Bedienungsanleitung JL Audio M500 (Seite 9 von 20) (Englisch)

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Tuning Hint: If you are using the M500/3

to drive a subwoofer system (“LP” mode),

and a component satellite speaker system

(“HP” mode), 80 Hz is a good baseline

“Filter Freq. (Hz)” setting. After properly

adjusting the “Input Sens.”, as outlined in

Appendix A (page 14), you can fine tune

the “Filter Freq. (Hz)” control to achieve

the desired system frequency response.

REMOTE LEVEL CONTROL OPTIONAL

INPUT SECTION

(

)

(

)

Remote

Level

Control

CH. 1&2 SUB CH. Preouts

+12 VDC Ground Remote

CH. 1

(

)

CH. 2

(

)

Bridged Mono Subwoofer Output

With the addition of the optional Remote

Level Control (HD-RLC), you can control the

volume of the subwoofer channel (Subwoofer

Level) or of the entire M500/3 from a location of

your choosing. This is useful for subwoofer level

control, cabin speaker level control, zone volume

control or even as a master volume control for

the entire system.

The HD-RLC connects to the jack labeled

“Remote Level Control” on the Connection

Panel of the amplifier using a standard telephone

cable (supplied with the HD-RLC). If desired,

multiple M-Series (model years 2010+) and

MHD amplifiers can be controlled from a single

HD-RLC controller using a simple phone line

“splitter” and multiple phone cables.

When connected to the amplifier, the

HD-RLC operates as follows. At full counter-

clockwise rotation, the audio of the selected

channels will mute completely. At full clockwise

rotation the level will be the same as if the

HD-RLC was not connected at all. In other

words, it operates strictly as a level attenuator.

“Remote Level Mode” Switch: This switch

allows you to assign the operation of the

HD-RLC to the entire amplifier or only the

subwoofer channel. In the “Al l” position, the

HD-RLC knob will affect all channels equally.

In the “Sub Ch.” position, only the level of

the subwoofer channel will be affected by the

HD-RLC knob.

PREOUTS

The M500/3 incorporates a pass-through

preamp output section, so that additional

amplifiers can be easily added to the system. This

pass-through pre-amp output can be configured

three different ways using the switch labeled

“Preouts From”.

1) “1&2”: The preamp output delivers the same

signal that is connected to the CH 1&2 Inputs.

2) “Sub”: The preamp output delivers the same

signal that is connected to the Subwoofer

Channel Inputs.

3) “Sum”: The preamp output delivers a summed

signal, combining the “Ch 1 & 2” inputs and the

“Sub Ch.” inputs into a stereo signal pair.

Note: Any signal delay between the “Ch 1 & 2”

and “Sub Ch.” inputs can result in a cancellation

of signals within certain frequency ranges when

using the “Sum” position. If you experience a loss

of bass output in the “Sum” position, compared

to the “1&2” position, you are likely dealing

with a delayed signal in either the front or rear

outputs of the source unit. If the front to rear delay

is desirable for other reasons or if it cannot be

defeated at the source unit, we recommend that

you use the “1&2” position.

Note: In any of the three modes, the preamp

output signal is not affected by any crossover

filter selected (if the input signal is full-range, the

preamp output will be full-range).

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