ADM - 20.4 Connections

Cable and Jacks

• Push plugs in all the way to make good connections (loose connections can cause noise or malfunctions).
• To prevent interference, keep audio cables away from power cords and speaker cables.

Connecting the AV Receiver

When connecting the ADM-20.4 to AV Receiver, connect the INPUT jacks of the ADM-20.4 to the PRE OUT jacks of the AV Receiver, and connect the front speakers to the SPEAKERS terminals of the ADM-20.4.

Connecting Your Speakers

■ Screw-type speaker terminals
Strip 1/2" to 5/8" (12 to 15 mm) of insulation from the ends of the speaker cables, and twist the bare wires tightly, as shown.

■ Banana Plugs

• If you are using banana plugs, tighten the speaker terminal before inserting the banana plug.
• Do not insert the speaker code directly into the center hole of the speaker terminal.

Note

• Pay close attention to speaker wiring polarity. In other words, connect positive (+) terminals only to positive (+) terminals, and negative (–) terminals only to negative (–) terminals. If you get them the wrong way around, the sound will be out of phase and will feel unnatural.
• Be careful not to short the positive and negative wires. Doing so may damage the power amplifier.
• Make sure the metal core of the wire does not have contact with the power amplifier’s rear panel. Doing so may damage the power amplifier.

• Don’t connect more than one speaker wire to a single speaker terminal. Doing so could damage the power amplifier or cause it to malfunction.

Connecting the Power Cord

1. Connect all of your speakers and components.
   
2. Connect the supplied power cord to the power amplifier’s AC INLET.
   
3. Plug the power cord into an AC wall outlet.

Tip

• To reduce noise, do not tie signal cables together with the power cable. Wire them so that they are away from each other.
• Depending on the country, the power amplifier may be polarity sensitive. In this case, plug the power cord in a way that provides the best sound quality.
  

Note

• Never disconnect the power cord from the power amplifier while the other end is still plugged into a wall outlet. Doing so may cause an electric shock. Always disconnect the power cord from the wall outlet first, and then the power amplifier.
• Turning on the power amplifier may cause a momentary power surge that might interfere with other electrical equipment on the same circuit. If this is a problem, plug the power amplifier into a
  different branch circuit.
• Do not use a power cord other than the one supplied with the power amplifier. The supplied power cord is designed exclusively for use with the power amplifier and should not be used with any other equipment.