FRONT PANEL
The Soundavo
MZ series
multichannel power amplifiers are ideal for use in adding additional
power in distributed audio systems or combining with the commercial sound installation, home
theater applications. The MZ-850S provides 8 channels, MZ-1250S provides 12 channels and
MZ-1650S provides 16 channels of digital amplifications. All models designed in great features
such as bridge mode operation, global and independent zone triggering, audio sense circuitry
with delay time per zone, two Bus Inputs/Outputs and independent line inputs per zone to meet
the wild range of audio applications and projects.
All amplifiers are rated at 50 watts per channel into 8 ohms and 80 watts per channel into 4
ohms. With the Stereo/Bridge switch in the Bridge mode, each zone of channels are combined
for a higher powered mono output of 160 watts into 8 ohms. With the high performance and
ultra-low distortion output, MZ series amplifiers provide the excellent of sound quality for the
audio systems.
INTRODUCTION
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2
THERMAL PROTECTION
All MZ series amplifiers are designed with special circuitry to safeguard the amplifier under a
thermal overload condition. Thermal protection mode will only engage when the unit has been run
at high volume for extended periods of time without adequate ventilation and/or when speaker
impedances are below the minimum levels for the amplifier. In thermal protection mode the
amplifier will automatically stop output. If this fault occurs, turn off the amplifier, and check that the
speaker impedance rating is above the minimum rating. Also check for adequate ventilation
around the amplifier and make adjustments if necessary. Once the unit has cooled to sage
operating temperatures, the amplifier may be powered back on.
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PROTECTION CIRCUITRY
INSTALLATION
Special circuitry has been designed into the amplifier to safeguard under a short-circuit condition.
A faulty speaker can also cause a short circuit condition. The Zone LED will blink rapidly between
Red and Blue If this fault condition occurs, turn off the amplifier and check speakers for short
circuit conditions when appropriate.
The amplifier can be placed on a shelf in an equipment rack, or on a table or cabinet. Be sure the
required clearances for ventilation and heat dissipation. The amplifier will take two rack spaces
with the feet removed.
1. Power/Standby LED
This LED lights red when any zone is active or
the amplifier is in standby mode.
2. Zone LED
Blue: the corresponding zone is powered on.
OFF: the corresponding zone is off (standby mode).
Red/Blue: A short circuit happens on the speaker outputs.
