User manual NAD 533

[. . . ] The unit may fall, causing serious injury to a child or adult and serious damage to the unit. Use only with a cart, stand, tripod, bracket or table recommended by the manufacturer or sold with the unit. Any mounting of the device on a wall or ceiling should follow the manufacturer's instructions and should use a mounting accessory recommended by the manufacturer. An appliance and cart combination should be moved with care. [. . . ] Connections to each binding post may be made in several ways as follows. The threaded shaft of each binding post contains an opening that accepts pin connectors up to 3mm in diameter. unscrew the plastic bushing on each terminal to expose the hole in the metal shaft. Insert the pin connector through the hole, and turn the bushing clockwise until it is tight. Unscrew the plastic bushing, insert the U-shaped spade lug into the oblong gap and tighten the bushing down on it. Separate the two conductors of the cord (if they appear as a pair), and strip off a half-inch (1cm) of insulation from each. In each conductor, twist together the exposed wire strands. Unscrew the plastic bushings for + and -, insert the bare wire through the hole in the metal shaft, and tighten the plastic bushing until it grasps the wire securely. Check to be sure that no loose strand of wire is touching the chassis or an adjacent terminal. Re-tighten the bushing after a week or so to make sure that any play that may have developed is eliminated. The NAD 533 comes supplied with a separate AC Mains cable. If your speakers are easily moved, their phasing can easily be checked. Make the connections to both speakers, place the speakers face-toface only a few inches apart, play some music, and listen. Then swap the connection of the two wires at the back of ONE of the speakers, and listen again. The connection which produces the fullest, boomiest bass output is the correct one. Connect the wires securely to the speaker terminals, being careful not to leave any loose strands of wire that might touch the wrong terminal and create a partial short-circuit then move the speakers to their intended locations. If the speakers cannot easily be set face-to-face, then phasing must rely on the "polarity" of the connecting wires. The speaker terminals on the amplifier are identified as red (+) and black (-) in each channel. The terminals at the rear of the speakers are also marked for polarity, either via red and black connectors or by labels: "+", "1", or "8 ohms" for positive, "-", "0", or "G" for negative. The red (+) terminal on the amplifier should be connected to the red (positive) terminal of the speaker in each channel. To facilitate this, the two conductors comprising the speaker wire in each channel are different, either in the colour of the wire itself (copper vs. silver) or in the presence of a small ridge or rib pattern on the insulation of one conductor. [. . . ] For convenience it may be left ON at all times. The blue LED glows when the power is on and the amplifier is ready for use. This switch "bridges" the two channels together, forming a monophonic amplifier with more than double the output power. To convert to bridged operation, the following procedure should be followed. [. . . ]