FIG. 1 – NX-BAS-500 rear panel
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B. AMPLIFIER
PANEL TOUR
Before actual hookup, you should familiarize yourself
with the connections on the back of the NX-BAS-500,
as shown in Fig.1.
1.
VOLUME CONTROL
. Rotating this knob clockwise
increases the output level of the subwoofer. To start
out, make sure that the VOLUME is turned all the way
down (fully counterclockwise). Later, after some initial
listening tests, you can adjust the volume to your own
taste. However, care should be taken not to overdrive
the subwoofer to the point of audible distortion.
2.
CROSSOVER FREQUENCY CONTROL.
This con-
trol determines what lower part of the frequency spec-
trum will be reproduced by the NX-BAS-500. It is a
“crossover” control. Rotating the knob sets the point
where all lower frequencies will be handled by the
subwoofer.
As a starting point, set the control around 80 Hz (con-
trol half-way, pointing straight up) if you are using left
and right tower speakers, 100 Hz. with bookshelf
speakers, and 120 Hz. with small mini-speakers.
3.
PHASE SWITCH.
This switch is used to set the
subwoofer’s phase to either normal “0°” or reverse
“180°” (out of phase). Once you determine the place-
ment of the NX-BAS-500, you will need to try both
positions of this switch for the best bass output for
your listening position. The physical location of your
subwoofer and main speakers determines the phase
setting that will sound best at your main listening
position. If this requires using the “180°” mode, don’t
worry, there is nothing “abnormal” about it.
4.
POWER INDICATOR.
When the amplifier is ON,
this indicator will be green. When the amplifier is in the
STANDBY mode, the indicator will be red.
5.
ON /AUTO SWITCH.
This switch turns the NX-
BAS-500 on or into AUTO mode. When this switch is in
the AUTO position, the amplifier will stay turned on as
long as a signal is being fed to the subwoofer amplifi-
er. Approximately 5 minutes after you stop playing
music or a video, the amplifier goes into STANDBY
mode – see item 4 above. When you again begin to
play music or a video, the amplifier will automatically
turn on.
6.
LFE /SUBWOOFER/LOW LEVEL LINE IN (line
level connections).
These connections are used if you
have a preamplifier or a receiver/integrated amplifier
which has LFE, subwoofer, or line level outputs that
follow the volume control, or to connect to the line-
level audio output of a flat panel TV.
7.
POWER SWITCH.
Master switch to turn the ampli-
fier ON or OFF.
8.
AC POWER CONNECTOR.
