Input Sensitivity Controls - JL Audio XD600 Owner's Manual

600w 6-channel amplifier

Hide thumbs

Table Of Contents

Table of Contents

Enlarged version

If you wish to send six discrete channels into

the XD600/6, simply use all six inputs and set the

"Input Mode" switch in the "6 Ch." position.

If you wish to feed all six channels by using

only four channels of input, set the "Input

Mode" switch in the to "4 Ch." and use only

the inputs to channels 1, 2, 3 & 4. In this mode,

channels 5 & 6 will operate with a sum of the 1 &

3 and 2 & 4 input signals, respectively.

If you wish to feed all six channels by using

two channels of full-range input plus two

channels of low-frequency input (subwoofer

output from the source unit), first set the

"Input Mode" switch to "6 Ch.". Next, it will

be necessary to split the full-range signals with

y-adaptors and feed these signals into the inputs

to channels 1 & 2 and 3 & 4. The dedicated

subwoofer signal will be sent to channels 5 & 6.

If you wish to use only two channels of

input to deliver signal to all six amplifier

channels, set the "Input Mode" switch to "2

Ch." and use only the inputs to channels 1 &

2. In this mode, Channels 3 & 5 will operate

with the channel 1 signal and channels 4 &

6 will operate with the Channel 2 signal.

Input Voltage Range:

Input Voltage Range: A wide range of signal

input voltages can be accommodated by the

XD600/6v2's input section (200mV – 8V). This

wide range is split up into two sub-ranges,

accessible via the "Input Voltage" switch:

"Low": for preamp level signals

"High": for speaker level signals

This switch affects all of the channels of the

amplifier equally. The "Low" position on the

"Input Voltage" switch selects an input sensitivity

range between 200mV and 2V. This means that

the "Input Sens." rotary controls will operate

within that voltage window. If you are using

an aftermarket source unit, with conventional

preamp level outputs, this is the position you

should select.

The "High" position on the "Input Voltage"

switch selects an input sensitivity range between

800mV and 8V. This is useful for certain high-

output preamp level signals as well as speaker

level output from source units and small

amplifiers. To use speaker level sources, splice the

speaker output wires of the source unit or small

amplifier onto a pair of RCA cables or plugs,

or use the JL Audio ECS Speaker Wire to RCA

adaptor (XD-CLRAIC2-SW).

Line output converters are usually not needed

with the XD600/6v2. If you find that the output

cannot be reduced sufficiently with a direct

speaker level signal applied to the amplifier and

the "Input Voltage" switch in its "High" position,

you may use a line output converter or voltage

divider to reduce the signal level.