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SW0581 Rev. E 04/09 ©2004-2009 LOUD Technologies Inc. All Rights Reserved. Operation Guide » Operation Guide BIG KNOB Introduction Thank you for choosing the Mackie Big Knob, your signal routing and monitoring solution for your DAW-based studio. Big Knob provides a control room matrix and the basic features of an expensive mixer, but tailored for the requirements of your DAW (Digital Audio Workstation) environment. These features include selecting up to four separate stereo input sources, monitoring through three different speakers for A/B/C comparisons, providing a separate headphone mix and a studio output for the talent, and a built-in talkback mic for slate-to-tape and headphone cueing. In other words, it gives you everything you need from a mixer, without the stuff you don’t need! Another important feature you’ve come to expect from Mackie is pristine sound quality, and Big Knob is no exception. This is studio-quality gear, and we made sure the audio signal suffers no degradation by passing through Big Knob. You can connect this baby between your expensive DAW and your really expensive studio monitors with no reservations. Big Knob will pass the test! Big Knob is part of the growing family of Mackie computer recording products. Visit our website (to learn more about these products and the solutions to your audio and recording needs that Mackie has to offer, or pick up a catalog at your nearest Mackie dealer. (?) INPUT OOLO 0 8 0 O 0 O O 4 O 0 8 0 O 24 O <•> INPUT SOURCE SELECT m m as m DAW 2-TRACK 2-TRACK PHONO MIX A B -STUDIO OUTS PHONES/ STUDIO OUTS SOURCE m he BIG KNOB STUDIO COMMAND SYSTEM MONITOR SELECT @ © © as as ABC ® ® 2-TRACKS PHONES/ STUDIO (• Getting Started The following steps will help you set up your Big Knob and get the levels adjusted correctly. Once you have made the connections and adjustments, refer to the Features section for more in-depth information about each input, output, switch, and control knob. Zero the Controls i. 2. 3. Turn off the POWER switch © on the rear panel. On the front panel, turn the Big VOLUME Knob and all the LEVEL controls all the way down (counterclockwise). Most of the inputs and outputs on Big Knob have either a trim control or a level switch labeled -10 dB and +4 dB. This actually 4. comes from two standard operating levels that have evolved in the audio industry: _-10 dBV consumer level and +4 dBu pro- ^ fessional level. Most consumer equipment with RCA Connections connectors operate at the -10 dBV level, while most professional equipment with 1/4-inch phone jacks or XLR connectors operate at the +4 dBu level. As you might expect, the +4 dBu level is higher (louder) than the -10 dBV level, so it is important to match the input and output levels of Big Knob to the equipment you have connected to it. For a Big Knob input, the -10 dB setting accepts a smaller signal and provides more gain than the +4 dB setting. For 2. a Big Knob output, the -10 dB setting produces a smaller signal than the +4 dB setting. Set all the switches to the up position (front and rear panels). On the rear panel, turn all the trim controls all the way down (counterclockwise). 1. Connect the supplied detachable power cord to the AC socket © on the rear panel of Big Knob. Set the AC SELECT switch 0 to the correct position that corresponds to the AC voltage you are using (100-120V or 220-240V). For Monitoring: 4 Connect the audio outputs (stereo mix) from your DAW’s audio interface to the two DAW MIX © input jacks on the rear panel of Big Knob. BIG KNOB 3. Connect the MONITOR A output jacks on the rear panel of Big Knob to a pair of active studio monitors (or the inputs of an amplifier that is powering a pair of passive studio monitors). These will be located at your mixing position. If you know whether the inputs to the active studio monitors (or amplifier) accept a -10 dBV (consumer) or +4 dBu input level, set the trim control© above the MONITOR A output jacks to the appropriate position. Otherwise, leave it at the -10 dBV position for now. You can connect additional speakers to the MONITOR B © and MONITOR ¿©output jacks so you can hear your mix through different types of speakers. 4. If you have a separate studio for recording, connect the STUDIO OUTS © to a pair of active studio monitors (or the inputs of an amplifier that is powering a pair of passive studio monitors). These will be located in studio for the talent. Set the trim control © above the STUDIO OUTS output jacks to the appropriate position, or leave it at the -10 dBV position if you’re not sure. 5. If you have a headphone distribution amplifier for monitoring while recording, connect the PHONES AMP output jacks to the inputs of the headphone amp. Set the +4/-10 level switch© above the PHONES AMP output jacks to the appropriate position, or leave it at the -10 position (pushed in) if you’re not sure. For Recording 6. Connect the 2-TRACK A outputs to ...