Ssl SX310 User Manual

 SX310
with Remote Subwoofer Level Control
Congratulations on your purchase
of a Sound Storm Laboratories
signal processor.
К has been designed, engineered
and manufactured to bring you the
highest level of performance and
quality, and will afford you years of
listening pleasure.
Thank you for making
Sound Storm Laboratories your
choice for car audio entertainment!
USER’S MANUAL
page CONTENTS
2 How acrossover is used
2 Installation
3 Electrical and audio connections
3 Getting started
4 Parallel Input System
al Selectable crossover slopes
5 Bass Boost
5 Phase Shift selector
5 Independent channel output
level controls
6 Controls and features
8 Audio connections
11 Power connection
12 Specifications
SX310 User's Manual - page 1
How a crossover is used
The Sound Storm Laboratories SX310
is a high-fidelity signal processor that
allows you to divide a stereo audio
input signal into three separate chan-
nels. The FRONT and REAR controls
incorporate high pass crossovers which
are intended to be used to create mids
or high channels, and the SUB cross-
over is a low pass filter designed to
limit the SUB channel to low frequen-
cies.
All outputs are stereo. For use in sys-
tems where there is a single mono
subwoofer, the SX310 features a circuit
which merges the left and right sub-
woofer channels so that the signal
presented to the left and right subwoof-
er outputs is mono.
A special feature of this crossover is
the Parallel Input System. This capa-
bility allows you to create a stereo
three-way system with only a L/R ste-
reo input.
For improved time alignment, the sub-
woofer channel also features a selector
for switching the subwoofer output
signal phase.
This crossover intended for use in a
car audio system which includes am-
plifiers in the signal path after the head
unit.
SX310 User's Manual - page 2
Installation
Choose a mounting location where the
unit will not distract or otherwise
interfere with the driver's ability to
control the vehicle.
Use only the installation parts and
hardware provided with the unit to
ensure proper installation. Using other
parts can cause malfunction and
possible damage to your crossover.
Avoid installing the unit in a location
which is subject to high temperatures,
direct sunlight, hot air from such
sources as heaters or exhaust lines,
or where it will be subject to contact
with dust, dirt, moisture or excessive
vibration.
Electrical and audio
connections
Using the screw terminals provided,
connect the following wires:
+12V:
Use a minimum 16GA wire and
connect it directly to the vehicle’s (+)
battery terminal, with a inline 3A fuse
within 18 inches of the battery.
GND (Ground):
Use a minimum 16GA wire and
connect it to a clean, solid chassis
ground point as close to the crossover
as possible.
REM (Remote):
Use a minimum 16GA wire and
connect it to the Remote Turn-On lead
of your head unit.
Audio Cables:
Use high quality RCA cables. Make
connections as shown in the diagram
shown elsewhere in this manual.
Getting started
Before powering up your system:
1) recheck all connections
2) set all level controls to the minimum
positions
3) set all crossover controls and
switches to the desired positions.
Power up your system and set the
volume control on your head unit to a
moderate level (typically this is a level
where you can still have a normal
conversation and be heard over the
audio). You may need to further fine
tune the system to suit your taste.
SX310 User's Manual - page 3
Parallel Input System
A unique feature built into the Sound
Storm Laboratories SX310 is a very
flexible input selector system called
the Parallel Input system.
It is controlled by a selector switch
located on the main panel above the
FRONT crossover section.
When the switch is in the OUT position,
the front stereo input signals are also
sent to the REAR crossovers.
In addition, if you set the SUBWOOFER
INPUT MODE SELECTOR switch to
the ON position, the front stereo input
will also be delivered to the SUB cross-
over.
By using this feature cleverly, you can
create a very sophisticated 3-way audio
system with only a pair of stereo inputs
from your head unit.
SX310 User's Manual - page 4
Selectable crossover slopes
The crossovers for both the front and
rear channels feature selectable
crossover slopes. The slope of a
crossover describes how steep the
sound level dropoff is surrounding the
crossover frequency you select.
