User manual NAD 7125

[. . . ] section 810 of the National Electrical Code , ANSI/NFPA No. 70-1984, provides information with respect to proper grounding of the mast and supporting structure, grounding of the lead-in wire to an antenna discharge unit, size of grounding conductors, location of antenna discharge unit, connection to grounding electrodes and requirements for the grounding electrode. Secure antenna lead-in and ground wires to house with stand-off insulators spaced from 4-6 feet (1. Mount antenna discharge unit as close as possible to where lead-in enters house. [. . . ] Warning: Make certain that the volume control is turned to minimum (fully anti-clockwise) before connecting headphones. Listening at high levels can damage your hearing. The main speaker outputs (Speaker A) are always active unless headphones are being used. It is motor driven and can be adjusted from the remote control handset. The VOLUME control does not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out). The NAD-71255 is fitted with BASS and TREBLE tone controls to adjust the tonal balance of your system. The 12 o'clock position is `flat' with no boost or cut and a detent indicates this position. The Tone controls do not affect recordings made using the Tape outputs but will affect the signal going to the Pre-amp output (Pre Out). Use the mono switch when the source signal is present only on one of the input channels (left or right) or when receiving weak and hissy stereo FM signals. When the NAD-71255 is put into Mute mode from the Remote Control handset a flashing `MUTE` will be displayed on the left hand side of the display. The 12 o'clock position provides equal level to the left and right channels. Increases or decreases the Volume setting using the motorised front panel Volume control. When tuning on the AM medium-wave band, the frequency changes by increments of 10 kHz in North America or 9 kHz in Europe. The following procedure toggles the tuning circuit between these settings. A ribbon-wire "dipole" antenna may provide adequate reception of strong FM signals. But such an antenna is not very efficient at rejecting "multipath" and other forms of FM interference. And it cannot easily be rotated to optimize its pickup pattern for best reception of stations in different directions. In most cases you can improve reception by using a better antenna. The recommended options, in order of increasing cost, are as follows: (1) A basic "rabbit-ears" indoor TV antenna without auxiliary coils or tuning switches. electrically , such an antenna is just another dipole (similar to the ribbon-wire antenna). But since its tuned elements are made of metal rods, it can easily be rotated. Stretch out each of its two arms to a length of 30 inches (75 cm), and orientate them horizontally or at a shallow angle (less than 45 degrees upward). [. . . ] By removing the metal jumpers (after first switching OFF the POWER), you can connect various signalprocessing accessories in the path between preamp and power amp: an equalizer, a surround-sound processor, a stereo image enhancer, an electronic crossover, etc. To use a signal processor, connect a stereo patch cord from the PRE-OUT jacks to the processor's line-level input jacks, and a second patch cord from the processor's output jacks to the amplifier's MAIN-IN jacks. If you remove the metal jumpers, save them in case you may want to disconnect the signal processor and return to normal operation at a later time. If the jumpers should be lost, a conventional stereo patch cord can be used to connect PRE-OUT to MAIN-IN in each channel. [. . . ]