Harman kardon ma 361 service manual

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AU DIOACCESS

MA-361/MA-361CP
TWELVE CHANNEL DIGITAL AMPLIFIER

PRELIMINARY SERVICE MANUAL

Harman Consumer Group

250 Crossways Park Dr.
Woodbury, New York 11797

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Audioaccessi Twe

Amplifier

The Audioaccess MA-361 Twelve Channel
Digital Amplifier-designed, engineered
and manufactured by Madrigal in
Middletown, CT-will no doubt be recog-
nized as the finest amplifier available for
use in any dedicated multi-room system
application. The product of over two years
of development and research, the goals of
the MA-36I were clear: high power, low
distortion, quiet, cool operation, outstand-
ing sonics and ease of installation not only
with associated Audioaccess components,
but also with other home and commercial
audio distribution systems. The trend
towards use of higher quality and larger
speaker systems for custom installed appli-
cations has created a need for power
amplification offering both true higher
power levels with low distortion. The
MA-36l is a category leading product that
finally addresses the evolution of high
quality custom audio systems.

Main Features

Some of the main features of the MA-36l
include a conservative power rating of
100 Watts per channel into 8 Ohms from
ZOHZ-ZOkHz with all channels driven,
7-band graphic equalization programma-
ble on a per-zone basis, signal sensing,
and voltage triggers to activate main
power in each stereo zone of amplifica-
tion. In normal use, the MA-36i runs

AUDTOACCESS

amazingly cool, thanks to its highly efficient

digital design. A modular layout permits
the installing dealer to easily replace indi-
vidual amplifier modules, should service
ever be required. The MA-361 can be
configured for use in either mono or
stereo operation by means of dip-switch-
es on the rear panel of the amplifier. A
simple bussing scheme allows audio
signals to be routed to a single zone,
selected zones, or all areas. To aid in both
the pre-wiring phase of the project and in
final installation, a speaker termination
board-available separately-allows the
dealer to complete the speaker wiring to
the termination board during the prelimi-
nary phase of the project. Later, upon final
installation, the termination board is then
plugged directly into a slot on the back of
the amplifier, minimizing the chances of
wiring errors within the system.

1-Band Graphic Equalization
The MA-36l 's 7-band graphic equalization

Twelve Channel
mum Amplifier

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capabilities allows the installing dealer to
custom tailor the sound in each zone to

compensate for the different room acoustics
throughout a residence, maximizing the
performance of each pair of speakers.

Signal Sensing and Voltage Triggers
The signal sensing capabilities of the
MA-36I ensure that the amplifiers for a
given zone are only powered on when a
particular area is active, saving on energy
consumption. Voltage triggers allow the
MA-36l to automatically turn on accessory
items such as a fan, or a separate device
when either the amplifier or a designated
zone is activated.

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