Speaker Wire Connections; Troubleshooting; Front Panel Power Indicator Is Not Lit; No Sound - Rotel RB-1072 Owner's Manual

RB-1072 Stereo Power Amplifier

Speaker Wire Connections

The RB-1072 has two sets of color coded
terminals for each amplifier channel. Having
two sets of terminals for each channel makes
it easy to biwire the speakers. The speaker
terminals accept bare wire, connector lugs,
or "banana" type connectors (except in the
European Community countries where their
use is not permitted).
Route the wires from the RB-1072 to the
speakers. Give yourself enough slack so you
can move the components to allow access to
the speaker connectors.
NOTE: Be sure to to notice the location of
the LEFT and RIGHT speaker terminals and
connect your LEFT and RIGHT speakers to
the correct outputs. Take extra care if using
two sets of wires to biwire your speakers.
If you are using banana plugs, connect them
to the wires and then plug into the backs of the
speaker connectors. When using banana plugs,
the collars of the binding post terminals should
be screwed in all the way (clockwise).
If you are using terminal lugs, connect them
to the wires. If you are attaching bare wires
directly to the speaker connectors, separate the
wire conductors and strip back the insulation
from the end of each conductor. Be careful
not to cut into the wire strands. Unscrew (turn
counterclockwise) the binding post collar. Place
the connector lug around the shaft, or insert
the bundled wire into the hole in the shaft. Turn
the collars clockwise to clamp the connector
lug or wire firmly in place.
NOTE: Be sure there are no loose wire
strands that could touch adjacent wires or
connectors.

Troubleshooting

Most difficulties in audio systems are the result of
poor or wrong connections, or improper control
settings. If you encounter problems, isolate the
area of the difficulty, check the control settings,
determine the cause of the fault and make the
necessary changes. If you are unable to get
sound from the RB-1072, refer to the sugges-
tions for the following conditions:
Front Panel Power Indicator Is
5
Not Lit
No main power to the RB-1072. Check AC
power connections at the amplifier and the
AC outlet. Check the front panel power switch.
Make sure that it is set to the ON position. If
using 12V trigger power-on, make sure that
a trigger signal is present at rear panel 12V
TRIG IN jack.

No Sound

If the amp is getting AC power, but is producing
no sound, check the PROTECTION INDICATOR
on the front panel. If lit, see below. If not, check
all of your connections and control settings on
associated components. Make sure that your
input connections and speaker connections
match your system configuration.
Specifications
Power Configurations
Watts/Channel
Total Harmonic Distortion (20Hz-20kHz, 8 ohms)
Continuous Rated Power
One-Half Rated Power
One Watt per Channel
Power Output (4 ohms, 0.09% THD)
Output Peak Current
Intermodulation Distortion 60 Hz:7 kHz, 4:1
Damping Factor (8 ohms)
Amp Gain
Input Sensitivity/Impedance
Frequency Response
Signal to Noise Ratio (IHF A)
Power Requirements
USA
Europe
Power Consumption
Dimensions (W x H x D)
Panel Height (for rack mounting)
Weight (net)
All specifications are accurate at the time of printing.
Rotel reserves the right to make improvements without notice.
8

Protection Indicator Is Lit

The front panel PROTECTION INDICATOR
will light when the RB-1072 protection circuits
have shut off the amplifier. Typically, this oc-
curs only when the amplifier has overheated,
when there is faulty speaker wiring, or after
a period of extreme use. Turn off the system
and wait for the amp to cool. Then push the
front panel power switch in and out to reset
the protection devices. If the problem is not
corrected or reoccurs, there is a problem with
the system or the amplifier itself.
2 x 100 watts
100 watts, both channels driven, with 20KHz filter,
8 ohm load, 20-20 kHz, 0.02% THD
< 0.2%
< 0.2%
< 0.2%
190 watts
11A
< 0.2%
200
27.2dB
1.25 V / 9.9 k ohms
10 - 40 KHz (±3dB)
109dB
120 volts, 60 Hz
230 volts, 50 Hz
130 watts
21 watts - Idling
3 watts - Standby
432 x 72 x 350 mm
17 1 / x 2 7 / x 13 3 / in
8 8 4
60 mm, 2 3 / in
8
4.6 kg, 2.1 lb.