Getting Started; Ac Power And Control - Rotel Rb-991 Bedienungsanleitung

Contents
[circled numbers refer to illustration]
Getting Started
A Few Precautions
Placement
AC Power and Control
AC Power Input
Power Switch and
Protection Circuitry
Input Signal Connections
Input Selector Switch
RCA Input Connections
XLR Input Connections
Speakers
Speaker Selection
Speaker Wire Selection
Polarity and Phasing
Connecting the Speakers
Troubleshooting
Front Panel Power Indicator
Fuse Replacement
No Sound
Protection Indicator

Getting Started

Thankyou for purchasingthe RotelRB-991 StereoPower Ampli-
fier. When used in a high-quality musicor hometheater system,
your Rotel amplifier will provide years of musical enjoyment.
The RB-991 is a high-power,two-channel power amplifier,provid
ing the highest level of audio performance.Discreteoutput de-
vices, a massive power supply, premium components, and Rotel's
BalancedDesignensuresuperb soundquality.Highcurrent capa-
bility allows the RB-991 to drive the mostdemandingloudspeakers.
Be aware that the RB-991 is capableof high power levels,in ex-
cess of 200watts per channel.Make sure that your speakerscan
handlethe power of the RB-991. I f in doubt aboutyour speakers,
ask your local Rotel audio retailer for advice.
The RB-991 is straightforward in its installationand operation.If
you haveexperiencewith other stereo poweramplifiers,you
shouldn'tfind anythingperplexing.Plugin a pair of high-quality
RCA cablesfromyourpreamp intothe amplifierinputs,wireup
your speakers,and enjoy.Alternatively,the RB-991 providesan
Power Indicator
0
(ünbalanced)
(balanced)
Is Not Lit
Is Lit
optional pair of balanced inputs for use with preamps or proces-
sors that offer these low-noise XLR-connections. If you choose
this option,you will needto reseta back panel switch selecting
the balanced inputs. Again, nothing very confusing
A Few Precautions
1
Please read this manual carefully, In addition to basic installation
1
and operating instructions, it provides valuable information on
various RB-991system configurations as well as general informa-
tion that will helpyou get optimumperformancefrom your system.
1
Please contact your authorized Rotel audio retailer for answers to
1
any questions you might have. In addition, all of us at Rotel wel-
come your questions and comments.
2
2
Savethe RB-991 shipping carton and all enclosed packingmate-
2
rial for future use.Shippingor movingthe RB-991 in anything
other than the original packing material may result in severe dam-
2
age to your amplifier.
2
2
Fill out and send in the owner's registration card packed with the
RB-991. A lso be sure to keepthe original salesreceipt. It is your
2
best record of the date of purchase, which you will need in the
2
event warranty service is ever required.
3
Placement
3
3
Becauseof its high power output,the RB-991 maygeneratecon-
3
siderable heat. The heat sinks and ventilation openings in the am-
plifier are more than capable of dissipating this heat under normal
3
conditions, but don't smother your amplifier. There must be ad-
3
equate clearance around the chassis. The ventilation slots in the
top cover must be unblocked, and there must be reasonable air-
3
flow aroundthe amplifier.Use commonsensewhen placingthe
3
amplifier in a cabinet or when stacking other equipment.
Likewise,rememberthe weight of the amplifierwhen you select
an installation location.
support its considerable bulk. Again, use common sense.
AC Power
AC Power Input
Because of its high power rating, the RB-991can draw consider-
able current. Therefore,it shouldbe pluggeddirectly into a 2-pin
polarized wall outlet. Do not use an extension cord. A heavy duty
mufti-tap power outlet strip may be used if it (and the wall outlet)
is rated to handle the current demanded by the RB-991and all the
other components connected to it.
Be sure the power switch on the front panel of the RB-991is
turned off (in the out position).Then,connectthe suppliedpower
cord to the AC power outlet.
Make sure that the shelf or cabinet
and Control
English
can