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If you are using terminal lugs, connect them to the wires. If you

are attaching bare wires directly to the binding posts, separate

the wire conductors and strip back the insulation from the end of

each conductor. Be careful not to cut into the wire strands. Un-

screw (turn counterclockwise) the binding post hexagonal thumb-

screws. Place the connector lug or wire around the binding post

shaft. Turn the hexagonal thumbscrews 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.

Bridged Mono Operation

[See Figure 3 for bridged operation connection illustration.]

The channel pairs of the RB-976 can be “bridged”. In this configu-

ration the single channel produces a massive 150 watts! This fea-

ture allows you to increase the overall power output of your

system by bridging the channel pairs of the RB-976 and adding a

second RB-976 that also has bridged channel pairs. Or one of the

RB-976 channel pairs may be bridged to drive a monophonic sub-

woofer. Note however that when one of the RB-976 channel pairs

is bridged the speaker connected to it must have an impedance of

8 ohms or more.

Note: Turn off all the system components before you change any

signal connections or the setting of the Input Selector Switches.

To bridge one of the RB-976 channel pairs move the Input Selector

Switch for that channel to the “Bridged” position.

Input Connection

When using one of the RB-976 channel pairs in bridged mono

mode, connect the cable from the preamplifier or signal processor

output to the left input of the channel pair. No connection is made

to the right input.

Bridged Speaker Connection

When using one of the RB-976 channel pairs in bridged mono

mode, the wire to the speakers is connected to the positve termi-

nals of the left and right channels. Connect the wire that goes to

the postive terminal of the speaker to the positve terminal of the

left channel of the channel pair. Connect the wire that goes to the

negative terminal of the speaker to the positve terminal of the

right channel of the channel pair. No connections are made to the

negative terminals.

Troubleshooting

Most difficulties in audio systems are the result of incorrect con-

nections, or improper control settings. If you encounter problems,

isolate the area of the difficulty, check the control settings, deter-

mine the cause of the fault and make the necessary changes. If

you are unable to get sound from the RB-976, refer to the sugges-

tions for the following conditions:

Front Panel Power Indicator Is Not Lit

No main power to the RB-976. Check the front panel power

switch. Make sure that it is set to the on position. Check AC power

connections at the amplifier and the AC outlet.

Fuse Replacement

If everything checks out correctly and you still cannot get the am-

plifier to turn on, the internal power fuse may have blown. If you

believe this has happened, contact your authorized Rotel dealer

to get the fuse replaced.

No Sound

If the amp is getting AC power, but is producing no sound, check

the Channel and Bridged Mono indicator lights on the front panel.

Then check all input and output connections to be sure they are

correct. Finally check the connections to, and the control settings

of, the associated components.

SIX CHANNEL POWER AMPLIFIER RB-976

1 2 3 4 5 6 7 8 9 10

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