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Mackie U.420 manual

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Table of contents for the manual

  • Page 1

    OWNER’S MANUAL 4-Channel Line Mixer with F ireWir e O O MA X +14 -1 4 +1 4 -14 MID LOW HIGH EQ GAI N LEVEL U U U U U U U U U O O MA X 1 2 3 4 U O O MA X LEVEL U O O MA X U +14 -1 4 U +14 -1 4 MID LOW HIGH EQ GAI N +1 0 KI LL U +1 0 KI LL U U U +1 0 KI LL U +1 0 KI LL U +1 0 KI LL U +1 0 KI LL +1 0 KI LL + 10 KI LL +1 0 KI LL + 10 KI LL +1 0 KI LL[...]

  • Page 2

     U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er 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. [...]

  • Page 3

    Part No. SW0556 Rev . D 02/08 ©2007-2008 LOUD T echnologies Inc. All Rights Reserved.  Owner’ s Manual Owner’ s Manual N e e d h e lp w it h y ou r ne w U . 4  0 Mi x e r ? • V i s it w ww . m a ck ie .c o m a nd c li ck S up po rt t o  n d: F A Q s , ma nu al s, a dd en du ms , an d us er f o r u ms . • E m a il u s a t : t ec hm[...]

  • Page 4

    4 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er Introduction Thank you for choosing a Mackie U.420 mixer . It contains all your favorite features in a ultra-compact 4-channel line mixer , along with a built-in Fir eWir e interface, and a phono input for turntablists. The U.420 is equally at home in recording studio ap- plications or [...]

  • Page 5

    5 Owner’ s Manual Owner’ s Manual Getting Started READ THIS P AGE!! 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 1. Unplug the mixer’s external power supply from the mixer . 2. T urn down all the gain, aux, and level controls, and [...]

  • Page 6

     U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er Hookup Diagrams Production studio This diagram shows a stereo synth, and a drum machine connected to channels 1 & 2, and a turntable connected to the phono inputs of channel 4. The stereo aux output sends signals to the effects/sampler , and the wet signal is returned into channel[...]

  • Page 7

    7 Owner’ s Manual Owner’ s Manual Live perf or mance system This diagram shows a guitar connected to channel 1, plus a stereo synth and drum machine connected to channels 2 & 3. A turntable is connected to the phono inputs on channel 4. Use the left aux send to connect to a Mackie SRM450 for stage monitoring. The U.420 will automatically su[...]

  • Page 8

    8 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er K eyboardist’s submix er GND PHONO R 1 2 3 4 R L POWER 18V,1. 5A OUT MAIN OUT AUX (MONO) R L (MONO) L R L (MONO) L (MONO) L R R M a i n M i x t o f r o n t - o f - ho u s e m i x e r P e r s o n a l S te r eo M o n i to r s ( S R M 1 5 0 p ow e r e d m o n i t o rs ) La pto p Or g an [...]

  • Page 9

    9 Owner’ s Manual Owner’ s Manual V ideo edit bay GND PHONO R 1 2 3 4 R L POWE R 18V,1 .5A OUT MAIN OUT AUX (MONO) R L (MONO) L R L (MONO) L (MONO) L R R D es k t o p c o m p u t er a n d l a r g e di s p l ay H e a d p ho n e s V i de o o u t V i de o o u t D i gi t a l V i d eo C a mc o r d e r D V R e c o r d er 2 V i de o M o n i to r D V R[...]

  • Page 10

    10 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er Rear Panel Features 1 . I N S T R UM E N T / L I N E I np u t These inputs accept either 1/4" TRS balanced or TS unbalanced connectors. Unlike the other inputs, channel 1’s left input can accept direct instrument-level signals such as from guitars, without the need for a DI box.[...]

  • Page 11

    11 Owner’ s Manual Owner’ s Manual If you plug a cable into the left aux output jack, and leave the right output jack empty , the right and left signals are summed together to provide a mono output. The stereo aux output from these connectors is the sum of all channels whose aux level controls [16] are set to more than minimum. The aux bus give[...]

  • Page 12

    1 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er T op Panel Features Channel Controls 1 0 . L E V EL S ET L ED These LEDs are used with the gain control [12] to set the level of the channel’s pr eamplifier gain just right. They light when the signal level is 0 dBu. Adjust the gain control so these LEDs come on while you are play[...]

  • Page 13

    1 Owner’ s Manual Owner’ s Manual  - B A N D E Q The U.420 has 3-band equalization at carefully selected points — low shelving at 300 Hz, mid peaking at 1 kHz, and high shelving at 4 kHz. “Shelving” means that the circuitry boosts or cuts all frequencies past the specified fr equency . For example, rotating the low EQ knob clockwis[...]

