25
FINE TUNING
The illustrations below describe the various controls. Refer to
The gain control purpose is to match
the output of your source signal to the
detailed instructions.
The Boost Switch will increase the signal
12dB at 45Hz. Be aware this setting can
cause distortion if the gain is not set
properly.
1.
turned down (counter clockwise).
2.
turned down. Make sure the source unit controls; balance, fader, bass and
treble are all set to center or “0” adjustment. Make sure that the green LED on
3.
Play a clean musical selection of which you are very familiar. CD is preferred.
Do not use radio signals for level setting. Hit play and start turning the volume
of the source unit up.
4.
Stop increasing the source unit volume when you reach 3/4 (about 75%) or until
you hear speakers begin to slightly start producing distortion.
5.
the level down (counter clockwise) until the distortion is eliminated. Small
Settings
A
is properly adjusted to match the signal
output level of your source unit.
THIS IS NOT A VOLUME CONTROL!
Level Setting
B
FRONT
L
R
REAR
L
R
INPUT
L
R
GAIN
MIN
MAX
X-OVER
LPF
FULL
1
INPUT
L
R
LEVEL
9V 0.2V
1
2
GAIN Adjustment
BOOST Switch
The Subsonic Filter will cut off the
frequencies below the setting. If using
with a subwoofer, the setting should be
set between 15-25Hz.
3
4
SUBSONIC Adjustment
1
2
3
4
BOOST
0dB 12dB
INPUT
L
R
LEVEL
9V 0.2V
LPF
50Hz 150Hz
SUBSONIC
15Hz 50Hz
Two Channel Amplifier
Mono (Subwoofer) Amplifier
NA2-400.2RC
The Low Pass Filter will cut off the
frequencies above the setting.
LOW PASS Filter
NA2-400.1
FINE TUNING
When setting up your amplifiers you will refer to the manual inside each amplifier. However, through
hundreds of installations, we have determined the settings shown on page 20 are ideal for the STAGE
Tuned Audio Packages.
NOTE
– Gain control, it is important to adjust each amplifier gain as described in the manual. Remember,
these settings are NOT volume controls. Gain controls, properly adjusted help properly balance the system
sound between lows, highs and minimize distortion that comes from the source unit. Listen for a clear, crisp
audio sound. The ideal gain setting should allow full volume from the source unit without audible distortion.
