Naim-audio NAC-N 172 XS User Manual download pdf (Page 20)

E18

Preamplifier Operation

14.3 Handset Volume and Balance

Control

The remote handset volume and balance keys provide some

alternative control characteristics.

With the NAC 552, NAC 252, NAC 282 and NAC 202 a quick

press and release of a key will adjust by a preset “nudge”. A

quick press and release of a key followed by press and hold will

cause continual slow adjustment.Simple press and hold will

cause continual fast adjustment.

With the NAC 152 XS, a short press and release of a key will

adjust by a preset “nudge”, while pressing and holding the key

will result in three seconds of slow adjustment followed by

continual fast adjustment.

Note: The NAC 152 XS does not incorporate any facility for

channel balance control.

14.4 Mute, Mono and Mon

Mute silences the output signal and can be selected by pressing

the front panel mute button. On preamplifiers equipped with

separate source and record sections Mute can be selected

independently for source and record. Mute can also be selected

from the handset.

Some preamplifiers include a mon (mono) function that sums

the left and right channels. Mono can be selected by pressing

the front panel mon (NAC 552 mono) button. On preamplifiers

equipped with separate source and record sections mono can

be selected independently for source and record. Mono can

also be selected from the handset.

Note: The NAC 202 and NAC 152 XS do not incorporate any

mono facility.

The NAC 202 incorporates a mon (“tape monitor”) function.

Pressing the mon button routes the hdd, av or aux 1 input

signals to the preamplifier output while leaving the input

selection routed to the hdd, av and aux 1 outputs. The mon

function can also be selected from the handset.

Note: Only the hdd, av and aux 1 inputs (those that incorporate

outputs) can be selected when mon is engaged. However, if

one of these inputs carries the source signal, that input will be

unavailable for monitoring.

Note: The record mute function on the NAC 552, NAC 252, NAC

282 and NAC 202 is engaged by default. It can be disengaged

on the NAC 202 by pressing the mute button while mon is

engaged. See Section 10.3.

Note: The NAC 152 XS does not incorporate any front panel

monitor facility.

14.5 Display

The preamplifier front panel button illumination can be

switched off by pressing the remote handset (in preamplifier

mode) disp function. Any subsequent handset or front panel

operation will temporarily restore the display. A second

operation of the disp function will restore the display.

14.6 Switching On

After switch-on, via the power amplifier or power supply power

button, the preamplifier will remain muted for 30 seconds while

control systems and circuits stabilise.

14.7 Defaults

To restore all programmable settings to the factory defaults

press and hold the remote handset disp key while the

preamplifier is in program mode. The preamplifier will exit from

program mode following this operation.

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Naim-audio NAC-N 172 XS User Manual Page 20

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