally developed and manufactured, this modification/adaptation shall not be considered a defect in materials or workmanship. The warranty does not cover any such modification/adaptation, irrespective of whether it was carried out properly or not. Under the terms of this warranty, BEHRINGER shall not be held responsible for any cost resulting from such a modification/adaptation.
3.Free inspections and maintenance/repair work are expressly excluded from this warranty, in particular, if caused by improper handling of the product by the user. This also applies to defects caused by normal wear and tear, in particular, of faders, crossfaders, potentiometers, keys/buttons, tubes, guitar strings, illuminants and similar parts.
4.Damages/defects caused by the following conditions are not covered by this warranty:
simproper handling, neglect or failure to operate the unit in compliance with the instructions given in BEHRINGER user or service manuals.
sconnection or operation of the unit in any way that does not comply with the technical or safety regulations applicable in the country where the product is used.
sdamages/defects caused by force majeure or any other condition that is beyond the control of BEHRINGER.
5.Any repair or opening of the unit carried out by unauthorized personnel (user included) will void the warranty.
Behringer Feedback Destroyer Pro Fbq2496
6.If an inspection of the product by BEHRINGER shows that the defect in question is not covered by the warranty, the inspection costs are payable by the customer.
Behringer Feedback Destroyer Manual
7.Products which do not meet the terms of this warranty will be repaired exclusively at the buyer’s expense. BEHRINGER will inform the buyer of any such circumstance. If the buyer fails to submit a written repair order within 6 weeks after notification, BEHRINGER will return the unit C.O.D. with a separate invoice for freight and packing. Such costs will also be invoiced separately when the buyer has sent in a written repair order.
Behringer Feedback Destroyer Pro Fbq2496 Setup
§ 6 WARRANTY TRANSFERABILITY
This warranty is extended exclusively to the original buyer (customer of retail dealer) and is not transferable to anyone who may subsequently purchase this product. No other person (retail dealer, etc.) shall be entitled to give any warranty promise on behalf of BEHRINGER.
§ 7 CLAIM FOR DAMAGES
Failure of BEHRINGER to provide proper warranty service shall not entitle the buyer to claim (consequential) damages. In no event shall the liability of BEHRINGER exceed the invoiced value of the product.
* Customers in the European Union please contact BEHRINGER Germany Support for further details.
Technical specifications and appearance subject to change without notice. The information contained herein is correct at the time of printing. The names of companies, institutions or publications pictured or mentioned and their respective logos are registered trademarks of their respective owners. Their use neither constitutes a claim of the trademarks by BEHRINGER® nor affiliation of the trademark owners with BEHRINGER®. BEHRINGER® accepts no liability for any loss which may be suffered by any person who relies either wholly or in part upon any description, photograph or statement contained herein. Colours and specification may vary slightly from product. Products are sold through our authorised dealers only. Distributors and dealers are not agents of BEHRINGER® and have absolutely no authority to bind BEHRINGER® by any express or implied undertaking or representation. No part of this manual may be reproduced or transmitted in any form or by any means, electronic or mechanical, including photocopying and recording of any kind, for any purpose, without the express written permission of BEHRINGER Spezielle Studiotechnik GmbH. BEHRINGER® is a registered trademark.
Behringer Feedback Destroyer Pro Manual
ALL RIGHTS RESERVED. © 2005 BEHRINGER Spezielle Studiotechnik GmbH,
Behringer Feedback Destroyer Setup
Hanns-Martin-Schleyer-Str. 36-38, 47877 Willich-Münchheide II, Germany.
Tel. +49 2154 9206 0, Fax +49 2154 9206 4903