ElectroVoice-BK1642-mix-电气原理图手册

EY BK SERIES STEREO MIXEROutput Section ControlsSECTION 2.02G.REVERB SECTIONReverberation is the natural decay of sound in a2.0 OUTPUT SECTION CONTROLS (Figure 2)closed space (a room).The internal reverb systemuses springs to realistically simulate this effect.2A.EFX SENDThe reverb section gets its input signal from theEFX/REVERB send controls on the input channelsThe EFX(effects)SEND control sets the level of the(sec.1C).signal appearing at the effects send output jack(sec.4E)going to any type of outboard effects1.REV LEVELdevice(s)such as delay,phase.flanger.etc.It doesThe REV(reverb)LEVEL control adds rever-not affect the signal being sent to the internal reverbberation to the left and right sub channels fromsystem.The source for this signal is via theany input channel signal whose EFX/REVindividual effects/reverb send level controlscontrol is turned up(sec.1C)on input channels 1 through 16.Turning the control to the right increases theamount of reverb present in the left and right2B.EFX RETURNsub outputs.The EFX RETURN level control determines the2.REV PANamount of externally generated effects signals inThe REV (reverb)PAN control directs signalthe main mix.This signal is mixed into the left andfrom the REV LEVEL control to left or right subright stereo sub channels via the EFX PAN controlbus.The control works in an identical manner(sec.2C)to the input PAN control.3.REV TO MON2C.EFX PANThe REV(reverb)to MON (monitor)controlThe EFX PAN control directs the signal comingadjusts the level of the signal from the internalfrom the effects return level control into the leftreverb to the monitor bus.Turn the controland/or right sub channels.The control works in anclockwise to increase the reverb level at theidentical way to the input channel PAN control.monitor bus.2H.MASTER SECTION CONTROLS2D.AUX SENDThe master section controls affect the subgroup.The AUX(auxiliary)SEND control sets the level ofmain,and monitor output levels.the signal appearing at the AUX SEND output jackThe use of subgroups can be demonstrated by this(sec.4F)to any outboard device.The PRE-POSTexample:If the input channel PAN controls are setselect switch on the channel input will allow you tofully clockwise for all the vocal microphones,thendetermine if you want the outboard device to bewe will have assigned the SUB R slider as a"'vocalaffected by the channel equalization and fader.Insubmaster''.If we raise or lower the SUB R controlthe "'PRE"position,the AUX SEND signal is notwe can set the proper vocal level in the mix whileaffected by the channel EQ and fader.In thepreserving the input channel balance set among"POST"'position,the AUX SEND signal is affectedthe vocalistsby the channel EQ and fader.1.LEFT SUBMASTER2E.AUX RETURNControls the volume of the left stereo outputchannel.It is also used as a subgroup master.The AUX (auxiliary)RETURN control sets the level2.RIGHT SUBMASTERof the input signal that is directed to the left andright sub channels through the AUX PAN controlContr