Bedienungsanleitung JL Audio M500 (Seite 10 von 20) (Englisch)

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10 | JL Audio - M500/3 Owner’s Manual

SPEAKER OUTPUTS

The M500/3’s speaker outputs are designed

to accept 16 AWG - 8 AWG wire. To connect the

speaker 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 and making sure that the wire (not the

insulation) is firmly gripped by the wire clamp in

the terminal.

The M500/3’s main channels are designed to

deliver power into speaker loads equal to or greater

than 2 ohms when using a “stereo” configuration

and speaker loads equal to or greater than 4

ohms when using a “bridged” configuration. The

subwoofer channel is designed to deliver power into

subwoofer loads equal to or greater than 2 ohms.

INPUT SECTION

(

)

(

)

Remote

Level

Control

CH. 1&2 SUB CH. Preouts

+12 VDC Ground Remote

CH. 1

(

)

CH. 2

(

)

Bridged Mono Subwoofer Output

IMPORTANT

Speaker loads below 2 ohms nominal per

channel (or 4 ohms bridged) are not

recommended and may cause the amplifier

to initiate a protection mode which reduces

power output.

BRIDGING CONSIDERATIONS

Bridging is the practice of combining the

output of two amplifier channels to drive a single

load. When bridged, each channel produces

signals of equal magnitude, but opposite polarity.

The combined output of the two channels

provides twice the output voltage available from

a single channel. The M500/3 has been designed

for bridging of its main channel pair without the

need for input inversion adaptors.

To bridge the main channels, use the “Left +”

and “Right –” speaker connectors only (the “Left

–” and “Right +” remain unused). The bridged

channel pair will deliver optimum power into a 4

ohm load.

IMPORTANT

When the M500/3’s main channels are bridged,

they will deliver 200W x 1 into a 4 ohm load

or 150W x 1 into an 8 ohm load. Operating the

bridged channels into a load lower than 4 ohms

is not recommended.

IMPORTANT

A bridged pair of channels requires that both

channels in the pair receive input. You must

connect the mono or stereo source signal to

both the left and right inputs of the bridged

channel pair. Connection of only one input will

result in reduced power output, increased

distortion and can cause the amplifier to

overheat. Do not do this!

When the M500/3’s main channels are

operating in bridged mode, the output will be in

mono (only one channel). This mono channel can

contain only right channel information, only left

channel information, or the sum of the signals

from right and left input channels. In order to

achieve one of these options, configure the inputs

to that pair of channels in one of these two ways:

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