Tapco Juice J-1400, Owner'S Manual

Page: 8 / 20

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 amplifi er to full
power into 4 ohms:
J•800 = 300 watts per channel into 4 ohms
J•1400 = 450 watts per channel into 4 ohms
J•2500 = 750 watts per channel into 4 ohms
This equates to a gain of about 30 dB (30 dB, 32 dB,
and 34 dB respectively). The graphics around the
knob indicate full gain of (about) 30 dB when the
knob is all the way up (fully clockwise).
After you have set the levels for the mixer (or
other signal source), adjust the Level controls on the
amplifi er as the fi nal adjustment to set the overall
volume for the system.
2. SIG
This is short for “signal present.” These green LEDs
indicate when a signal is present after the Level
controls, at the output stage of the power amplifi er. If
the Level controls are turned all the way down (fully
counterclockwise), these indicators will not light.
3. OL
This is short for “overload.” These red LEDs indicate
when the output of the amplifi er has reached the
maximum, 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 hitting
the full output of the amplifi er.
However, if the OL (overload) LED is
blinking frequently or continuously,
turn down the source signal (i.e.,
the mixer’s master faders) or the
amplifi er’s Level controls.
4. POWER
This handy switch turns the power amplifi er on and
off. When the amplifi er is on, the POWER LED lights to
let you know Juice is ready and rarin’ to go!
REAR PANEL FEATURES
5. Power Cord Socket
Here is where you connect the detachable power
cord that came in the box with your amplifi er. Plug
the other end of the power cord into an AC outlet
properly confi gured with the voltage required for your
particular model.
TAPCO Juice Features
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
LINE
(BALANCED)
INPUT A
LINE
(BALANCED)
SERIAL / DATE CODE
INPUT
CONNECTION
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
BY BY
ON
OFF
POWER
30
-
00 30
-
00
SIG OL SIG OL
B
J•2500
A
dB dB
6
7
8
9
10 11
1
4
5
3
1
2 2
3