7
(Refer to Fig. 5 below)
1. IMPORTANT: Make sure that ALL system components including the
NX-BAS-500 are turned OFF before proceeding.
2.
Connect a set of high-quality line level connection cables (patch cords)
between the TV analog audio output connectors and the LINE IN sockets
on the back of the NX-BAS-500. Make sure that left is connected to left
and right is connected to right.
3.
You are now ready to put your NX-BAS-500 subwoofer into use.
Skip to “E – INITIAL LISTENING TEST.”
Method C: Line level hookup steps
for flat panel TVs
It’s now time to introduce the NX-BAS-500 amplifier’s potent and plentiful
bass into your listening environment.
1.
Double-check all connections.
2.
Make sure that the volume controls on both the NX-BAS-500 and
your receiver/integrated amp/preamp/TV are turned all the way down
(fully counterclockwise). Set the PHASE switch to zero. Set the CROSS-
OVER FREQUENCY knob to 80 Hz for normal operation, or to 120 Hz for
Dolby Digital operation where the proper crossover frequency is set in the
receiver’s crossover.
3.
Turn on your stereo/home theater system. THEN turn on the NX-BAS-
500. Confirm that the subwoofer’s green POWER indicator is glowing. If it
isn’t, check the power connections between the NX-BAS-500 and the wall
socket.
4.
Play a musical selection or DVD that you are familiar with. Pick a
song that has regular low bass beats. Advance the receiver/ integrated
amp/preamp/TV’s volume control up to a normal listening level. If you
don’t hear sound through your main speakers, turn off the system and
check connections. Also consult the troubleshooting tips on page 8.
5.
If sound is indeed coming out of your main speakers, turn the NX-BAS
500’s VOLUME control clockwise until you hear noticeable additional
bass. If you don’t hear bass by the time you have advanced the sub-
woofer’s VOLUME control halfway, turn off the system and check con-
nections. Also consult the troubleshooting tips on page 8.
6.
Adjust the NX-BAS-500’s VOLUME control until you are satisfied with
the amount of bass. You may want to try several different albums, com-
pact discs, or DVDs while determining how high to adjust the NX-BAS-
500’s VOLUME. The amount of bass varies from CD to CD and DVDs.
7.
Now that you have adjusted the
quantity
of bass via the volume, it’s time
to work on the
quality
of the bass with the CROSSOVER FREQUENCY
control, PHASE switch – and experimentation with NX-BAS-500 room
position.
• While playing music or a movie, move the subwoofer around, in and out
of corners, closer and farther from the wall, etc. as much as the power
cord and other connections will allow.
• Change the PHASE switch between 0° - 180°, while someone sits
in the main listening position. Leave the switch in the position where you
like the bass most.
• Change the CROSSOVER FREQUENCY control (for Dolby Pro-Logic
receivers) to higher and lower settings. If the CROSS-OVER FREQUENCY
control is set too high, you’ll start to hear low midrange (voices and
instruments) through it. This will negatively affect the stereo imaging of
your main speakers. Lower the CROSSOVER FREQUENCY setting until
you hear only bass from the NX-BAS-500. If the CROSSOVER FRE-
QUENCY control is set too low, you simply won’t get much output from
the subwoofer. Move it back closer to 80Hz.
8.
After you are satisfied with the output of your NX-BAS-500, you can
make all your volume settings through your main stereo system’s volume
control. The only time you might want to re-adjust the NX-BAS-500’s VOL-
UME is when you encounter a musical selection or movie that has abnor-
mally low – or high – bass.
You can leave the NX-BAS-500 turned on and in AUTO mode when not
in use. It does not draw much power in this state and will be ready to add
low bass the moment you begin to play music.
Remember, you don’t have to do anything except leave the POWER switch
in the AUTO position. The NX-BAS-500 will automatically go into STANDBY
mode after approximately 5 minutes, when no music or movie is playing.
If you’re not using your system for a long period of time (such as when
you’re on vacation), turn the MASTER POWER switch to the OFF position.
E. INITIAL LISTENING TEST
FIG.5 – Method C, Line Level Hook-up with Flat Panel TV
