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XMV4280/XMV4140 Owner’s Manual
7
Introduction
Thank you for your purchase of the Yamaha XMV4280 or XMV4140 power amplifier. Please read
through this manual carefully before beginning use, so that you will be able to take full advantage of
your power amplifier’s superlative features and enjoy trouble-free operation for years to come.
After you have read the manual, keep it in a safe place for reference when needed.
The XMV is a multi-channel power amplifier with the follow-
ing features.
• Both high-impedance and low-impedance connec-
tions are supported
Both high-impedance connections to 70V/100V lines and
4Ω/8Ω low-impedance connections are supported. A rear
panel DIP switch allows this setting to be specified for every
two channels.
• Newly-developed “Double Power mode”
The newly-developed “Double Power mode” doubles the
amplifier output of each channel when low-impedance con-
nections are used.
* The number of available channels will be halved.
•Settings can be made via application software
Although settings such as mute on/off and attenuator values
can be edited from the panel of the amplifier itself, you can
use an MTX series matrix processor and computer to edit the
settings of multiple XMV units.
• Support for the newly-developed “YDIF” digital
audio transmission format
This allows up to 16 channels of audio and word clock to be
transmitted and received via an Ethernet cable.
This model can receive four channels of audio signals via
YDIF.
•High efficiency
The newly-developed output circuits allows high efficiency.
You can easily configure a complete sound system featuring the
XMV by connecting it to MTX series matrix processors or to
MTX Editor system configuration software. The owner’s man-
ual for the MTX and for MTX Editor, and MTX Editor itself
(subsequently referred to as “the editor”) can be downloaded
from the download page of the following website.
http://www.yamahaproaudio.com/
• List of related manuals
The firmware version of the XMV itself can be checked from
Editor. You can update the firmware via Editor.
You can download the latest firmware from the “Downloads”
page on the following website.
http://www.yamahaproaudio.com/
NOTE
• When there are differences in the specifications of the XMV4280 and the XMV4140, this manual will use curly brackets { } to
enclose information that applies only to the XMV4140.
(Example: 280W {140W}).
• Unless otherwise specified, illustrations are taken from the XMV4280.
Features Related manuals and software
MTX3 Owner’s
Manual
This explains how to use the MTX3
matrix processor.
MTX Editor User’s
Manual
This explains how to use MTX Editor.
MTX Setup Manual
This explains how to use and set up
the MTX3 matrix processor that is
used along with the XMV power amp.
NOTE
In order to view the downloaded manuals, Adobe Reader must
be installed in your computer. If you don’t have Adobe Reader,
please access the Adobe Corporation’s website at the following
URL, and download Adobe Reader (free of charge).
http://www.adobe.com/
Firmware Updates
Precautions for Rack Mounting
This unit is rated for operation at ambient temperatures ranging from 0 to 40 degrees Celsius. When mounting the unit with
other XMV unit(s) or other device(s) in an EIA standard equipment rack, internal temperatures can exceed the specified upper
limit, resulting in impaired performance or failure. When rack mounting the unit, always observe the following requirements to
avoid heat buildup:
• When mounting the unit in a rack with devices such as power amplifiers that generate a significant amount of heat, leave
more than 1U of space between the XMV and other equipment. Also either leave the open spaces uncovered or install
appropriate ventilating panels to minimize the possibility of heat buildup.
• To ensure sufficient airflow, leave the rear of the rack open and position it at least 10 centimeters from walls or other sur-
faces. If the rear of the rack can’t be left open, install a commercially available fan or similar ventilating option to secure suf-
ficient airflow. If you’ve installed a fan kit, there may be cases in which closing the rear of the rack will produce a greater
cooling effect. Refer to the rack and/or fan unit manual for details.