Soundstream Technologies SPL 45 User Manual

2 Ohm Nominal

Coaxial Speaker

OWNER’S MANUAL

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SPL 45 Coaxial Speaker

Congratulations on your purchase of the Soundstream SPL 45 Coaxial
Speaker. When used with a high quality 2 ohm rated power amplifier,
the SPL 45 will provide exceptional performance.

As with all high quality car audio components, professional installation
is recommended. Your dealer’s knowledge and experience can ensure
a problem-free, cosmetically integrated installation. If you plan on
installing the SPL 45 speaker yourself, please review this Owner’s
Manual first before attempting installation. In addition, it’s a good idea
to keep the manual for future reference.
SPL 45 Serial Number ______________________________________

Date of Purchase ___________________________________________
Date of Installation _________________________________________
Dealer’s Name ____________________________________________

HARDWARE

Before beginning your installation, please check to see that the number
of parts contained in your box match the list below:

CONNECTOR

Hardware

PARTS LIST

8 each - 1” #8 sheet metal screws (for mounting SPL 45)

Connectors

AND

4 each - 1/4” tab female Gold insulated slip-on connectors

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FEATURES

SPL 45 Midrange / Woofer

The SPL 45 is an excellent performer with a combination of high
sensitivity, solid bass and smooth response throughout the audible
range.

• Lightweight Cone designed for good rigidity and high sensitivity

• 2 Ohm Voice Coil for increased voltage sensitivity and higher

output

Hard Dome Neodymium Tweeter

The SPL 45's coaxially mounted tweeter is a high performance 13mm
Neodymium tweeter designed to deliver outstanding high frequency
reproduction.

• 13mm Polyimide dome for improved power handling and linear

response

• Ferrofluid-immersed Voice Coil enhances heat dissipation

• Vented Aluminum Voice Coil Former for superb heat dissipation

and high power handling

Passive Crossover Network

• The crossover consists of high quality, 2 pole design for improved
power handling, lower distortion and better imaging

• Acoustic Summation design combines the crossover with the
speaker's natural roll-off for a steeper slope and increased power

• Dynamic tweeter protection allows for improved power handling
and continuous output

2 Ohm Nominal System Impedance

The 2 Ohm impedance design of the SPL 45 system provides an overall
3 dB increase in output compared to a 4 Ohm design.

•Effectively a doubling of Sound Pressure Level -- with the same
voltage input

•More stable, phase coherent load than two 4 Ohm speakers

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LOCATION

AND

MOUNTING

• The first step in a successful installation is
thorough planning. Choose the location for your
speaker components carefully. Follow these
suggestions to ensure proper imaging and the best
performance:

• Choose a location that offers the least obstruction
of sound to your ears.

• Always check behind the chosen mounting
locations to make sure that there are no
obstructions (e.g., trunk springs, gas tank, window
tracks) or wires in the way, as well as to make
sure that there is ample support on which to
mount the components.

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INSTALLING

THE SPL 45

The SPL 45 can be mounted on the front or rear of
a panel; gaskets are provided for both options. The
bolt hole configuration will fit a variety of American,
European and Asian OEM patterns making it ideal
for direct placement. Best performance is achieved
when the speaker is securely mounted to a door
panel or rear deck. There should be no gaps
between the speaker and the mounting surface, as
this will impair its low frequency performance. Be
certain that both the panel and the speaker are
securely mounted to prevent unwanted vibration.

1) Mark the speaker location by using the
template provided.

2) Cut the opening and debur the edges with a
file.

3) Hold the speaker in place against the mounting
surface and mark the mounting bolt holes.

6) Drill the appropriate size hole for the screws
provided.

7) Place the SPL 45 into the trim ring, make the
speaker wire connections, then install the
speaker/trim ring assembly to the panel using

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WIRING

SPL 45 Wiring Diagram

The figure below shows wiring for the SPL 45 speaker. It is
important to make sure that all connections are in phase; that
is positive (+) is connected to positive (+), and negative (-) is
connected to negative (-) since an out-of-phase connection
will cause a dislocated image and low bass output. We
suggest using premium cable. The connectors provided with
this system will accommodate wire from 12 gauge to 16
gauge.

Head Unit

Amplifier

SPL 45

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SPECIFICATIONS

SPL 45 Specifications

Frequency Response 80 Hz - 20,000 Hz ±3dB
Sensitivity 92 dB SPL at 1 meter (2.83 Volts)

Continuous Power Handling 40 watts
Peak Program Power Handling 80 watts
Nominal Impedance
Crossover Slope Rate 12 dB/octave ASC

Hard Dome Tweeter

Frequency Response 5000 Hz - 20,000 Hz ±3dB
Sensitivity 92 dB SPL at 1 meter (2.83 volts)
Nominal Impedance
Nominal Tweeter Diameter 13mm

98 dB SPL at .5 meter (2.83 Volts)

2Ω

4Ω

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Dimensions

Nominal Driver Diameter 4 1/4”
Mounting Cut-Out Diameter 3 3/4”
Mounting Depth 2 1/8”

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(Rev A, 1/3/97)

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120 Blue Ravine Road  Folsom  California 95630 USA

tel [phone] fax [phone]

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