Soundstream BX-12 Programming manual

BX-12
Digital Bass Driver
,
Owner s Manual
and
Installation Guide
TECHNOLOGIES
R

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Congratulation!
Model and Serial#
Dealer s Name
Date of Purchase
Installation Shop
Installation Date
CAUTIONS! Prolonged listening at extremely high levels may result in hearing
loss. Even though your car audio system with your new Soundstream BX-12 Digital
Bass Driver sounds better than anything you've ever heard, exercise caution
to prevent hearing damage. ,
Congratulations on purchasingthe BX-12. You are nowthe proud
owner of the finest and most accurate bass enhancing & restoration system available.
Whether your interest is in Beethoven's kettle drums, in Miles Davis' trumpet or in the
percussion of Raplyrics, the BX-12would restore thoselong lost missingbass notes,
with amazing accuracyand clarity.
There's a dash mounted level control unit which permits instant adjustments; whether
it's because your passenger is not as much a "bass-head" as you are or for whatever
reason you wantto turn it down a bit, this handy knob does the trick.
Bass Driver: The BX-12 contains a Bass Driver circuit that accurately recreates and
injects Low frequency information back into the signal path. What that means in everyday
terms is that the BX-12 will give more bass impact to your best compact discs or even
your old tapes.
Bass Equalization Circuit:The BX-12 hasa unique equalization circuit that contours the
restored bass toyour speaker systems.
Dash Mount RemoteControl: The BX-12 comeswith a DashMountable Remote Controlthat
allows you toenjoy the effectsof the BX-12without having toleave the drivers seat. The Dash
Mount Control hasa LED indicator, this LEDwill grow brighter as you add more bass ordimmer
when you decreaseit.
Bass Maximizer Indicator:Not only doesThe BX-12 providegood music toyour ears, but it
also gives yousome visual enjoymentas well. On the Chassis of the BX-12, thereare three
LED indicators thatflashes when thebass maximization circuit is activated.
Features

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PFM Subsonic FilterControl: This unique feature is legendary with its ability tofine tune
the bass responseof any system. Why waste power on nasty subsonicinformation when
PFM Subsonic FilterControl can help you to clean things up?
Bass Output Control:The BX-12 has the ability to produce large amountof deep, mind
shattering bass withoutdamaging your speakers. The Bass Output Control circuit allows
the BX-12 tomaximize the bass output of any autosound audio systemwhile restraining
destructive bursts.
THE OUTSIDE
Functions DIGITAL BASS MACHINE
MAX. BASS CONTROL
BX-12
124
7. Power On LED.
56
7
3
PFM SUBSONIC
FILTER
BASS LEVEL
35Hz 80Hz min max
3a 3b
3a. The PFM SubsonicFilter Control: The BX-12 utilizers aPFM Subsonic Filter
Control which will helpwith speaker control and amplifier power management. This PFM
Subsonic Filter Control setwith frequencies selections from 35Hz-80Hz. On most systems,
setting at 33Hz isfine. If you want to protect your speaker system even more, youshould
try a higher frequency. Often a higherfrequency actually sounds louder and cleaner.
3b. Bass Level Control
2. Outputs: These RCA connectors should be connected to the next component after the
BX-12, such as acrossover, equalizer, or amplifier. Just remember, the BX-12 shouldgo
inline before a crossover.
1. Inputs: The inputs of The BX-12 use a balanced input circuit to helpminimize induced
noise. The are alsodesigned to handle very high signal voltages up to 15 volts.
5. Para-Bass Controls: These 2 knobs controlthe Para-Bass functions ofthe BX-12. The
SWEEP knob allows youto pick the center frequency that you want the BX-12 bass
restoration circuit to maximize.The WIDE knob adjusts how wide of a frequency range the
BX-12 will effect.
6. Bass Maximizer Indicator:These three LED indicators flashes when the bass
maximization circuit is activated.
4. Power Connector
3. Dash Remote Control

