User manual MACKIE BIGK NOB

[. . . ] OperationGuide INPUT OL 8 0 4 8 24 0 = +4dBu INPUT SOURCE SELECT MIC POWER MONITOR SELECT DAW MIX 2-TRACK A 2-TRACK B PHONO A B TALKBACK C PHONES 1 O O STUDIO OUTS PHONES/ STUDIO OUTS SOURCE MAX O O VOLUME MAX MONO INPUT SOURCE(S) PHONES MIX INPUT OFF ON O O DIM MUTE O O MAX 2 O O MAX LEVEL LEVEL TO 2-TRACKS MAX TO PHONES/ STUDIO STUDIOCOMMANDSYSTEM BIG KNOB ImportantSafetyInstructions 1. Donotblockanyventilationopenings. Installinaccordancewiththe manufacturer'sinstructions. Donotinstallnearanyheatsourcessuchasradiators, heatregisters, stoves, orotherapparatus(includingamplifiers)thatproduceheat. Donotdefeatthesafetypurposeofthepolarizedorgrounding-type plug. Apolarizedplughastwobladeswithonewiderthantheother. [. . . ] Many DAW applications provide at least four outputs through their associated I/O hardware. Two outputs can provide the main mix, which is connected to the DAW MIX INPUTs on Big Knob and selected for monitoring with the DAW MIX INPUT SOURCE SELECT button. The engineer can create a separate headphone mix for the talent in the DAW application by using a stereo aux send routed to another pair of outputs, which is connected to the DAW PHONES MIX INPUT on Big Knob and routed to the STUDIO/ PHONES outputs with the PHONES/STUDIO OUT SOURCE button. STUDIO OUTS ON/OFF This button turns the signal path on and off going to the STUDIO OUTS jacks on the rear panel. When the button is pushed in (ON), the red LED above the button lights and the signal appears at the STUDIO OUTS. STUDIO OUTS LEVEL Control This controls the level at the STUDIO OUTS the rear panel. TALKBACK LEVEL This knob controls the level of the preamp for the internal omni-directional talkback mic, as it is routed either to the DAW and 2-TRACK A and B outputs (when the TO 2-TRACKS button is pressed) or to the PHONES/STUDIO bus (when the TO PHONES/STUDIO button is pressed). The gain of the TALKBACK LEVEL control ranges from Off () to +10 dB when turned all the way up. Internal Talkback MIC This omni-directional microphone is located right in Big Knob's front panel, just to the left of the Big VOLUME Knob. The microphone is activated when one of the two TALKBACK assign buttons is pressed. on TO 2-TRACKS Pressing this momentary button illuminates the red LED above it, activates the internal talkback MIC, and sends its signal to the: · 2-TRACK A output connectors · 2-TRACK B output connectors · DAW output connectors TO PHONES/STUDIO Pressing this momentary button illuminates the red LED above the button, activates the internal talkback MIC, and sends its signal to the: · PHONES 1 and 2 headphone outputs on the front panel · PHONES AMP outputs on the rear panel · STUDIO OUTS on the rear panel The TALKBACK TO PHONES/STUDIO button routes the talkback signal to all of these outputs no matter how the PHONES/STUDIO OUTS SOURCE selector button is set. This means that all the headphones and studio outputs will hear the talkback signal whether they are getting program material from the INPUT SOURCE(S) or the PHONES MIX INPUT . Unlike all of the other buttons, the TALKBACK TO PHONES/STUDIO and TALKBACK TO 2-TRACKS buttons are momentary, and only activate the talkback mic as long as they are physically pressed. Note: Both talkback buttons can be pressed at the same time to route the talkback mic to the 2TRACK outputs and the PHONES/STUDIO outputs. If the TALKBACK FOOTSWITCH jack on the rear panel is activated by an external footswitch, it is the equivalent of pressing both talkback buttons at once. Operation Guide RearPanel SOURCES The following section describes the connectors that are used for various sources feeding into Big Knob. 2-TRACK A Inputs These stereo 1/4-inch balanced/unbalanced inputs are fed by the outputs of the first external 2-track recorder. If a mono signal is plugged into the LEFT input only, it is automatically routed to both LEFT and RIGHT inputs. SOURCES 2-TRACK A U +4dB -10dB POWER ON MONITOR A MONITOR B MONITOR C 2-TRACK OUTPUTS B A 2-TRACK DAW OUTPUT PHONES AMP STUDIO DAW PHONES MIX INPUT L (MONO) 2-TRACK B R U +4dB -10dB L (MONO) R -10dB +4dB -10dB +4dB -10dB +4dB +4dB L L L L -10dB +4dB L -10dB +4dB L -10dB +4dB L -10dB -10dB +4dB +4dB L L -10dB -10dB +10dB BAL/ UNBAL -10dB +10dB BAL/ UNBAL GROUND AC SELECT 220-240V 100-120V DAW MIX R R R R R R R R R U -10dB +4dB PHONO R U L (MONO) L R TALK BACK FOOT SWITCH -10dB +10dB BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/UNBAL BAL/ UNBAL -10dB +10dB RIAA OperationGuide 9 BIG KNOB 2-TRACK A Level Switch This two-position switch sets the input level of the 2-TRACK A inputs to either +4 dB (balanced input) or ­10 dB (unbalanced input). Use the +4 dB setting for professional equipment operating at the +4 dBu standard, and use the ­10 dB setting for consumer equipment operating at the ­10 dBV standard. 2-TRACK A Trim Control This control adjusts the input sensitivity of the incoming 2-TRACK A signal by ±10 dB (unity at center detent). This allows for precise level matching between the various incoming 2-track sources, which often do not have output level controls of their own. 2-TRACK B Inputs These stereo 1/4-inch balanced/unbalanced inputs are fed by the outputs of the second external 2-track recorder. If a mono signal is plugged into the LEFT input only, it is automatically routed to both LEFT and RIGHT inputs. [. . . ] Tech Support will tell you where the nearest factory-authorized service center is located in your area. NeedHelp?Youcanreachatechnicalsupportrepresentative MondaythroughFriday normalbusinesshours, PSTat: 1-800-898-11 Afterhours, visitwww. mackie. comandclickSupport, oremailusat:techmail@mackie. com 14 BIGKNOB AppendixB:Connections 1/4"TRSPhonePlugsandJacks "TRS" stands for Tip-Ring-Sleeve, the three connection points available on a stereo 1/4" or balanced phone jack or plug. TRS jacks and plugs are used for balanced signals and stereo headphones: Operation Guide 1/4"TSPhonePlugsandJacks "TS" stands for Tip-Sleeve, the two connection points available on a mono 1/4" phone jack or plug. They are used for unbalanced signals. SLEEVE SLEEVE TIP BalancedMono RING SLEEVE SLEEVE RING TIP TIP RING TIP SLEEVE TIP TIP SLEEVE 1/4" TS Unbalanced Wiring: Sleeve = Shield Tip = Hot (+) 1/4" TRS Balanced Mono Wiring: Sleeve = Shield Tip = Hot (+) Ring = Cold (­) RCAPlugsandJacks SLEEVE RING TIP StereoHeadphones RING SLEEVE TIP RING TIP SLEEVE RCA-type plugs (also known as phono plugs) and jacks are often used in home stereo and video equipment and in many other applications. [. . . ]