Mackie J1400 Owner's Manual - Safety Instructions

Manual is about: Juice Tapco

Summary of J1400

  • Page 1

    J•800 j•1400 j•2500 owner’s manual j•800 j•1400 j•2500 sig ol sig ol 30 - a b 00 30 - 00 on off power by j•2500 db db breaker clip limit on off subsonic filter at 30hz on off stereo amp mode mono bridge channel b bridged channel a caution to reduce the risk of fire or electric shock, do not expose t...

  • Page 2: Safety Instructions

    2 safety instructions 1. Read instructions — all the safety and operation instructions should be read before this product is operated. 2. Retain instructions — the safety and operating instructions should be kept for future reference. 3. Heed warnings — all warnings on this product and in these oper...

  • Page 3

    Part no. 0007787 rev. A 08/03 ©2003 mackie designs inc. All rights reserved. 3 what me, read a manual? Before you begin, please make sure you read the safety instructions on page 2 and getting started on page 4. Your new tapco ® amplifi er is designed to set up quickly and operate easily. We know it’...

  • Page 4

    4 getting started the following steps will help you set up your amplifi er, and get the levels just right. Settings: 1. Be sure the amplifi er’s power switch is off. 2. Turn down both level controls. 3. On the rear panel, set the subsonic filter switch off and the clip limit switch on. 4. Determine wh...

  • Page 5

    5 breaker clip limit on off stereo subsonic filter at 30hz on off amp mode mono bridge channel b bridged channel a caution to reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. See instructions before using. Stereo/mono bridged speaker connection input b lin...

  • Page 6

    6 introduction thank you for choosing a tapco ® juice™ power amplifi er by mackie designs. The tapco product line hails back to the days of tapco corporation, greg mackie’s fi rst company. Tapco revolutionized the audio industry back in 1969 with the very fi rst 6-channel mixer specifi cally designed fo...

  • Page 7: Stereo Hookup

    7 hookup diagrams stereo hookup mono hookup breaker clip limit on off stereo subsonic filter at 30hz on off amp mode mono bridge channel b bridged channel a caution to reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. See instructions before using. Stereo/m...

  • Page 8: Front Panel Features

    8 front panel features 1. Level these two knobs control the levels of channels a and b. The knobs are detented to make it easy to set both controls to the same level. Usually, these controls are set all the way up. The amplifi ers are designed so that a +3.4 dbu (1.15v rms) input signal drives the am...

  • Page 9: General Precautions And

    9 6. Breaker this is a resettable circuit breaker that monitors the amount of current being drawn by the amplifi er. Under normal operating conditions, this should never pop. An unusual condition may cause the breaker to pop, such as a mains voltage surge occurring at the same time as a peak amplifi e...

  • Page 10

    10 thermal considerations the juice amplifi ers are fan-cooled with two separate fans. One fan brings cool air in from the back and the other fan blows the warm air out the front of the chassis. Make sure that cool air is available at the back of the amplifi er, and that there is room in the front for...

  • Page 11

    11 breaker clip limit on off stereo subsonic filter at 30hz on off amp mode mono bridge channel b bridged channel a caution to reduce the risk of fire or electric shock, do not expose this apparatus to rain or moisture. See instructions before using. Stereo/mono bridged speaker connection input b li...

  • Page 12

    12 stereo and mono modes when using stereo or mono modes, wire the speakon connectors as shown below: cold hot 1+ 1+ 1– 1– 2– 2+ stereo and mono speakon connection bridge mode when using bridge mode, wire the speakon connector as follows: cold amplifier end speaker end hot cold hot 1+ 1+ 1– 1– 2– 2+...

  • Page 13: Warranty Service

    13 appendix a: service information one side is way louder than the other • are both level controls set to the same position? • check your source signal to make sure the left and right signals are balanced. • are the speaker impedances matched? Different speaker loads can cause different volume level...

  • Page 14: Repair

    14 noise/hum • check the signal cable between the mixer and the amplifi er. Make sure all connections are good and sound. • make sure the signal cable is not routed near ac cables, power transformers, or other emi-inducing devices. • is there a light dimmer or other scr-based device on the same ac ci...

  • Page 15: Do The Math: Ohms, Loads,

    15 appendix b: technical info do the math: ohms, loads, and such an ohm is a unit of resistance — the more ohms, the more resistance (or, more accurately in this case, impedance). The more the resistance, the less the power. If you’re dealing with just one speaker (or cabinet) per output, the load i...

  • Page 16

    16 juice series specifi cations subsonic filter – 9 db @ 30 hz topology j•800, j•1400: class ab j•2500: class h cooling dual variable-speed fans with back to front airfl ow indicators channels a and b sig (signal present), ol (overload) power current consumption j•800 j•1400 j•2500 idle 0.5 a 0.5 a 1....

  • Page 17: Juice Series Block Diagram

    17 juice series block diagram this shows an outline of the interesting things going on inside the amplifi er. 1+ 1 – 2 – 2+ 1+ 1 – 2 – 2+ input a balanced line input (trs) input a balanced line input (xlr-f) input b balanced line input (trs) ta p c o juice series block dia gram 08.15.03 input b balan...

  • Page 18

    18 byb y on off power 30 - 00 30 - 00 sig ol sig ol b j • 2500 a db db breaker c l ip l im it o n o f f stereo s u b s o n ic f il t e r a t 3 0 h z o n o f f amp mode mono b r id g e channel b bridged channel a caution to reduce the risk of fi re or electric shock, do not expose this appara tus to ...

  • Page 19

    19 tapco limited warranty a. Mackie designs inc. Warrants all materials, workmanship and proper operation of this tapco product for a period of one year from the original date of purchase. If any defects are found in the materials or workmanship, or if the product fails to function properly during t...

  • Page 20

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