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4-Channel Mic/Line Mixer with FireWire and DJ Features O W N E R ’ S M A N U A L LEVEL GAIN POWER HIGH 12kHz FREQ 1.5k 1.5k 80Hz FW IN PHONES LOOP LEVEL GAIN HIGH KILL KILL KILL KILL KILL KILL...
Important Safety Instructions 1. Read these instructions. 2. Keep these instructions. 3. Heed all warnings. 4. Follow all instructions. 5. Do not use this apparatus near water. 6. Clean only with a dry cloth. 7. Do not block any ventilation openings. Install in accordance with the manufacturer’s instructions.
18. CUE... 15 19. FADERS ... 15 Need help with your new U.420d mixer? • Visit www.mackie.com and click Support to find: FAQs, manuals, addendums, and user forums. • Email us at: techmail@mackie.com. • Telephone 1-800-898-3211 to speak with one of our splendid technical support representatives, (Monday through Friday, from 7 a.m.
Introduction Thank you for choosing a Mackie U.420d mixer. It con- tains all your favorite features in a ultra-compact mixer, along with a built-in FireWire interface, easy controls and a crossfader. The U.420d is equally at home in recording studio ap-...
Getting Started READ THIS PAGE!! Even if you never read manuals, please read and digest the safety instructions on page 2, and this page before you begin using your mixer. Zero the Controls Unplug the mixer’s external power supply from the mixer.
Little Rock at 3:30. The main outputs are fed to a pair of Mackie HR studio monitors for control room listening, and the mixer’s Big Knob controls their volume. The headphone output has its own level control, and each chan- nel has a cue switch independent of the Big Knob.
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1/4” plug whenever you want to play a record. The main outputs are fed to a pair of Mackie HR studio monitors for control room listening, and the mixer’s Big Knob controls their volume. The headphone out has its own level control independent of the Big Knob.
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4’s line input. The main outputs are fed to a pair of Mackie SRM450s and subwoofers for the audience’s listening pleasure. The mixer’s Big Knob controls their volume. Use the left aux send to connect to 4 SRM350s for stage monitoring.
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3 and 4’s phono inputs. The main outputs are fed to a pair of Mackie SRM450s for the audience’s listening pleasure. The mix- er’s mighty Big Knob controls their volume. Use the stereo aux send to connect 2-SRM350s for the booth.
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The main outputs are sent to the on-air feed, and/or to a pair of Mackie SRM450 speakers for location PA. (Typically, by a left/right split, i.e. the right channel connects to the on-air feed and the left channel goes to the first SRM450, then loops through to another SRM450) –...
Rear Panel Features POWER 18V,1.5A 1. MIC/LINE Input These Neutrik “combo” input connectors for channels 1 and 2 accept either balanced male XLR connectors, or 1/4" TRS balanced or TS unbalanced connectors. • If you are using a microphone, use the XLR input.
POWER 18V,1.5A 5. AUX Outputs These 1/4" TRS outputs provide stereo line-level output signals from the aux bus. You can connect these outputs to the inputs of an external effects processor, another PA system, or stage monitors. You can also use unbalanced 1/4"...
8. DC Input This DC input connector is used to supply power to the mixer. Connect the supplied external power supply here, and plug the other end of the power supply into the AC mains. The power LED [28] will joyfully illumi- nate, indicating that the mixer is powered on, and ready for action.
Top Panel Features 1.5k Channel 1 and 2 controls Channel 1 and 2 are mono channels, fed by the combo input connectors [1]. The controls are mono, but the final output of each channel is split equally and added to the left and right main mix. 10.
3-BAND EQ The mono channels have 3-band equalization at carefully selected points — low shelving at 80 Hz, mid peaking at a variable frequency from 100 Hz to 8 kHz, and high shelving at 12 kHz. “Shelving” means that the circuitry boosts or cuts all frequencies past the specified frequency.
Channel 3 and 4 controls Channel 2 and 3 are identical stereo channels, fed by the line-level input connectors [2] or the phono-level inputs [3]. The controls are stereo, and the final output of each channel is added to the left and right main mix. These channels are set up with a crossfader, ideal for DJ work with two turntables.
24. AUX These stereo controls allow you to adjust how much of the channel signal is added to the aux bus. The aux bus contains the sum of all channels whose aux controls [24, or 17] are set to more than minimum. The aux bus feeds the aux outputs [5], typically out to an external processor.
POWER FW IN PHONES LOOP Control Section 28. POWER LED This will light whenever the external power supply is connected to the mixer and is supplying the correct DC voltage. The mixer does not have a power switch, so as long as the external power supply is connected and operating, the mixer is powered up and this LED should be on.
34. FW LOOP OUT In addition to a mix of channels 1 to 4, the FireWire output to the computer can contain the FireWire input signal, if this switch is down. The mains and phones are not affected by the switch, and always provide a full mix of channels 1 to 4 and the 2-channel FireWire inputs.
Visit the support section of our website (www.mackie.com/support) where you will find lots of useful information such as FAQs, documentation, and user forums. You may find the answer to the prob- lem without having to send your U.420d away.
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“Support” and select “Locate a Service Center.” Service for Mackie products living outside the United States can be obtained through local dealers or distributors. If you do not have access to our website, you can call...
Appendix B: Connections XLR Connectors The mixer’s combo inputs accept 3-pin male XLR con- nectors. These are wired as follows, according to stan- dards specified by the AES (Audio Engineering Society). XLR Balanced Wiring: Pin 1 = Shield Pin 2 = Hot (+) Pin 3 = Cold (–) 1/4"...
Therefore, we reserve the right to change these specifications at any time without notice. “Mackie,” and the “Running Man” are registered trademarks of LOUD Technologies Inc. All other brand names mentioned are trademarks or registered trademarks of their respective holders, and are hereby acknowledged.
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MAIN U.420d 4-Channel Mic/Line Mixer MAIN...
Appendix D: FireWire System Requirements These are the minimum requirements for your com- puter system to use the U.420d FireWire interface. For the PC: • Windows XP (service pack 2) • Pentium 4 or Athlon XP processor • 256 MB RAM For the Mac: •...
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Recording with FireWire The U.420d’s built-in FireWire connection allows overdub style recording to a Mac or PC digital audio workstation (DAW) through the FireWire cable. Here are some steps showing how to record a first track, and then record additional tracks while monitor- ing ones that have already been recorded.
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* In Tracktion, it is not necessary to mute the output of the track you are overdubbing on. Instead, select the input to the track (it will be highlighted in red) and dis- able the end-to-end function. You’ll hear existing tracks playing back via the FireWire in, and you’ll be monitoring the track you are recording through the U.420d’s headphones or main out.
Software installation For the PC: When using the mixer with a PC, it is necessary to first install the drivers and the control panel. The con- trol panel allows you to set the sample rate and adjust the latency of the audio passing through the mixer’s FireWire interface.
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9. Wait until the “Found New Hardware Wizard” pops up. Do not select any options, just click “Cancel” to continue. If the same screen comes back up, click “Cancel” again. Do not worry about the various popup warnings, even the one that says “a problem occurred..” Pay no attention to the man behind the curtain.
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For the Mac: Macintosh OS X Audio MIDI Setup (version 10.3.9 or later): Macintosh OS X does not require FireWire drivers to be installed. OS X provides a dedicated setup utility for audio and MIDI. You can use the Audio MIDI Setup utility to change the default audio input and output and general system settings on your Macintosh.
To obtain repairs or replacement under warranty, you must have a copy of your sales receipt from the authorized Mackie dealer where you purchased the product. It is necessary to establish purchase date and determine whether your Mackie product is within the warranty period.
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