Rotel RMB-1076 owner manual Speakers

7 English

to the inputs for that pair of amplifier chan- nels.

Signal Connections

The RMB-1076 provides standard conventional input connections — unbalanced RCA type connections as found on nearly all audio equipment.

There is also a pair of SIGNAL OUTPUT LINK connections for passing the input signal connected to the “A” pair of channels on to another audio component. Additionally, the input signal to the “A” pair of channels can be automatically linked to the inputs for the “B” and/or “C” channels, so that a separate input signal cable is not required for those channels, for example in large systems where the RMB-1076 is being used to drive multiple pairs of speakers in stereo mode.

component, for example to “daisy-chain” an additional amplifier to drive a second set of speakers.

The input signals connected to the “A” inputs are always available at SIGNAL OUTPUT LINK connections. These input signals can also be linked to the “B” and/or “C” inputs by playing the INPUT SELECT switch associated with that pair of inputs in the LINK position.

Speakers

The RMB-1076 has three groups of speaker connectors, one for each pair of amplifier channels.

Speaker Selection

The nominal impedance of the loudspeaker(s) connected to the RMB-1076 in Stereo mode is a minimum of 4 ohms.

tive conductors and be consistent with every speaker and amplifier connection.

Speaker Connections 0

See Figure 2

The RMB-1076 has two pair of color coded connections for each group of amplifier chan- nels. Labels above the connectors show the proper connections for connecting speakers in Stereo mode.

These speaker connectors 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 RMB-1076 to the speakers. Give yourself enough slack so you can move the components to allow access to the speaker connectors.

RCA Inputs 5

See Figure 2

There are two RCA inputs for each of the three pairs of amplifier channels. These RCA inputs accept audio signals from preamplifiers or sur- round sound processors. Use high quality audio interconnect cables for best performance.

NOTE: You can link the inputs for group “A” to groups “B” and/or “C” by placing the INPUT SELECT switch in the left LINK position. No input connection is required for that group. Placing the switch in this posi- tion leaves that pair of channels in Stereo mode.

Input Level Controls 4

Three controls on the front panel, one for each pair of amplifier channels, provide input level adjustments. These allow you to adjust the gain of the amplifiers to match other components in an elaborate system.

Turn the small knob clockwise to increase gain. Turn the knob counterclockwise to reduce gain.

Signal Output Link 7

Speaker Wire Selection

Use insulated two-conductor stranded wire to connect the RMB-1076 to the speakers. The size and quality of the wire can have an au- dible effect on the performance of the system. Standard speaker wire will work, but can result in lower output or diminished bass response, particularly over longer distances. In general, heavier wire will improve the sound. For best performance, you may want to consider special high-quality speaker cables. Your authorized Rotel dealer can help in the selection of ap- propriate cables for your system.

Polarity and Phasing

The polarity – the positive/negative orientation of the connections – for every speaker and amplifier connection must be consistent so all the speakers will be in phase. If the polarity of one connection is mistakenly reversed, bass output will be very weak and stereo imaging degraded. All wire is marked so you can identify the two conductors. There may be ribs or a stripe on the insulation of one conductor. The wire may have clear insulation with dif- ferent color conductors (copper and silver). There may be polarity indications printed on the insulation. Identify the positive and nega-

If you are using banana plugs, connect them to the wires and then plug into the backs of the speaker connectors. The collars of the speaker connectors 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 speaker connector col- lar. 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.

In Stereo mode: Connect the left speaker to the pair of speaker connectors labeled LEFT. Connect the right speaker to the speaker connectors labeled RIGHT. Follow the labels printed above the connectors, observe cor- rect polarity.

This pair of RCA connections can be used to pass unprocessed input signals to another audio