NAD S170iAV - Manual (Page 22)

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22
USING THE S170i
You may operate the S170i preamplifier equally from its front panel or via the HTR 2 remote controller.
Since the remote will be the primary controller for most cases, we will focus on remote-controlled
operations. Be sure to read the section, “Front Panel Operations,” below.
SELECTING SOURCES
From the HTR 2 select[AMP]; then use the numeric keys [1 - 10+] also labelled in the same color red as
the [AMP] key for [DVD], [SAT], [VCR], VIDEO ], etc. to select directly those sources.
NOTE THAT:
• When an audio-only source is selected, the most recently-selected video signal remains selected, until
another audio-video input is selected
• When you change sources, the OSD will, depending on the Display setup settings (above) momentarily
show information about the new input. The level of detail depends on the setting of the <Temporary
disp.> item: “Full” will show all information about the newly selected input’s audio, digital, and video
signals; “Simple” will show only the new input name, and “Off” will prevent any display from
appearing.
• A newly selected input’s listening mode (Stereo, EARS, Dolby Digital, etc.) will revert to the mode that
was employed the last time that input was chosen, except that a multi-channel digital source (Dolby
Digital or DTS) source will automatically switch to 5.1/6.1-channel surround, even if the input was last
used in another mode such as Stereo or EARS.
• The Ext5.1 input participates in the S170i’s source “rotation” like any other audio-only source.
However, since the Ext5.1 input is a “straight-through” source it does not receive bass-management,
tone-control, or any other preamp functions; signals appearing at the rear panel’s EXTERNAL 5.1
INPUTS pass directly to the corresponding six of the PREAMP ANALOG 7.1 OUTPUTS jacks with no
processing other than master-volume control. Bass-management and any other desired processing
should be performed by the multichannel external source component.
There is an adjustable INPUT LEVEL CONTROL for the analog sources with an INPUT LEVEL METER to make
adjustment easy and accurate. This circuit will automatically adjust the individual input to prevent overload
of the A/D converter (converter of analog signals to digital, for surround processing) and does not require
the user to make any adjustments. But you may want to adjust the input level manually so that each
source plays at the same subjective loudness level. Since the automatic adjustment only looks at peak
signals, sources with a wide dynamic range (classical music CDs) will sound subjectively softer than sources
with a narrow or compressed dynamic range (rock music radio broadcasts).
To adjust INPUT LEVEL, first enter the OSD (On Screen Display) by pressing the RIGHT CURSOR KEY and
scroll down to SOURCE SETUP with the DOWN ARROW KEY and press ENTER.
From the SOURCE SETUP MENU select ANALOG SENSITIVITY and use the RIGHT/LEFT CURSOR KEY to
adjust the INPUT LEVEL. The range of adjustment is -5dB to +10dB. You can also select ANALOG MON
to view a vertical bar graph display (with Peak Hold function) of input level. In this mode use the
UP/DOWN CURSOR KEY to expand the meter scale from -20dB to 0dB, to -40dB to 0dB.