5
About Rotel
A family whose passionate interest in music led
them to manufacture high fidelity components
of uncompromising quality founded Rotel over
40 years ago. Over the years that passion
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 reviewers 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
of enjoyment.
Getting Started
Thank you for purchasing the Rotel RB-1091
Mono Power Amplifier. When used in a high-
quality music or home theater system, your
Rotel amplifier will provide years of musical
enjoyment.
The RB-1091 is a sophisticated single-channel
power amplifier. It’s digital amplifier circuitry,
switching power supply, premium components,
and Rotel’s Balanced Design ensure superb
sound quality. High current capability allows
the RB-1091 to drive difficult speaker loads
with ease.
Operating Features
• Single channel amplifier.
• User selectable power on/off configuration:
manual or controlled by remote 12 volt
trigger signal.
• Protection circuitry with front panel indica-
tor.
• Dual binding post and Speakon
®
speaker
output.
A Few Precautions
Please read this manual carefully. In addition to
installation and operating instructions, it pro-
vides information on various RB-1091 system
configurations. Please contact your authorized
Rotel dealer for answers to any questions you
might have. In addition, all of us at Rotel wel-
come your questions and comments.
Save the RB-1091 shipping carton and packing
material for future use. Shipping or moving the
RB-1091 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 RB-1091 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.
English
Contents
Important Safety Information ................. 2
Figure 1: Controls and Connections
3
Figure 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
9
6
Power Switch and Indicator
12
6
Turn On/Off Mode Selector
7
6
+12V Trigger Input and Output
8
6
Protection Indicators
3
........................ 6
Input Signal Connection
4
..................... 6
Speaker Connection ................................ 7
Speaker Selection
7
Speaker Wire Selection
7
Polarity and Phasing
7
Conventional Speaker Wire Connections
5
7
Speakon
®
Speaker Connection
6
7
Troubleshooting ...................................... 8
Front Panel Power Indicator Is Not Lit
8
No Sound
8
Protection Indicator Is Lit
8
Specifications ......................................... 8
