Owners Manual

10
APPLICATIONS
Using the M-Patch 2
You can use M-Patch 2 to reduce the
volume of analog audio signals in a
range of applications. With its high-
quality potentiometer, the M-Patch
2 passes signal more accurately,
and sounds better than most built-in
volume controls. Use the M-Patch 2
to attenuate the output of line level
devices such the stereo outputs of a
mixer or the outputs of a microphone
preamplier or equalizer. Inserted in
a 5.1 surround sound system, the
M-Patch 2 can be used to attenuate
the left and right surround channels,
and use three M-Patch 2 units to achieve a desired balance of all six channels.
Another use might be to trim the levels of a 5.1 or greater multi-channel monitor
system -- either one pair of channels, or two, or all of them. Attenuate high
level signals to prevent clipping of A/D converters, and reduce the output of a
D/A converter to prevent overload of down-stream devices in the signal path.
It is also useful as a local volume control for distributed audio systems. The
possibilities are endless!
Computer Audio production systems...
M-Patch 2 provides essential monitor volume controls and switches missing from
computer audio systems.
Simple steps for your home workstation...
1. Perform the following steps with your speaker system turned off and the
Volume controls of the M-Patch 2 set to full attenuation - the full counter
clockwise positoin. Typically you should connect the output of your computer
soundcard or audio interface to one set of the M-Patch 2 input connectors, for
example the L&R Stereo combination XLR/1/4-inch (6.5mm) connectors. You
could also connect multiple connections at the same time if required. Then,
connect and monitor an additional device such as a CD or personal music player
using the remaining set of connectors - RCA or 1/8-inch (3.5mm) mini. This
enables you to selectively monitor your computer output and your music player
and adjust the volume of each to achieve a good balance.
2. Connect XLR cables from the XLR L&R 1 outputs of the M-Patch 2 to your
active monitors or the amplier that powers the monitors. If you have two different
monitor pairs you can connect the second pair to L&R Output 2.
3. Advance the volume controls of your monitors or amplier, set your software
& software volume control panel to Zero dB (full gain). Restore power to your
speaker system. With program material playing, slowly advance the M-Patch 2
Volume controls to produce the desired volume, and use the M-Patch 2 on your
desktop to control your monitor level.
Simple, effective, transparent!
How to connect the M-Patch 2
JBL PROFESSIONAL
NORTHRIDGE, CA. USA
A HARMAN INTERNATIONAL COMPANY
Soundcard, CD player, MP3 Player
OUTPUTS
DAW or Mixer
OUTPUTS
Active speakers 1
INPUTS
Active speakers 2
INPUTS