Filter
Top Products
BassL i nk
®
4sc
5
TUNING BASSLINK II AND 4SC
SETTING THE FRONT SPEAKER AND
SUBWOOFER LEVELS
Note: Refer to page 4, ”Controls and Functions,”
for the location of controls.
1. Turn on the audio system and verify (using
the Balance and Fader controls) that the
speakers and input channels are connected
properly – when the Balance control is turned
to the left, only the left speakers should
play, and when the control is turned to the
right, only the right speakers should play.
BassLink II’s subwoofer should play regardless
of the Fader or Balance control’s position.
2. Turn the Rear Gain (located on the 4sc’s end
panel) and BassLink II’s Gain control (located
on BassLink II’s front panel) all the way
down. Turn the Front Gain (located on the
4sc’s end panel) to 1/4 volume. Only the front
speakers should be playing. Additionally,
turn BassLink II’s Crossover control and Bass
Boost control to their midpoint positions and
set BassLink II’s phase control to the 0° position.
3. Play a dynamic music track with substantial
bass content – Track 5 or 9 on the Phantom
Center Setup CD is suitable – and turn the
source unit’s volume control to 3/4 volume.
4. Turn the Front Gain control up until you
hear slight distortion in the music (fuzzy
or crackling sounds). Then reduce the Front
Gain control slightly until the distortion is
no longer present.
5. Turn the Sub Level control (on the remote
level control) to its maximum output setting
(fully clockwise).
6. While listening to the same track that you
used in step 3, turn BassLink II’s Gain control
clockwise until the servo light (located on
BassLink II’s end panel) begins to flash with
each bass note but doesn’t stay lit continuously.
7. While sitting in the driver’s seat, listen to
your system, making a mental note of the
amount of upper bass being reproduced.
8. Switch the Phase control to the 180° position
and listen again for upper bass content.
There may be more upper bass, less upper
bass or there may be no change. The position
that provides the most upper bass is correct,
but choose either setting according to your
preference.
9. Adjust the Crossover control until you hear
only low-frequency information coming from
BassLink II’s woofer. You should use the
highest (clockwise) position possible that
doesn’t allow any vocal information to be
audible from BassLink II’s woofer (when you
listen in the driver’s position).
10. Adjust the Bass Boost control clockwise or
counterclockwise to suit your preference.
ABOUT THE PHANTOM CENTER CIRCUIT
Note: In order for the Phantom Center to work
properly, the front speakers MUST be connected
in correct polarity. Additionally, some factory-
installed audio systems use extensive and
non-defeatable equalization and channel delay,
which may diminish the effect of the Phantom
Center circuit.
The Phantom Center circuit provides four tuning
selections: Off, 1, 2 and 3. The three settings
process the audio signal differently and provide
optimization for several different car sizes and
front speaker mounting locations. The chart
below indicates switch positions that will
probably sound best for a variety of car sizes
and speaker locations but there is no correct
setting. You should choose the one you like best.
Note: The Phantom Center circuit affects the
midrange speaker only in switch position 1, but
may affect the separate tweeter as well in switch
positions 2 and 3, depending on the tweeter’s
cutoff frequency. If you have separate tweeters
mounted in the tops of the doors or in the
dashboard, and the chart indicates two possible
switch positions, the second position may be
the better choice.
Midrange Speaker Location
car size doors dash kick panel
small 2 2 or 3 3
mid-size 1 or 2 2 or 3 3
large 1 2 2 or 3
Using the Phantom Center Setup CD (included
with your BassLink 4sc) you’ll listen to some
instructions, a spoken setup track and several
music selections to determine the best adjustment
for your system. The first four tracks are spoken
tracks, with Track 3 being the most important
of those tracks. Portions of Track 3 have been
recorded through the equivalent of the Phantom
Center circuit. Listen to Track 3, “Spoken Setup
Track”, and choose the switch position that
provides the best illusion of a person speaking
halfway between the front speakers.
Track 3:
0:00-0:10 Switch in the Off position
0:11-0:21 Switch position 1
0:22-0:33 Switch position 2
0:34-0:47 Switch position 3
0:48-0:60 Rapid switching between
the three positions