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FEATURES
LR 131 XR - 211 XR. One-channel amplifiers with compact dimensions and excellent
musical performances. They have an internal electronic CROSSOVER specialized in
driving SUBWOOFERS.
The outstanding features of their sophisticated circuitry are: "FRONT END" stages
realized by two complementary differential stages, final stages made of transistors in
Darlington connection, transistors with current capacity of 15 A and MOSFET PWM
power supply with a high energy reserve.
These features allow to easily drive low loads with 2 Ohms nominal impedance.
Of course, as they are amplifiers with very compact dimensions in relation to their
performances, it is better to choose a well-ventilated place for the installation when they
work on 2 Ohms loads or, if needed, a cooling fan can be placed near the device in order
to avoid excessive overheating.
PRECAUTIONS
· In order for this device to function properly it's important that it is installed in a spot
where temperature doesn't fall below 0° C (32° F) or rise above 55° C (131° F).
· It must be installed in a dry and well ventilated spot.
·
Power supply voltage is 12 VCC with negative to ground. Make sure that the
characteristics of the vehicle electrical system are compatible with this device.
· For safe driving we advise to listen to music at a volume level that won't drown external
traffic sounds.
INSTALLATION
For mounting use 4 self-threading screws and protective plastic rings provided. For a
very good result we suggest to use audison cable products to complete your installation.
These include: power cables, signal cables, speaker wires, RCA connectors and all
accessories needed to complete the wiring.
WARNINGS
· INPUTS: If the radio-cassette player doesn't share the output GND with the chassis, the
braided shield of the shielded cable must be connected to the radio-cassette player
chassis.
· OUTPUTS: Never connect the -R and -L outputs to ground or to each other. If a
crossover filter is used, be sure its two channels don't have a common ground.
· REGULATIONS: If you hear saturation phenomena at moderate volume levels, it
means that a distorted signal is coming from the radio-cassette player.
Turn radio-cassette player volume down until there's no longer any distortion. Then
adjust the amplifier calibration levels until you hear slight saturation phenomena.
ENGLISH
LR 131 XR / LR 211 XR
SUBWOOFER MONO - FRONT AND REAR WITH FADER
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