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6. BREAKER

This is a resettable circuit breaker that monitors 

the amount of current being drawn by the amplifier. 
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 amplifier output.

Turn the POWER switch off, and push the 

BREAKER button in to reset the circuit breaker. Turn 
the POWER switch back on and the amplifier should 
resume normal operation. If the circuit breaker pops 
again, something probably isn’t right.
•  Make sure that the total impedance of the 

speakers connected to the outputs is 2 ohms or 
greater (per channel) in stereo mode, or 4 ohms 
or greater in bridged mode.

•  If the breaker pops right away, even with the 

Level controls turned down and the speakers 
disconnected, there may be something wrong 
inside the amplifier. Refer to “Appendix A: 
Service Info.”

7. SPEAKER OUTPUTS

You have two options for connecting your 

speakers: binding posts and Speakon connectors.

Normally, you would use either the binding posts 

or the Speakon connectors. Since the connectors 
are wired in parallel (e.g., CHANNEL 1 binding 
post and Speakon are in parallel, and CHANNEL 2 
binding post and Speakon are in parallel), you can 
connect a speaker to each connector, as long as the 
total impedance per channel is two ohms or more.
•  Two 8 ohm speakers in parallel equals 4 ohms.
•  Two 4 ohm speakers in parallel equals 2 ohms.

See “Output Wiring” on page 11 for information 

on output connection wiring.

8. INPUTS 

The Juice amplifiers give you two options for 

connecting the input signal — XLR input connectors 
and 1/4” TRS (Tip-Ring-Sleeve) connectors. These 
inputs are in parallel, and are identical, electrically 
speaking. You can connect either a balanced or an 
unbalanced signal here. 

Since these two inputs are in parallel, you 

shouldn’t connect more than one source to the 
INPUT 1 or INPUT 2 jacks. However, you can use 
the unused input jack as a “Thru” connector, to 
daisy-chain the signal to another amplifier. See 
“Input Wiring” on page 10 for information on input 
connection wiring.

9. SUBSONIC FILTER 

Turn this switch on to engage a low-frequency 

cutoff (high-pass) filter at 30 Hz. The Juice 
amplifiers can amplify signals below 20 Hz, but 

most speakers can’t reproduce frequencies that 
low. By engaging the SUBSONIC FILTER, you allow 
the amplifier to power only the frequencies that 
you can hear. In addition, this filter can remove low-
frequency stage noise (footsteps) and accidental 
microphone pops that could damage a loudspeaker.

10. CLIP LIMIT 

The CLIP LIMIT switch is there to protect your 

loudspeakers from the effects of clipping. It is 
designed to be virtually transparent, meaning you 
probably won’t even notice any audible difference 
when the switch is turned on. 

We recommend that you leave this switch on at all 

times. However, if you are working at quiet levels, or 
you have already placed a compressor/limiter in the 
signal path, you can leave the CLIP LIMIT switch off.

11. AMP MODE 

This switch determines the input signal routing 

within the amplifier. For most applications, you 
will use the STEREO setting. However, some 
applications might be better suited for using either 
the MONO or the BRIDGE setting.

STEREO: This mode accepts separate left and right 

inputs (A and B), and routes them to the CHANNEL 
1 and CHANNEL 2 outputs. Each channel’s Level 
control adjusts the gain for its own channel.

MONO: This mode accepts a single input (INPUT 

1), and routes it to both the CHANNEL 1 and 
CHANNEL 2 outputs. Each channel’s Level control 
adjusts the gain for its own channel.

BRIDGE: This mode accepts a single input (INPUT 

1), and uses both amplifier outputs to double the 
power to one speaker (or set of speakers). Use the 
CHANNEL 1 Level control to adjust the gain (turn 
the CHANNEL 2 Level control all the way down). 
See “Output Wiring” on page 11 for information on 
how to connect a speaker in Bridge mode.

GENERAL PRECAUTIONS AND 

CONSIDERATIONS

Rack Mounting

The Juice amplifiers are designed to be mounted 

in a standard rack. They require two rack spaces 
(2U = 3.5”). They also require 15.75” depth inside 
the rack, including the rear support brackets. When 
designing your rack, put the heavier items at the 
bottom and the lighter items toward the top.

Secure the front panel of the amplifier to the 

front of the rack using four screws with soft washers 
to prevent scratching the panel. In addition, 
because of the weight of the amplifier, you must 
secure the rear support brackets of the amplifier to 
the back of the rack. You could use a support rail or 

Summary of Contents for Juice J-2500

Page 1: ......

