User manual SABINE FBX1220

[. . . ] O pe r ati ng with SMARTFILTERS ContentS SECTION ONE -- FrONT & BaCk PaNElS 1. 1. FBX2420 Back Panel Controls & Connections SECTION TwO -- aPPlICaTIONS 2. 1. FBX Setup for Insert Send & Return SECTION THrEE -- ENGINEErING SPECIFICaTIONS SECTION FOUr -- OPEraTING INSTrUCTIONS 4. 1. How To Operate your FBX1220 / FBX2420 SECTION FIVE -- HOw TO USE FBX FEaTUrES 5. 1. [. . . ] During normaloperation, theblinkingwillmovefromfiltertofilteras theyarereset. Thisgivestheuseravisualconfirmationthat theunitisrespondingtonewfeedbackandisfunctioning properly. Sometimes during the initial setup, the first filter LED will blink before any feedback has been introduced into the system. TheFBXwillsetafilterifthesystemhasahum. Checkfor badgrounds. TryresettingthefilterswiththeunitinBypass. IfthevenueisnoisypresstheReadybuttononcebefore takingtheunitoutofBypass. ThentakeitoutofBypassand proceedwiththenormalinitiationprocedure. PlacetheFBXinBYPASSMODE. Ifthesystemstillsounds thin, yourproblemisprobablyimproperuseofagraphicEQ. IftheproblemisreallytheFBX, re-initializethesystemand makesuretheREADYbuttonLEDisonsteadily. MakesureyouarenotinSetupmode. Setupmodeturnsoff automaticallyafterthefirstdynamicfilterisset, oryoucan turnitoffmanuallybypressingtheREADYbutton. SeeSection5. 3. 3. forinformationonSetupmode. Yes;connecttheoutputofoneFBXchanneltotheinputof theotherchannel. PatchtheFBXbetweentheoutputofthe mixerandtheinputofapoweramp, andsetupthechannels sequentially. WhencombiningchannelAwithchannelBonan FBX2420, setallchannelAfiltersfofixed(seesection5. 2. 2) and bypass channel B. Follow normal setup procedure on channelA, andlockthefixedfilters(seesection4. 2). Then followthestandardsetupprocedurechannelB, whichshould haveafewdynamicfiltersavailable. Why doesn't the FBX1220 & FBX2420 Series filter feedback immediately?2. Checkinputlevelofsignalattheunitandsetgainsothe signallevelLED'sontheunitlightup. Itmaybepatchedinan"effectsloop", notdirectlyinthe signalpath. ThisWILLNOTWORK. © 2008 Sabine, Inc. 4. Youmayhaveusedall12filters. Dynamicfilterswillcontinuetooperatebynotchingfeedbackfrequenciesasthey occur, butultimately, gainwillexceedfiltercapacity. LIT-FBX1220-1224-OP-EN-080208. pmd - ks 7 SeCtIon SeVen -- FBX tHeorY & PraCtICe 7 . 1. Feedback is certainly the most pervasive challenge to the audio industry. The potential appearance of sudden, loud, out-of-control feedback is every sound engineer's and musician's nightmare. Unlike more subtle audio quality problems or shortcomings, feedback is embarrassingly obvious -- it disturbs the performer, the audience, and the technician, and can damage equipment and just generally ruin your day. Feedback is a potential problem in any amplified sound system that places a microphone or pickup in proximity to a loudspeaker. Poor acoustical conditions or misguided use by unsophisticated sound system operators only aggravate the situation. To make matters still worse, a non-Sabine variety of wireless microphone adds yet another level of feedback danger to the picture. Since feedback erupts whenever the distance, location, and gain relationships between a speaker and a microphone reach a critical combination, a mic that can move anywhere results in an ever changing potential for feedback. A step in the wrong direction may change a clear sound to a piercing shriek in less than a second. This enhanced potential for feedback with a wireless system gets worse if lavalier microphones are used. [. . . ] Thepowersupplygroundingpinisremovedorotherwisedefeated. Intheeventofadefect inmaterialand/orworkmanshipcoveredbythislimitedwarranty, Sabinewillrepairthedefect inmaterialorworkmanshiporreplacetheproduct, atSabine'soption;andprovided, however, that, inanycase, allcostsofshipping, ifnecessary, arepaidbyyou, thepurchaser. WARRANTYREGISTRATIONCARDSHOULDBECOMPLETEDANDRECEIVEDBYSABINE WITHINFOURTEEN(14)DAYSOFTHEDATEOFYOURPURCHASE. Inordertoobtainserviceunderthesewarranties, youmust: a. Bring the defective item to any Authorized SABINE DEALER and present therewith the ORIGINALPROOFOFPURCHASEsuppliedtoyoubytheAUTHORIZEDSABINEDEALER inconnectionwithyourpurchasefromhimofthisproduct. IftheDEALERisunabletoprovide thenecessarywarrantyservice, youwillbedirectedtothenearestotherSABINEAUTHORIZED DEALERwhichcanprovidesuchservice. OR b. Shipthedefectiveitem, prepaid, to: SAVINGS, ANYINCIDENTALDAMAGESORANYCONSEQUENTIALDAMAGESARISING OUT OFTHE USE OR INABILITYTO USETHE PRODUCT, EVEN IF SABINE HAS BEEN ADVISEDOFTHEPOSSIBILITYOFSUCHDAMAGES. THESELIMITEDWARRANTIESAREINLIEUOFANYANDALLWARRANTIES, EXPRESSOR IMPLIED, INCLUDINGBUTNOTLIMITEDTO, THEIMPLIEDWARRANTIESOFMERCHANTABILITYANDFITNESSFORAPARTICULARUSE;PROVIDED, HOWEVER, THATIFTHE OTHERTERMSANDCONDITIONSNECESSARYTOTHEEXISTENCEOFTHEEXPRESS LIMITEDWARRANTIES, ASHEREINABOVESTATED, HAVEBEENCOMPLIEDWITH, IMPLIED WARRANTIES ARE NOT DISCLAIMED DURING THE APPLICABLE ONE-YEAR PERIOD FROMDATEOFPURCHASEOFTHISPRODUCT. [. . . ]