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RCA INPUT
• Connect the RCA-outputs of your radio to the RCA input terminals of the amplifier.Take good care
that you connect the Right output of your radio to a Right input of your amplifier,and that you con-
nect the Left output of your radio to a Left input of your amplifier.
SIGNAL INPUT
• The RCA’s to your left are the ‘Line-in’ terminals and are to be connected with your radio/cassette
or CD player.
• Each Caliber amplifier offers you the possibility to connect a second (or more) amplifier(s) to your
system via the “Signal-out” terminals.The advantage of two amplifiers is that one amplifier can be
used for normal stereo, while the other is used as a subwoofer amplifier.
• All Caliber amplifiers have a variable input level adjustment. It allows you to match any signal source
(CD player,AM/FM cassettedeck, etc) correctly from its pre-amp output into your Caliber amplifier.
The adjustment ranges from 15V - 500mV(0.5V).
• The Caliber Performance amplifiers feature a built-in variable crossover which allows you to fine-
tune your amplifiers response as you like it. Either for the Full Range sound, in which case the LPF-
OFF-HPF switch remains in its OFF position, or you can specifically select the High-Pass-Filter (HPF)
or Low-Pass-Filter (LPF) to adjust to your speakers requirements.The built-in variable crossover can
be adjusted in a range from 50Hz - 250Hz.
SPEAKER OUTPUT
•All the Caliber Performance amplifiers have Stereo/Bridgeable Tri-Mode speaker output terminals.
The amplifier has its own stereo/bridge switch built-in, so there is no need to select a stereo or
bridged mode.You can connect the speakers to each channel in stereo mode, and simultaneously
connect a sub-woofer to the speaker terminal in a bridged mode.
•Pay attention in connecting your speakers and/or sub-woofers. Be sure to observe correct speaker
output connections for front, rear and their polarity.
• In the stereo mode, connect the right speaker output to the right speaker and the left to the left.
Connect the positive (+) output to the positive (+) speaker terminal and the negative (-) output
to the negative (-) speakerterminal.
• In the bridged mode connect the right (+) positive to the positive speaker terminal and the left (-)
negative to the negative speaker terminal.
• Do not use the negative speaker output commonly for left and right speakers (common ground).
Improper polarity causes a loss of bass response.
• Never connect the negative speaker output to the chassis of your vehicle. This can cause severe
damage to your Car Audio System.
AMPLIFIER ADJUSTMENTS
• Put the input level adjustment knob to the minimum.
• Put the volume of your radio to 3/4 of the maximum.
• Adjust the Bass Boost to your personal sound.
•Now adjust the input level of the front channel. Slowly turn up the input level
and listen carefully untill you hear the amplifier begin to distort. A Caliber Amplifier “clips”
very softly, so this can sometimes be a difficult adjustment. If you have turned up the Bass
Boost to much, the amplifier will start clipping immediatly. In that case you must turn back
the Bass Boost and start adjusting the inputlevel again.You will hear that the Bass you wan-
ted can be required in this way.
CALIBER WARRANTY
Due to the complexity of our products, we strongly recommend that this
amplifier is installed by your authorized Caliber dealer. If properly installed by your dealer we provide a
warranty for 12 month from the date of purchase.
If you install this amplifier yourself, we wish you lots of fun and succes in doing
so. If you follow our guidelines, you’ll get the best result. Our warranty, however, will be limited to and
not exceed 30 days from the date of purchase.
FEATURES
•Bridgeable outputs.
•’Tri-mode’ output capability, simultaneous stereo & bridged mono set up is pos-
sible.
• Pulse Width Modulated (PWM) MOSFET Power Supply.
• Balanced inputs
•Variable input sensitivity: RCA input 0,5V to 15V.
•Variable input sensitivity: High Level input
• BassBoost 0db / 6dB / 12dB
• Thermal-, Overload- and Shortcircuit protection.
• Excellent muting circuitry assures no turn on/off ‘pops’.
• Built-in Full Range/Highpass/Low Pass Switch.
• Chromium plated power connectors for optimal power distribution.
• Chromium plated speaker connectors for optimal signal output.
• European design and engineering.
MOUNTING
The amplifier has to have at least 5 cm (2”) ventilation space at all sides, to allow the heat to rise
away from the amplifier. Be sure that the power and signal cables can enter and leave the amplifier
in a straight line, to avoid the risk of malfunction. Always place the power- and signalcables at
opposite sides of the vehicle to reduce any noises.
The amplifier should be protected from exposure to moisture and direct sunlight.
Mark the mounting surface using the amplifier as a template, then drill 2.5 mm (1/8”) diameter holes
at the marked locations and mount the amplifier using the supplied self-tapping screws.
INSTALLATION
Remember to always disconnect battery ground before working on a vehicle’s electrical system!
Always place a fuse or circuit breaker no more than 30 cm (12”) from the battery, no greater than
the fuse(s) of your amplifier for optimal protection.
GETTING YOUR POWER STARTED
• First, the +12V terminal is connected directly to the battery of your car. Use a
cable of at least 10 mm
2
, and make sure that the connectors are of the same
value.
- Don’t forget the extra “Vehicle protection” fuse.
- The 12V + terminal should NOT be connected to the car fuse box.
• Second, the ground terminal (GND) must be fastened securely to the chassis of
the vehicle with the same gauge cable as the positive cable (the same amount
of power has to run through it). Ensure that all paint, undercoating or any other
insulation is removed from the area where you want to make your ground con-
nection to.
•Third, the last cable to connect is your remote turn-on (REM). Many radio-cas-
sette and CD-players have an output terminal for connection of the REM of an
amplifier. If you don’t have such an output, a separate switch must be installed to
control your amplifiers on/off function.
SIGNAL INPUT
The Caliber Performance Amplifiers offer you two possibilities for your signal
input.
•A High Level input, using the loudspeaker output from your radio and the special
High Level inputplug you found in the box.
• Signal input by using a RCA cable from your radio’s RCA outputs to the ampli-
fiers signal input RCA’s.
NEVER USE HIGH LEVEL INPUT AND RCA
INPUT AT THE SAME TIME!
HIGH LEVEL INPUT