Page 2: ...t exceed the Class A Class B whichever is applicable limits for radio noise emissions from digital apparatus as set out in the radio interference regulations of the Canadian Department of Communicatio...

Page 3: ...25 or less 115 Loudest parts at a Heavy Metal concert Product Serial Purchased at Date of purchase 19 Exposure to extremely high noise levels may cause permanent hearing loss Individuals vary consider...

Page 4: ...O mode and BRIDGE mode connect one cable from the input source to INPUT 1 and connect nothing to INPUT 2 4 In STEREO and MONO modes connect speaker cables to the SPEAKER OUTPUTS either the binding pos...

Page 5: ...Hookup Diagrams 7 TAPCO Juice Features 8 FRONT PANEL FEATURES 8 1 Level 8 2 SIG 8 3 OL 8 4 POWER 8 REAR PANEL FEATURES 8 5 Power Cord Socket 8 6 BREAKER 9 7 SPEAKER OUTPUTS 9 8 INPUTS 9 9 SUBSONIC FI...

Page 6: ...00 and J 2500 are the first power amplifiers in the TAPCO family The Juice Series of amplifiers are powerful and tough They are designed to withstand the punishing rigors of the road and continue to c...

Page 7: ...OR ELECTRIC SHOCK DO NOT EXPOSE THIS APPARATUS TO RAIN OR MOISTURE SEE INSTRUCTIONS BEFORE USING WWW TAPCOGEAR COM DESIGNED IN WOODINVILLE WA USA TAPCO IS A REGISTERED TRADEMARK OF LOUD TECHNOLOGIES...

Page 8: ...ximum and is right on the hairy edge of clipping Clipping is bad for speakers and should be avoided It is okay if the OL LED blinks occasionally It means that the transient peaks of the music are just...

Page 9: ...30 Hz The Juice amplifiers can amplify signals below 20 Hz but most speakers can t reproduce frequencies that low By engaging the SUBSONIC FILTER you allow the amplifier to power only the frequencies...

Page 10: ...program material Under typical conditions reproducing rock music where musical peaks are just below clipping the Juice amplifiers require the following average currents J 800 5 A J 1400 7 A J 2500 10...

Page 11: ...Figure below In MONO and BRIDGE modes INPUT 1 and INPUT 2 are connected together in parallel This allows you to use INPUT 2 as a Thru connector to daisy chain the input signal to another amplifier Ou...

Page 12: ...situation the correct word is polarity Speakons When using the Speakon outputs in stereo or mono modes wire the Speakon connectors as shown below COLD HOT 1 1 1 1 2 2 StereoandMonoSpeakonConnection Br...

Page 13: ...NPUT FROM THRU OUTPUT TO SECOND SPEAKER INPUT TO FIRST SPEAKER INPUT HOT CHANNEL B 1 1 2 2 1 1 2 2 Dual ChannelSpeakonConnection Dual Channel Connection The BRIDGED connector has the added feature of...

Page 14: ...e signal source with headphones plugged into the console If it sounds bad there the problem is not in the amplifier Warranty Service Details concerning Warranty Service are spelled out in the Warranty...

Page 15: ...s is VERY IMPORTANT When you call for the Service Request Number please let Tech Support know if you need new packaging You can order new packaging through our parts department TAPCO is not responsibl...

Page 16: ...arallel means that the positive amp output connects to the positive terminals of all the speakers and the negative amp output connects to the negative terminals of all the speakers If one speaker fail...

Page 17: ...s Sine Wave Average Output Power for each channel with both channels driven 20 Hz to 20 kHz J 800 J 1400 J 2500 2 ohms 480 W 800 W 1400 W 4 ohms 300 W 450 W 750 W 8 ohms 205 W 310 W 575 W Bridged Mono...

Page 18: ...E STEREO MONO BRIDGE STEREO MONO BRIDGE 1 2 3 1 2 3 CHANNEL A LEVEL CHANNEL B LEVEL SUBSONIC FILTER ON OFF ON OFF ON OFF ON PROTECTION DC OFFSET OVER TEMP SHORT CIRCUIT CURRENT LIMIT OFF CLIP LIMITER...

Page 19: ...ologies factory authorized service centers and deemed eligible for repair or replacement under the terms of this warranty will be repaired or replaced within thirty days of receipt LOUD Technologies a...

Page 20: ......

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