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89
UNBAL
Left Right
BAL
200W
ISO
GROUND
10 + v
7.5 v
5 v
2.5 v
10
THE INSIDE
8. Input Grounding: For most systems you can leave this jumper set in the BALANCED
position. In some systems, the source unit may look for a ground through the RCA
connectors. In this event, you should go ahead and change the jumpers to the
UNBALANCED position.
9. Ground Isolation Jumpers: Occasionally alternator whine may appear in a system
because the source unit and amplifier may use different grounding. To help in this
situation, we have provided alternative grounding connections. Made sure your system
is turned OFF before you move these jumpers.
10. Bass Output Control Jumpers: Not all systems are designed the same, some
systems are designed strictly for SPL (sound pressure level) while others are a little
more tame. The Bass Maximizer circuit can either increase or decrease the signal
voltage of the Bass Restoration Circuit. Depending upon your system, you may opt to
change these jumpers to a higher or lower setting to maximize your bass output and
protect your speakers. In most systems the factory setting will suit you fine. We
recommend you try the factory setting first.

Power connection
B+(12V) : Connect a red wire to the car battery or other power source.
REMOTE : Connect an orange wire to remote activating (12V DC)wire of car
stereo or equalizer.
GND : Connect a black wire to the car chassis for ground connection.
ELECTRONIC CONNECTIONS & WIRING
Red
Orange
Black
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PFM SUBSONIC
FILTER
BASS LEVEL
35Hz 80Hz min max
HEAD UNIT
DIGITAL BASS MACHINE
MAX. BASS CONTROL
BX-12

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AMPLIFIER
AMPLIFIER
MIDRANGE
SPEAKERS
SUBWOOFER
Equalizer
Crossover
NOTE: For signal connection, the output RCA connectors should be connected to the
next component after the BX-12, such as a crossover, equalizer, or amplifier. Just
remember, the BX-12 should go inline before a crossover.
SIGNAL CONNECTIONS
PFM SUBSONIC
FILTER
BASS LEVEL
35Hz 80Hz min max
DIGITAL BASS MACHINE
MAX. BASS CONTROL
BX-12

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SPECIFICATIONS
Maximum Input Level
Maximum Output Level
Frequency Response
Total Harmonic Distortion
Signal to Noise Ratio
Balanced Input Noise Rejection
Input Impedance
Output Impedance
Power Supply
Power draw
Recommend fuse rating
15 V rms
13.5V peak
10Hz - 100KHz ; +/-1dB
0.003%
-130dB
>60dB
10 Kohm
150 Ohms
High headroom PWM
150mA
1 Amp
The bass response in a system is affected by four factors:
(1) The acoustics of the vehicle
(2) The locations of the speakers
(3)The music on the tape
(4) Speakers and speaker enclosures.
Because of the variations in the recording process, we developed BX-12 to help restore
any low frequencies lost during the recording process, however, the acoustics of various
environments are different.
The Sweep control allows you to select a center frequency ( the frequency most affected)
between 27 and 63 Hz. TheWidth control then allows you to control the shape of the filter
centered around the Sweep frequency.
The BX-12 is the most powerful bass component. This device equipped with several
different Bass Output selections. If you should need to change the settings, Please use
the chart below for guidance. It is recommended : listen to the factory setting before
changing your Bass Output settings.
SETTING THE BASS OUTPUT CONTROL
Recommended Settings
Setting
2.5Volt
5Volt
7.5Volt
10Volt
Amplifier Input Voltage
3Volt or less
5Volt or less
7.5Volt or less
Oh My Gosh !!!!!!!!!!!!!!!!!
Minimum Speaker Size
8
10
12
ADJUSTING THE PARA-BASS CONTROLS

If the Unit does not turn-on, and / or the power indicator LED is NOT
illuminated, do this:
1) Check and make sure that B+ and GND are not reversed
2) Check that all power wires are properly connected and has
the appropriate potential (11- 16 volts)
3) Check that the fuse is intact.
If you experience high audible distortion or low output volume:
4) Check that the input and output levels are set correctly. Input should
match the source and output should match the sensitivity of the host.
5) Check the crossover settings; make sure they are correct; for high "Q"
systems, set the crossover half an octave above the desired point and
for low "Q" systems, set it 1 octave or more above.
If you experience whining or engine noises:
6) Verify that theGND connection is secure, the conductor (wire) is not too
thin and unnecessarily long.
7) Check that the B+ wire is not too thin and unnecessarily long.
8) Change the power source; try taking power from a different point.
TROUBLE SHOOTING GUIDE
INSTALLATION