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About Rotel
A family whose passionate interest in music led
them to manufacture high fidelity components
of uncompromising quality founded Rotel over
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has remained undiminished and the goal of
providing exceptional value for audiophiles
and music lovers regardless of their budget,
is shared by all Rotel employees.
The engineers work as a close team, listening
to, and fine tuning each new product until it
reaches their exacting musical standards. They
are free to choose components from around the
world in order to make that product the best
they can. You are likely to find capacitors from
the United Kingdom and Germany, semicon-
ductors from Japan or the United States, and
toroidal power transformers manufactured in
Rotel’s own factory.
Rotel’s reputation for excellence has been
earned through hundreds of good reviews
and awards from the most respected review-
ers in the industry, who listen to music every
day. Their comments keep the company true
to its goal – the pursuit of equipment that is
musical, reliable and affordable.
All of us at Rotel thank you for buying this
product and hope it will bring you many hours
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Getting Started
Thank you for purchasing the Rotel RMB-1085
Five-Channel Power Amplifier. When used in
a high-quality music or home theater system,
your Rotel amplifier will provide years of
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The RMB-1085 is a sophisticated five-channel
power amplifier. Its digital amplifier circuitry,
switching power supply, premium components,
and Rotel’s Balanced Design ensure superb
sound quality. High current capability allows
the RMB-1085 to drive difficult speaker loads
with ease.
Operating Features
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manual, or controlled by remote 12 volt
trigger signal.
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tor.
A Few Precautions
Please read this manual carefully. In addition
to installation and operating instructions, it
provides information on various RMB-1085
system configurations. Please contact your
authorized Rotel dealer for answers to any
questions you might have. In addition, all
of us at Rotel welcome your questions and
comments.
Save the RMB-1085 shipping carton and
packing material for future use. Shipping or
moving the RMB-1085 in anything other than
the original packing material may result in
severe damage to your amplifier.
Be sure to keep the original sales receipt. It
is your best record of the date of purchase,
which you will need in the event warranty
service is ever required.
Placement
The RMB-1085 generates heat as part of its
normal operation. The heat sinks and ventila-
tion openings in the amplifier are designed to
dissipate this heat. The ventilation slots in the
top cover must be unobstructed. There should
be 10 cm (4 inches) of clearance around the
chassis, and reasonable airflow through the
installation location, to prevent the amplifier
from overheating. Likewise, remember the
weight of the amplifier when you select an
installation location. Make sure that the shelf
or cabinet can support its weight.
Contents
Important Safety Information .........................2
1: Controls and Connections 3
2: Input and Output Connections 4
About Rotel ...................................................5
Getting Started ..............................................5
Operating Features 5
A Few Precautions 5
Placement 5
AC Power and Control ....................................6
AC Power Input
6
Power Switch and Indicator
6
Turn On/Off Mode Selector
6
+12V Trigger Input and Output
6
Protection Indicator
..................................6
Input Signal Connections
...........................7
Speakers .......................................................7
Speaker Selection 7
Speaker Wire Selection 7
Polarity and Phasing 7
Speaker Connections
7
Troubleshooting ..............................................8
Front Panel Power Indicator Is Not Lit 8
No Sound 8
Protection Indicator Is Lit 8
Specifications .................................................8