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FEATURES
LR 604 - LR 604 XR: Four-channel amplifiers with compact dimensions and
excellent musical performances.
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, final transistors with in current capacity of
15 A and MOSFET PWM power supply with high energy reserve.
LR 604: Four channels, single or double input. It can work with 4, 3, and 2
channels.
LR 604 XR: Four channels, single or double input, electronic crossover with
linear adjustment which can also be excluded, HI-PASS / BY-PASS output. It can
work with 4, 3, and 2 channels (crossover off) or with 2 channels for HI-PASS and
SUB stereo / mono (crossover on).
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 -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 604 XR (CROSSOVER ON)
ONE INPUT / SUB MONO
LR 604 XR - (CROSSOVER ON)
WIDEBAND FRONT AND REAR WITH OR WITHOUT FADER