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13. Unplug this apparatus during lightning storms or when SAFETY INSTRUCTIONS unused for long periods of time. 1. Read these instructions. 14. Refer all servicing to qualified service personnel. Servicing 2. Keep these instructions. is required when the apparatus has been damaged in any 3. Heed all warnings. way, such as when the power-supply cord or plug has been 4. Follow all instructions. damaged, liquid has been spilled or objects have fallen into 5. Do not use this apparatus near
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19. Exposure to extremely high noise levels may cause According to OSHA, any exposure in excess of these permanent hearing loss. Individuals vary considerably in permissible limits could result in some hearing loss. To susceptibility to noise-induced hearing loss, but nearly ensure against potentially dangerous exposure to high everyone will lose some hearing if exposed to sufficiently sound pressure levels, it is recommended that all persons intense noise for a period of time. The U.S. Gover
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Getting Started The following steps will help you set up your amplifier, and get the levels just right. 4. In STEREO and MONO modes, connect speaker SETTINGS: cables to the SPEAKER OUTPUTS, either the 1. Be sure the amplifier’s POWER switch is off. ® binding posts or the Speakon connectors. 2. Turn down both Level controls. • The binding post connectors are wired as 3. On the rear panel, set the SUBSONIC FILTER follows: switch OFF and the CLIP LIMIT switch ON. red = hot (+ speaker terminal)
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• Before making connections to an amp or • If you shut down your equipment, turn off the reconfiguring an amp’s routing, turn the amp’s amplifiers first. When powering up, turn on the level controls down, turn the power off, make the amplifiers last. changes, turn the power back on, and then turn • Save the shipping box and packing material! You the level controls back up. may need it someday. If not, it makes a great end table or hiding place for your cat. C o n t e n t s Safety Instructions
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Introduction ® Thank you for choosing a TAPCO Juice™ power amplifier. The TAPCO product line hails back to the days of TAPCO Corporation, Greg Mackie’s first company. TAPCO revolutionized the audio industry in 1969 with the very first 6-channel mixer specifically designed for keyboards and rock ‘N’ roll PA. In essence, TAPCO re-defined the price performance ratio and made high-quality professional audio mixers accessible to virtually anyone. Today, TAPCO is reborn with the same ideals and is backe
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WWW.TAPCOGEAR.COM WWW.TAPCOGEAR.COM WWW.TAPCOGEAR.COM OPTIONAL CONNECTION USING BINDING POSTS Hookup Diagrams TO SPEAKERS Stereo Hookup CHANNEL 2 BRIDGED CHANNEL 1 SPEAKER CONNECTION INPUT CONNECTION INPUT 2 CAUTION TO REDUCE THE RISK CHANNEL 2 BRIDGED CHANNEL 1 BREAKER OF FIRE OR ELECTRIC SHOCK, DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE. SEE INSTRUCTIONS BEFORE USING. LINE FROM MIXING CONSOLE (BALANCED) SPEAKER CONNECTION AMP MODE MONO INPUT 1 CHANNEL 2 BRIDGED CHANNEL 1 LEFT AND
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WWW.TAPCOGEAR.COM TAPCO Juice Features 3 3 1 2 2 2 SIG OL SIG OL 1 1 4 30 30 dBu dBu POWER 3. OL FRONT PANEL FEATURES This is short for “overload.” These red LEDs 1. Level indicate when the output of the amplifier has reached the maximum, and is right on the hairy These two knobs control the levels of Channels edge of clipping. Clipping is bad for speakers and 1 and 2. The knobs are detented to make it easy to should be avoided. set both controls to the same level. Usually, these It is ok
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most speakers can’t reproduce frequencies that 6. BREAKER low. By engaging the SUBSONIC FILTER, you allow This is a resettable circuit breaker that monitors the amplifier to power only the frequencies that the amount of current being drawn by the amplifier. you can hear. In addition, this filter can remove low- Under normal operating conditions, this should never frequency stage noise (footsteps) and accidental pop. An unusual condition may cause the breaker to microphone pops that could da
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shelf across the back of the rack, or angle brackets Input Wiring attached between the rear support rails and the Use a high-quality 3-conductor shielded cable rear rails of the rack. This is recommended for all to connect the signal between the signal source components mounted in a rack that is going to be (mixing console, equalizer, etc.) and the balanced moved frequently (or thrown in the back of a pickup inputs to the amplifier. If you are using unbalanced truck and transported down