The SX310 gives you a choice of 6dB
or 12dB per octave dropoff. An octave
change in frequency is defined as a
doubling of frequency.
For example, if your high pass (front)
crossover slope is set to 6dB and the
crossover frequency is set to 1kHz,
you can expect that the level of audio
output at 500Hz would be 6dB less
than at 1kHz. Similarly, at 250Hz you
would expect it to be 12dB less, and
so on.
Being able to choose the slope can
be useful. If your speaker elements all
have somewhat narrow, but
overlapping frequency response
ranges, you may be able to use a steep
slope setting, like 12dB per octave.
This way you can choose the same
crossover frequency for your highs
and mids and not worry about the
audio portions outside the range of
your speakers adding distortion.
Conversely, if your speaker elements
have wide areas of overlapping
frequency response ranges, you can
use a shallow slope like 6dB/octave
and attain a very smooth transition
between all speakers in your system.
Bass Boost
Bass Boost is a popular feature for car
audio systems. Sound Storm
Laboratories take it to the next level
by allowing you to custom-tune the
center frequency for the boost.
When you set the center frequency for
Bass Boost, you are directing the
crossover to focus the boost at that
frequency, at the dB level you set for
the Bass Boost.
By setting the frequency at the center
of the frequency response range of
your woofer, you know that the boost
will hit hardest at the right frequency
with the least amount of distortion.
Phase Shift Selector
Depending on the physical nature of
your subwoofer, the type of enclosure
(if any), and how far it is located from
the other speakers, it is possible that
the sound from the subwoofer is “out
of phase” with the other speakers.
This means that the sound waves are
overlapping in such a manner as to
cause some cancellation which can
compromise the sound quality.
Also, if your vehicle is large and there
is a lot of distance between the subs
and the other speakers, the audio from
the subs might be arriving a little bit
“late,” which can affect the “spatial
imaging” of the music.
To help with this, Sound Storm
included a Phase Shift selector . If you
suspect that your speaker system is
out of phase, just flip this switch and
the problem will probably go away.
Independent Channel Output
Level Controls
The SX310’s independent output level
controls for the three channels gives
you the ability to really improve the
spatiality of the system by getting just
the right sound levels in each range of
the frequency spectrum.
Of course, when you need to add some
punch to the bass, you don’t need to
open the trunk and change the setting
— just use the Remote Subwoofer
Control for doing it on the fly.
SX310 User's Manual - page 5
Controls and features
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(1) L/R SUB AUDIO INPUTS
(2) L/R REAR AUDIO INPUTS
(3) L/R FRONT AUDIO INPUTS
SUBWOOFER CROSSOVER
FREQUENCY CONTROL
Use this to select the frequency range
sent to the subwoofer outputs. The
selected frequency is the highest
frequency which will be reproduced
by the subwoofer(s).
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BASS BOOST FREQUENCY
Use this control to set the center
frequency for the Sub channel bass
boost feature.
BASS BOOST CONTROL
This control allows you to increase the
level of the bass up to +12dB./
PHASE SELECTOR
Select the phase of the subwoofer
output channel(s) for best time alignment
and imaging.
SUB STEREO/MONO SELECTOR
For systems where you need stereo
SUB INPUT SOURCE SELECTOR
If there is no dedicated subwoofer
channel input available from your head
unit, put this switch in the ON position
to deliver the signal on the front inputs
to the sub channel path.
SX310 User's Manual - page 6
subwoofer outputs, choose STEREO.
For all others choose MONO.
SUBWOOFER OUTPUT LEVEL
Use to independently increase or
decrease output gain for this channel.
Controls and features, continued
(11) L/R SUB AUDIO OUTPUTS
43
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47
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REMOTE SUBWOOFER LEVEL
CONTROL JACK
L/R REAR AUDIO INPUTS
L/R FRONT AUDIO INPUTS
FUSE
Power Connections:
+12V
REMOTE
GROUND
PARALLEL INPUT MODE
SELECTOR
If you only have a stereo input signal,
putting this switch in the OUT position
sends a copy of the front input signal
to the rear crossover path. If a
dedicated rear signal input is
connected, be sure to put thi sin the
IN position.
