Bedienungsanleitung JL Audio XD300 (Seite 10 von 20) (Englisch)

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10 | JL Audio - XD300/1v2 Owner’s Manual

SUBWOOFER OUTPUTS

The XD300/1v2 is designed to deliver power

into subwoofer loads equal to or greater than 2

ohms of nominal impedance.

The XD300/1v2’s subwoofer outputs are

designed to accept 16 AWG - 8 AWG wire. To

connect the subwoofer wires to the amplifier, first

back out the set screws on the top of the terminal

block, using the supplied 2.5 mm hex wrench.

Strip 1/2 inch (12 mm) of insulation from the

end of each wire and insert the bare wire into the

terminal block, seating it firmly so that no bare

wire is exposed. While holding the wire in place,

tighten the set screw firmly, taking care not to

strip the head of the screw.

You will notice that there are two “+” positive

connections and two “–” negative connections.

This is to facilitate multiple subwoofer wiring.

The two positive and two negative connections

are connected in parallel inside the amplifier.

They are not stereo outputs. Connecting two

subwoofers, each to one set of positive and

negative terminals, will result in a parallel

subwoofer connection. When only connecting

one pair of subwoofer wires, it is not necessary

to use both sets of connections.

Subwoofer loads below 2 ohms nominal are not

recommended and may cause the amplifier

to initiate a protection mode which reduces

power output.

STATUS LED / PROTECTION CIRCUITRY

There is a single multi-color LED on the top

surface of the amplifier to indicate the amplifier’s

operating status.

Rem.

Oset

Signal

Input Voltage

Low

High

Turn-On Mode

Monoblock Subwoofer Amplifier

1) Flashing Green: The amplifier is powering up,

audio output is muted.

2) Constant Green: The amplifier is on and

functioning normally, audio output is active.

3) Constant Red: lights to indicate that the

amplifier has exceeded its safe operating

temperature, putting the amplifier into a

self-protection mode, which reduces the

peak power output of the amplifier. When

its temperature returns to a safe level, the red

light will return to green and the amplifier will

return to full-power operating mode.

4) Constant Amber (Yellow): Indicates that

an over-current condition has occurred

and is accompanied by a muting of the

amplifier’s output. Because the muting

behavior may be very short in duration, it

may manifest itself as an audible, repetitive

ticking or thumping noise in the output.

Over-current conditions can be caused by a

speaker impedance lower than the optimum

load impedance range for the amplifier or

a short-circuit in the speaker wiring. The

latter can result from a short circuit between

the positive and negative speaker wires or

between either speaker wire and the vehicle

chassis. The “Status LED” will remain amber

for a few seconds, even if the over-current

condition is of a very short duration.



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