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WWW.TAPCOGEAR.COM WWW.TAPCOGEAR.COM Using the 1/4" TRS INPUT 1s a “Thru” Connector Note: If you use an unbalanced Because the XLR connector and the 1/4" TRS 1/4" TS cable to daisy-chain connector are in parallel, you can use the 1/4" TRS the TRS input jack to another jack as a “Thru” connector to pass the input signal on amplifier, you will unbalance the to another amplifier’s input (see Figure below). XLR input on the Juice amplifier. This negates the benefits associated with balanced lines
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1/4" Stereo and Mono Modes Bridged Mode Binding Posts Binding Posts When using the binding post When using the binding posts in bridge mode, outputs in stereo or mono modes, connect the positive side of the speaker cable to you can terminate your speaker the CHANNEL 1 red (+) binding post, and connect cables with single or double banana the negative side of the speaker cable to the plugs, spade lugs, or leave them CHANNEL 2 red (+) binding post. No, that’s not a unterminated (bare wires): u
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BROUGHT TO YOU BY THE GROOVY FOLKS IN WOODINVILLE, WA, USA. MANUFACTURED IN ITALY. "TAPCO" AND "MACKIE" ARE REGISTERED TRADEMARKS OF MACKIE DESIGNS INC. WWW.TAPCOGEAR.COM Dual-Channel Connection The BRIDGED connector has the added feature of providing both speaker outputs on a single connector. This allows you to use a single cable to carry both channels from the amplifier to the speakers. Many speakers with Speakon connectors provide an Input connector and a “Thru” connector for connectin
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Appendix A: Service Information One side is way louder than the other Warranty Service • Are both Level controls set to the same position? Details concerning Warranty Service are spelled out in the Warranty section on page 19. • Check your source signal to make sure the left If you think your amplifier has a problem, please and right signals are balanced. do everything you can to confirm it before calling • Are the speaker impedances matched? Different for service. Doing so might save you fro
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Noise/Hum • Check the signal cable between the mixer and 4. Pack the amplifier in its original package, the amplifier. Make sure all connections are including endcaps and box. This is VERY good and sound. IMPORTANT. When you call for the Service Request Number, please let Tech Support know • Make sure the signal cable is not routed near if you need new packaging. You can order new AC cables, power transformers, or other EMI- packaging through our parts department. inducing devices. TAPCO
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Appendix B: Technical Info Do The Math: Ohms, Loads, and Such An ohm is a unit of resistance — the more ohms, speaker fails in a parallel configuration, the others the more resistance (or, more accurately in this case, will still work. impedance). The more the resistance, the less the Calculating parallel loads is easy, as long as power. each speaker has the same value — just divide the If you’re dealing with just one speaker (or cabinet) value by the number of speakers. For instance, four p
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Juice Series Specifications Continuous Sine Wave Average Output Subsonic Filter – 9 dB @ 30 Hz Power for each channel with both channels driven, 20 Hz to 20 kHz Topology J•800 J•1400 J•2500 J•800, J•1400: Class AB 2 ohms: 480 W 800 W 1400 W J•2500: Class H 4 ohms: 300 W 450 W 750 W 8 ohms: 205 W 310 W 575 W Cooling Dual variable-speed fans with back to front airflow Bridged Mono Operation, 20 Hz to 20 kHz J•800 J•1400 J•2500 Indicators 4 ohms: 800 W 1400 W 2500 W Channels A and B
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Juice Series Block Diagram This shows an outline of the interesting things going on inside the amplifier. 18 OL + +VDC SIG – CHANNEL A INPUT A LEVEL 2 1+ POWER BALANCED 1 + AMPLIFIER 2– LINE INPUT – 3 1– (XLR-F) CHANNEL A ON ON 2+ AMP SPEAKER MODE INPUT A OUT OFF OFF –VDC MONO SWITCH BALANCED STEREO LINE INPUT PROTECTION 1+ MONO (TRS) BRIDGE DC OFFSET + STEREO SUBSONIC CLIP 2– OVER TEMP – 1– FILTER LIMITER BRIDGE SHORT CIRCUIT BRIDGED 2+ CURRENT LIMIT MONO SPEAKER ON ON OUT STEREO +VDC SIG OL BR
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TAPCO LIMITED WARRANTY A. LOUD Technologies Inc. warrants all materials, authorized service centers may use refurbished parts for workmanship and proper operation of this TAPCO repair or replacement of any product. Products returned product for a period of one year from the original to LOUD Technologies that do not meet the terms of this date of purchase. If any defects are found in the Warranty will not be repaired unless payment is received materials or workmanship, or if the product fails
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