User Manual FEEDBACK DESTROYER FBQ1000 Automatic and Ultra-Fast Feedback Destroyer/Parametric EQ with 24 FBQ Filters
FEEDBACK DESTROYER FBQ1000 User Manual Table of Contents Thank you........................................................................ 2 Important Safety Instructions....................................... 3 Legal Disclaimer.............................................................. 3 Limited warranty............................................................. 3 1. Introduction................................................................ 4 2. Applications......................................
FEEDBACK DESTROYER FBQ1000 User Manual Important Safety Instructions Terminals marked with this symbol carry electrical current of sufficient magnitude to constitute risk of electric shock. Use only high-quality professional speaker cables with ¼" TS or twist-locking plugs pre-installed. All other installation or modification should be performed only by qualified personnel.
FEEDBACK DESTROYER FBQ1000 User Manual 1. Introduction 1.3 Background: How is feedback produced? 1.1 The design concept A feedback loop is produced when a microphone signal is reproduced by an amplification system and is subsequently picked up again (with identical phase) by the microphone. If this happens repeatedly, such a feedback loop can become ever more persistent. The philosophy behind BEHRINGER products guarantees a no-compromise circuit design and employs the best choice of components.
FEEDBACK DESTROYER FBQ1000 User Manual 2. Applications The FBQ1000 is used exclusively to eliminate feedback in FOH and monitor mixes. ◊ If possible, all monitor paths should be set pre-fader, as this leaves the monitor mix unaffected from any changes made to the FOH mix.
FEEDBACK DESTROYER FBQ1000 User Manual Ideally, your mixer has sub-groups with dedicated insert points to connect the FBQ1000! Route all channels that are susceptible to feedback (e.g. all vocal mics) to one sub-group. While the other signals (e.g. line level signals, low-level instrumental mics) pass unaffected, all critical microphone channels are monitored by the FBQ1000.
FEEDBACK DESTROYER FBQ1000 User Manual (5) With the JOG WHEEL, a continuous rotary control, you can freely edit the selected parameters. Turn the wheel clockwise to increase the values, or counterclockwise to reduce them. (22) (21) (20) (19) (17) (18) (6) With the FILTER SELECT key activated, you can use the Jog Wheel to select one of the 12 filters per channel. Subsequently, you can edit the filters.
FEEDBACK DESTROYER FBQ1000 User Manual The three remaining filters (all set to Auto mode “AU”, see chapter 6.3) are used to detect and suppress new feedback frequencies, which can be produced, e.g. when the singer moves around the stage with the vocal mic in his/her hand. Since the FBQ1000 can by no means “know” whether or not the risk of feedback has been eliminated (e.g.
FEEDBACK DESTROYER FBQ1000 User Manual 7.1 Recalling presets 7.3 Editing filter parameters The FEEDBACK DESTROYER has ten presets, which can be overwritten. After power-up, the unit restores the last preset used. Use the JOG WHEEL to select another preset. The default preset is located before the first program.
FEEDBACK DESTROYER FBQ1000 User Manual 8. Problems Do Have A Cause ... Feedback is one of the major problems encountered in live P.A. applications. In a worst-case scenario every microphone signal passing an amplifier can cause feedback.
FEEDBACK DESTROYER FBQ1000 User Manual 10. Installation 10.1 Audio connections As a standard, the audio inputs and outputs on the BEHRINGER FEEDBACK DESTROYER are fully balanced. If possible, connect the unit to other devices in a balanced configuration to allow for maximum interference immunity.
FEEDBACK DESTROYER FBQ1000 User Manual 11. Appendix 11.
FEEDBACK DESTROYER FBQ1000 User Manual 11.
FEEDBACK DESTROYER FBQ1000 User Manual 11.3 MIDI implementation Function Basic Channel Mode Note Number Velocity After Touch Default Changed Default Messages Altered True Voice Note ON Note OFF Key's Ch's Pitch Bender Control Progr.
FEEDBACK DESTROYER FBQ1000 User Manual 12. Specifications Audio Inputs Power Supply Connectors XLR and ¼" TRS Type RF-filtered, servo-balanced input USA/Canada 120 V~, 60 Hz (T 200 mA L, 250 V) Impedance 60 kΩ balanced, 30 kΩ unbalanced U.K./Australia 240 V~, 50 Hz (T 100 mA L, 250 V) Nominal operating level -10 dBV to +4 dBu (switchable) Europe 230 V~, 50 Hz (T 100 mA L, 250 V) Max.
FEEDBACK DESTROYER FBQ1000 User Manual FEDERAL COMMUNICATIONS COMMISSION COMPLIANCE INFORMATION FEEDBACK DESTROYER FBQ1000 Responsible Party Name: MUSIC Group Services US Inc. Address: 18912 North Creek Parkway, Suite 200 Bothell, WA 98011, USA Phone/Fax No.
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