3. A fuse of proper size must be installed in line with the main power in order to
prevent damage to your wiring. It should be connected to the battery's positive
terminal, or as close to the battery as possible. Use the fuse holder and fuse
provided, and replace only with the same size fuse. The
Model 1502IQ
©
uses an
AGC 30-amp fuse.
WARNING: USE OF OVERSIZE FUSE WILL DAMAGE YOUR AMPLIFIER
4. The other end of the fuse holder should be connected to the positive power
wire from the amplifier. To extend the length of the power lead, use 12 gauge
wire or larger to reduce power loss.
5. The red and white wire 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 antenna lead exists, a source of 12 volts, connected through a toggle
switch, will do. Do not connect the red and white wire directly to a source that will
leave the amplifier permanently on as this will drain the battery.
6. The RCA (Phono) jacks will accommodate either high or low level signals,
ranging from 150 mV to 5 Volts. For low-level signals, always use shielded cable
and avoid routing signal cables in the vicinity of any power wires. The center pin
of the RCA plug is always the positive input connection. With the connector end
of the amplifier facing you, top side up, the connections are
LEFT
and
RIGHT
.
OPERATION/ADJUSTMENT
The output of most any car audio equipment will follow a common distortion
curve. This curve will show that the distortion is at its lowest level right before the
amp reaches full rated output. After that point, the distortion increases rapidly to
unusable levels. For any system to operate at minimum distortion with minimum
noise and still reach full power output, the equipment should be aligned to
operate at the same point on the curve at the same time.
In a basic system, using a single amplifier, set the amp gain to minimum, turn the
source unit up until it just starts to distort, then back down slightly. This is the
point where the output of the source is cleanest. Now, bring the
gain of the amp
up until it just starts to distort and back down slightly. This will allow the source
and amp to reach maximum usable output at the same time.
BRIDGED MONO OPERATION
The
Model 1502IQ
©
is built with the right channel inverted. This allows the
amplifier to be used in a bridged mono configuration.
These amplifiers are capable of driving 2-ohm mono loads (**
4 ohm speaker
impedance**
). To use these amplifiers in that configuration, the internal taps
© 2008 Linear Power, Inc. - ALL RIGHTS RESERVED
LINEAR POWER™ is a trademark of Linear Power, Inc.
4