POWER INDICATOR
HIGH PASS CROSSOVER
FREQUENCY MULTIPLIER SWITCH
This switch raises the frequency range
available for the high pass crossover
from 32-250Hz to 640-5kHz.
FRONT HIGH PASS CROSSOVER
FREQUENCY CONTROL
Sets the crossover frequency for the
front (high pass) crossover.
REAR HIGH PASS CROSSOVER
FREQUENCY CONTROL
Sets the crossover frequency for the
rear (high pass) crossover.
24) SLOPE SELECTORS
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29)
22
These selectors permit you to choose
the slope of the filter effect at the
frequencies you have selected (+6dB
or +12dB/octave).
FRONT OUTPUT LEVEL
Use to independently increase or
decrease output gain for this channel.
REAR OUTPUT LEVEL
Use to independently increase or
decrease output gain for this channel.
SX310 User's Manual - page 7
Audio connections: 2-Channel Stereo System
In this system, the head unit is providing a stereo channel pair.
Place Subwoofer input
switch in ON position
to enable Subwoofer
channel receive front
input signal.
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For this system, set the
PARALLEL INPUT SWITCH
to the OUT position to
deliver the front input signal
HEAD UNIT AUDIO OUTPUTS
FRONT R/L
to the other channels.
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SUB OUTPUT LEVEL LEVEL LEVEL
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Subwoofers
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SX310 User's Manual -
page 8
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Audio connections: 4-Channel Stereo Front/Rear System
In this system, the head unit is providing independent Front and Rear
Channel signals.
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SX310 User's Manual - page 9
Audio connections: 6-Channel Stereo Front/Rear/Sub System
In this system, the head unit is providing independent Front, Rear and
Subwoofer Channel signals.
For this system, set the
Place Subwoofer O)! | PARALLEL INPUT SWITCH to
input switch in OFF the IN position (since there is
position (since there О В À Y О | Y are rear and subwoofer
are subwoofer inputs | EAD UNIT AUDIO OUTPUTS channel inputs available
available directly SUBWOOFER АЛ. REAR ВЛ. FRONT R/L р
directly from the head unit).
from the head unit). д A д
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2/3 WAY
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SUB OUTPUT LEVEL LEVEL LEVEL
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SUB OUT REMOTE REAR OUT FRONT OUT POWER
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SX310 User's Manual - раде 10
Power and Remote Level Control connections
Please note that this crossover contains an internal ON/OFF switch, which is
activated when the head unit is turned on. For this reason, in order to use this
crossover, your head unit must have a remote-turn on lead.
HEAD UNIT to REMOTE TURN-ON
terminal of head unit
OOo III] \
+12V REMOTE GROUND
BLACK \
wire
Chassis ground point
\ 7 REMOTE SUBWOOFER GU ORANGE wire Y
LEVEL CONTROL
SX310 User's Manual - page 11
Specifications
SX310
S=3
2/3 Way Electronic Crossover with Remote Subwoofer Level Control
Front channel:
High pass crossover frequency
Range 1 (multiplier setting = 1x)
Range 2 (multiplier setting = 20x)
Crossover slope
32Hz-250Hz
640Hz-5kHz
selectable: 6dB or 12dB/octave
Rear channel:
High pass crossover frequency range
Crossover slope
40Hz-400Hz
selectable: 6dB or 12dB/octave
Subwoofer channel:
Low pass crossover frequency range 40Hz-400Hz
Bass Boost frequency range 25Hz-250Hz
Bass Boost level +12dB
Signal-to-noise ratio 110dB
THD less than 0.01%
Channel separation 80dB
Power supply (DC-to-DC switching type)
Output voltage
Input impedance
Output impedance
Output gain
Dimensions (W x D x H)
10-16V negative ground
8V max
20k Ohms
100 Ohms
1:2 (+6dB)
8.5” x 7.38” x 1.63”
All specifications subject to change without notice.
$X310 User’s Manual - page 12