User manual SABINE FBX-900

[. . . ] More detailed instructions are on page 7 inside this operating guide. 1. Place the FBX between the output of your mixer and the input of your power amp. With the master volume down, put the FBX-900 in active mode (red BYPASS LED off), then slowly raise the mixer master volume to the point of feedback. Keep raising the master volume until all of your fixed filters and one dynamic filter are set, then lower the volume slightly. [. . . ] If you have an especially bad feedback problem, try making the first few filters 1/5-octave and the remaining filters 1/10-octave. How do I know TURBO is on?How do I turn off TURBO? Can the 2020 work during the program with TURBO on?Why won't all the fixed filters set? NOTE: If you press LOCK FIXED to turn off TURBO mode before all the fixed filters have been set, and you want to use the rest of the fixed filters, press LOCK FIXED again right away -- before a dynamic filter sets. Once a dynamic filter sets, you will not be able to use the rest of the fixed filters unless you reset and reinitialize the unit. WARNING: Follow the setup procedure outlined on the left, and do not play audio program during TURBO setup mode. (Clip level is set to the lowest level so the feedback clips quickly; therefore, your program will also be clipped in TURBO mode. Be sure a dynamic filter is set, and if one isn't, press the LOCK FIXED button before your program begins. Press LOCK FIXED again if you want FIXED filters to remain active. ) You'll know the 2020 is in TURBO mode if the red CLIP LED flashes when no other signal level LEDs are on. (See "How do I turn off Turbo?" in the ClipGuard TURBO Mode Guide above. ) NOTE: Any loud sounds picked up by open microphones while TURBO is engaged may cause FBX filters to set. For this reason we recommend maintaining silence as much as possible during the short time TURBO is engaged. If your venue is too noisy to take advantage of TURBO mode, turn off TURBO by pressing LOCK FIXED on, then off before you initialize for feedback. One method of setting FBX filters with mobile microphones is to turn a microphone on and walk around to the various possible microphone locations. At the same time, raise the system gain and set the FBX filters one at a time. In some situations, raising the number of dynamic filters (versus fixed FBX filters) may allow a second layer of defense against new feedback from new locations. However, in many mobile microphone set ups, fixed FBX filters will protect against feedback across the range of microphone mobility. 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 in BYPASS MODE. Resetting the filters The user 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 the LEDs flash about 4 seconds -- and the FILTER LEDs stop flashing. Then follow the system initialization procedure explained previously. TURBO Mode Setup The FBX-900 incorporates TURBO mode setup, which is indicated by a flashing red "CLIP" LED. 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. [. . . ] ("SABINE") warrants this product to be free from defects in material and workmanship for a period of one (1) year from date of purchase PROVIDED, however, that this limited warranty is extended only to the original retail purchaser and is subject to the conditions, exclusions and limitations hereinafter set forth: CONDITIONS, EXCLUSIONS AND LIMITATIONS OF LIMITED WARRANTIES These limited warranties shall be void and of no effect if: a. The original retail purchase is not made from an AUTHORIZED SABINE DEALER; or c. The product has been damaged by accident or unreasonable use, neglect, improper service or maintenance, or other causes not arising out of defects in material or workmanship; or d. The serial number affixed to the product is altered, defaced or removed; or e. [. . . ]