User manual SABINE FBX2020-PLUS

[. . . ] Operating Guide INSIDE THIS GUIDE: About the FBX2020-Plus FBX2020-Plus Controls Applications Understanding Fixed & Dynamic Filters Operating Instructions Troubleshooting Tips Product Specifications Block Diagram Cautions & Warranty Compliance Information 1-2 3 4-5 6 6-8 8 9 9 10 11 CONGRATULATIONS!You now have the state-of-the-art in feedback control. Your Sabine FBX2020-Plus Dual Feedback Exterminator, a dual-channel, 20-bit digital filtering device that gives you automatic real-time feedback control and increases the clarity and volume of your system. The FBX2020-Plus incorporates the latest in digital signal processing technology. [. . . ] The FBX will quickly remove the feedback. The first FILTER LED will then blink to indicate a filter has been set. Repeat this procedure until all of the FIXED FILTERS and one of the DYNAMIC FILTERS are set. TURBO setup mode goes off automatically. Important Operating Considerations Memory: The FBX stores the positions and depths of the filters in nonvolatile internal memory when the unit is turned off or during a power failure. The unit will return all filters to their previous frequencies and depths when it is turned back on. Bypass Mode: The FBX has a true power-off bypass. The signal is unaffected in BYPASS MODE even if the unit is turned off. Please note that if a combination of BALANCED and UNBALANCED inputs and outputs is used, the signal may be disconnected or attenuated in BYPASS MODE. Resetting the filters: You must reset the FBX if the microphones or speakers are moved significantly. To reset the unit, place the PA system's master volume to minimum and then press the reset button until all the FILTER LEDs stop flashing. Then follow the system initialization procedure explained previously. Or you can reset only the Dynamic filters by pressing and releasing the reset button after the Dynamic filter LEDs stop flashing. This may be useful in certain situations, for example, after extensive wireless microphone use. FBX2020P-OpGuide-031104. pmd - hto 7 TURBO MODE SETUP The FBX2020-Plus incorporates TURBO mode setup, which is indicated by a flashing red "CLIP" LED. This lightning-quick setup feature cuts the time for FBX filter initialization to just a few seconds, and it reduces the volume level of the feedback during setup. The 2020Plus is set in TURBO mode at the factory and automatically engages every time you press RESET (resetting filters). The 2020Plus automatically returns to normal program mode when the first dynamic filter is set or when you press the front panel LOCK FIXED button. ALL FILTER LEDS WILL CYCLE TO INDICATE THE FBX IS ABOUT TO EXIT TURBO MODE. TROUBLESHOOTING TIPS Q. Can I place the FBX in the mixer's EQ loop?Can I place the unit in the mixer effects loop?You can configure the system this way only if each effects send of each mixer channel is set so that all of the signal is routed completely through the effects loop. You cannot mix dry signal with effects signal and still control feedback. Be sure that the program is interrupted when the input is disconnected from the back of the unit. [. . . ] The FBX2020-Plus is supplied with one of the following AC power cords: Japan 100 VAC U. S. /North America 120 VAC Continental Europe 230 VAC United Kingdom 240 VAC Australia 240 VAC Caution! Replace the fuse with a fuse of exactly the same rating specified on the rear of the product. Read all safety and operating instructions before using this product. All safety and operating instructions should be retained for future reference. Obey all cautions in the operating instructions and on the unit. All operating instructions should be followed. [. . . ]