Bedienungsanleitung Audison lr 230 (Seite 3 von 14) (Deutsch, Englisch, Französisch, Italienisch)

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ENGLISH

FEATURES

Supercurrent series: LR 230, LR 250, LR 270. Two-channels amplifiers with compact

dimensions and excellent musical performances.

The outstanding features of their sophisticated circuitry are: "FRONT END" stages

realised with two complementary differential stages, polarized by two low noise constant

current sources.

The final stage configuration is made of an inverted triplet at pure symmetry.

The power amplifier is realized by a parallel of transistors with current capacity of 15

Amperes each. The PWM MOSFET power supply has been particularly designed to supply

the amplification stages with high currents. These features allow to drive very low loads.

In fact this series of amplifiers has been called Supercurrent for their easiness in driving

loads with 1 Ohm nominal impedance when they are connected in stereo and 2 Ohms

nominal impedance when they are connected in bridge mono.

Of course, as they are amplifiers with very compact dimensions in relation to their

performances, it is important to choose a well-ventilated place for their installation or, if

needed, to put a cooling fan near them when they work at very low loads, 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.

· The 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 calibration levels of the

amplifier until you hear slight saturation phenomena.

LR 270

MORE THAN 1000 WATTS WITH ELECTRONIC CROSSOVERS AND FADER

LR 270

LR 1140 M

SUBWOOFERS

LEFT

PRE OUT

REAR

LR 270

LR 1140 M

PRE OUT

FRONT

LR 270

HI-PASS

FRONT-LEFT

SUBWOOFERS

RIGHT

BRIDGE

270 W - 4 Ohms

HI-PASS

REAR

MONO

285 W - 2 Ohms

MONO

285 W - 2 Ohms

LR 270

LR 1140 M

HI-PASS

FRONT-RIGHT

STEREO

75+75 W - 4 Ohms

BRIDGE

270 W - 4 Ohms

LXR2 SXR2

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