  • Page 14

    14 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er Control Section 1 8 . P O WE R LE D This will light whenever the external power supply is connected to the mixer and to a live AC mains supply . The mixer does not have a power switch, so as long as the external power supply is connected and operating, this LED should be on. 1 9 . M E [...]

  • Page 15

    15 Owner’ s Manual Owner’ s Manual  1 . F W L O O P O U T In addition to a mix of channels 1 to 4, the FireW ir e output to the computer can contain any FireW ir e input, 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 FireW ir e inputs.) • If [...]

  • Page 16

    1 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er Appendix A: Ser vice Information • If you ar e playing a guitar into channel 2, 3, or 4, you need to use a DI box for the correct impedance match and high frequency fidelity . • T ry the same source signal in another channel, set up exactly like the suspect channel. • Only pho[...]

  • Page 17

    17 Owner’ s Manual Owner’ s Manual Repair For warranty repair or r eplacement, r efer to the war- ranty information on page 27. Non-warranty repair for Mackie products is available at a factory-authorized service center . T o locate your nearest service center , visit www .mackie.com, click “Support” and select “Locate a Service Center .?[...]

  • Page 18

    18 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er 1 / 4" TRS Phone Plugs and Jacks “TRS” stands for Tip-Ring-Sleeve, the thr ee 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: B a l a n c ed M on o SL EE VE TI P SL EE V[...]

  • Page 19

    19 Owner’ s Manual Owner’ s Manual Appendix C: T echnical Info Input Impedance: Line input: 100 k Ω balanced Phono input: 47.5 k Ω shunt with 200 pF Maximum Output Lev els: Main out: +15 dBu Aux out: +15 dBu Phones: 1.5 V rms into 32 Ω (70 mW) Output Impedance: Main out: 120 Ω Aux out: 120 Ω Phones: 50 Ω Equalization Low: +10/–inf dB @ [...]

  • Page 20

    0 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er Block Diagram L R Main L R Main Main Ou t le ve l L eve l Aux Out L L R Aux L Main Ou t L Phones level NOTE: Switches are shown in the default (ou t) p os itio n . Channels 2 -3 L R 3-Band E Q Gai n Gai n LO HI MID LO HI MID Main Ou t R Aux Out R Phones Channe l 4 Aux R Au x L eve l [...]

  • Page 21

    1 Owner’ s Manual Owner’ s Manual Appendix D: FireWire S y s t e m R e qu i r em e n t s These are the minimum r equir ements for your com- puter system to use the U.420 FireW ir e interface. For the PC: • Windows XP (service pack 2) • Pentium 4 or Athlon XP processor • 256 MB RAM For the Mac: • OS X (10.3.9 or higher) • G4 process[...]

  • Page 22

     U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er The U.420’s built in Fir eW ire connection allows over - dub style recording to a Mac or PC digital audio work- station (DA W) through the FireWir e cable. Here ar e some steps showing how to r ecord a first track, and then record additional tracks while monitor - ing ones that [...]

  • Page 23

     Owner’ s Manual Owner’ s Manual * In T racktion, 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. Y ou’ll hear existing tracks playing back via the FireW ir e in, and you’ll be monitoring the track [...]

  • Page 24

    4 U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er 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 (delay) of the audio passing through the mixer’s Fir eW ire interface.[...]

  • Page 25

    5 Owner’ s Manual Owner’ s Manual 9. W ait 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 [...]

  • Page 26

     U.4 0 4-Channel Line Mix er U. 4 20 4-Channel Line Mix er For the Mac: M a c i n t o s h O S X A ud i o M I D I S e t u p ( v e r si o n 1 0 . . 9 o r l a t e r ): Macintosh OS X does not requir e Fir eWir e drivers to be installed. OS X provides a dedicated setup utility for audio and MIDI. Y ou can use the Audio MIDI Setup utility to[...]

  • Page 27

    7 Owner’ s Manual Owner’ s Manual U.420 Limited W arranty Please keep your sales receipt in a safe place. A. LOUD T echnologies Inc. warrants all materials, workmanship and proper operation of this product for a period of one year from the original date of purchase. Y ou may purchase an additional 24-month Extended W arranty (for a total of [...]

  • Page 28

    16220 W ood-Red Road NE • W oodinville, WA 9807 2 • USA United States and Canada: 800.898.3211 Europe, Asia, Central and S outh America: 425.487 .4333 Middle East and Africa: 31.20.654.4000 F ax: 425.487 .4337 • www .mackie.com E -mail: sales@mackie.com[...]