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Linear Power 2121 Owner's Manual And Installation Manual page 5

Stereo bi-amplifier

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1. The amplifier will work best if it is kept as cool as possible. Mount in a position
that allows air to flow freely through the black fins. Be sure there is ample space
above the amplifier. The amplifier should not be mounted upside down. Avoid
mounting the amplifier in the dash or on the firewall to avoid noises being
radiated directly into the case.
2. Mount your amplifier in a position that allows ample room for gain adjustments,
and the installation, removal, and attachment of all leads.
3. The case of your amplifier is designed to act as a noise shield. To maintain
this protection, be sure the metal case of the amp does not touch the metal of the
car. Do not remove or damage the rubber grommets, which provide electrical
insulation and vibration isolation.
1. Fuse: A fuse of the proper size must be installed in line with the main
power in order to prevent possible damage to the vehicles wiring. It should
be connected to the battery positive terminal or as close to the battery as
possible. Use the fuse holder and fuse provided and replace only with the
same size and type of fuse. Use AGC 30.
WILL DAMAGE THE AMPLIFIER.
2. Main Power: The free end of the fuse holder wire should be connected to the
large RED wire from the amplifier. IMPORTANT: Solder all connections!
3. Main Ground: Connect the large BLACK wire directly to the battery negative
terminal.
4. Remote Turn on: The RED and WHITE wire is not a main power source for
the amplifier, but acts as an electrical switch to turn the amplifier on and off. It
should be connected to the power antenna lead from the radio. Where no power
lead exists, a source of +12 volts connected through a toggle switch will do. DO
NOT CONNECT DIRECTLY TO A SOURCE THAT WILL LEAVE THE
AMPLIFIER PERMANENTLY ON, AS THIS WILL DRAIN THE BATTERY.
5. Signal Input: The RCA (Phono) Jack inputs will accommodate either high or
low level signals, ranging from 180mV to 5 volts. For use with a high level source
that is intended to drive speakers directly, attach the speaker leads to male RCA
plugs and insert into the inputs. NOTE: The positive speaker lead should always
connect to the center pin of the RCA plug.
MOUNTING
WIRING
© 2008 Linear Power, Inc. - ALL RIGHTS RESERVED
LINEAR POWER™ is a trademark of Linear Power, Inc
WARNING: OVERFUSING
.
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