SERVICE
Your Soundstream
amplifier is protected by a limited warranty.
Please read the enclosed warranty card for details.
Stereo
Bridged)
(12.6 Vdc)
1
Stereo
Bridged)
112 Stereo
(1 Bridged)
(14.4
Maximum
Rated
output
Stereo
Bridged)
(14.4 Vdc)
POWER (8
(4
Bridged)
(2
(14.4 Vdc)
(14.4 Vdc)
Class A
5.2
x 2
x 1)
x2
x 1)
250W x 2
x 1)
x2
xl)
250W x 2
x 1)
500 Watts
Class A
10.2
x2
x 1)
250W x 2
x 1)
500W x2
x 1)
1000 Watts
x 1)
x 1)
THD
%
Signal to Noise
Frequency Response
Stereo Separation
Damping
20 Hz to 20
0.5
Input Sensitivity
300
to 5.0 Volts
Input Impedance
1 Ok Ohms
Hawkins Bass Control
Sub Sonic Filter: No boost, High Pass filter from 13 to 30 Hz.
Class A
Hawkins Bass Control: 0 to
Boost; Boost and Sub Sonic filter,
variable from 30 to 70 Hz.
Dimensions (W x D x H)
5.2
Class A 5.2:
13.0” X 9.8” X 2.25”
Class A 10.2: 15.0” X 9.8” X 2.25”
Power Amplifiers
SOUNDSTREAM
Owner’s Manual
and
Installation Guide
T
E
E
H
N
L
SOUNDSTREAM TECHNOLOGIES
120 Blue Ravine Road
ph 916.351.1288
California 95630 USA
fax 916.351.0414
l
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Table of Contents
You now own a Soundstream
an uncompromising design and engineering philosophy. Your Soundstream
CLASS A amplifier will outperform any other amplifier in the world.
CLASS A amplifier, the product of
.............................................................
Design Features
..............................
Class A Amplifier Diagram
To Maximize the performance of your system, we recommend that you thor-
oughly acquaint yourself with its
manual and your sales receipt for future reference.
and features. Please retain this
p 8 9
......................
Theory and Use
iawkins Bass
Soundstream amplifiers are the result of American innovation and the high-
est quality control standards. When properly installed, they will provide you
with many years of listening pleasure. Should your amplifier ever need ser-
vice or replacement due to theft, please record the following information which
will help protect your investment.
...............................
nstallation: Speaker Output Modes
Balanced Unbalanced Inputs . . . . . . . . . . . . . . . . . . . . p 11
Installation:
....................................
Installation: Wiring and Diagram
Model and Serial #
Dealer’s Name
.....................................................
Installation: Mounting
p 14
..................
Installation: Level Setting and Front Spoiler.
Date of Purchase
Installation Shop
Installation Date
.......................
Protection Circuitry and Troubleshooting
...........................................................................
Service
.................................................................
Specifications
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Hawkins Bass Control
and Use
Hawkins Bass Control (parametric) is a unique
subwoofer control circuit included with the
Application
Subwoofer drivers in qeneral have ex-
cellent power handling characteristics
over their operational bandwidth. This
bandwidth is determined by many
tors, including driver design, and en-
closure type. It is possible to overdrive
any subwoofer driver by sending pow-
erful signals outside of its operational
bandwidth. These potentially damag-
Soundstream
Class A 10.2 and 5.2 am-
plifiers. It is capable of removing subsonic energy
in program material while boosting subwoofer fre-
quencies. The circuit consists of two controls. One
adjusts the frequency of operation and the other
adjusts the range of boost. With both controls ad-
justed fully counter-clockwise, no boost is applied
and the amplifier is flat in response down to 20 Hz.
HAWKINS
BOOST
100
5 0
FIG. LIMITED EXCURSION
Hz
SUBSONI C 13- 30 Hz
ing signals can be removed by adding a subsonic filter. Figure 5 shows the
effectiveness of the Hawkins Bass Control on woofer excursion in a vented
enclosure. The woofer travels 7.5 mm at 10 Hz. With Hawkins Bass Control
properly adjusted, this excursion can be reduced to less than 1 mm. This is
of great benefit to lowering woofer distortion and increasing output.
FIG. 1 BASS CONTROL
The frequency control (Hz) adjusts
the starting point of the subsonic fil-
ter. On the
Class A 10.2
and 5.2, the high pass filter has two
frequency ranges. When the bass
control switch is set to “SUB SONIC”,
the high pass filter frequency can be
adjusted from 13 Hz up to a maxi-
mum of 30 Hz. In this setting, no
boost “Q” control is available. This
control is useful for setting the low-
est frequency that your subwoofer will
see (see figure 1). When the bass
control switch is set to “HAWKINS
BASS CONTROL”, the high pass fil-
ter frequency can be adjusted from
30 Hz to a maximum of 70 Hz. In
this setting, there is an available
boost control of 0 to
Adjustment
An easy method of optimizing your existing subwoofer enclosure with
“Hz” control is as follows.
-
2
4
1
I
2
100
Fr equency {Hz)
5 0
Adjust frequency and boost control to full CCW position.
FIG. VARIABLE “Q”
2
2. Set the bass control switch to “HAWKINS BASS CONTROL”.
3. While listening to music with strong bass content at a moderate level,
slowly adjust frequency control clockwise. Listen for a reduction of bass
response. Now, rotate frequency control slightly backwards. This serves
the purpose of removing the “subsonic” bass energy.
With Soundstream’s Hawkins Bass
Control, the boost and frequency con-
trol can provide virtually any
5 0
100
Frequency ( Hz)
FIG. 3 VARIABLE HIGH PASS
o
tion of boost and cut to suit your de-,,
I
I
I
I
I
II
I
I
/
signs. So, Hawkins Bass Control can
provide the “tailoring” needed for any
type of “assisted” design and any woofer
in any type of installation.
The Boost control adjusts the amount
of level applied at the set frequency. This
is adjustable from flat
to
200
(See figure 2)
100
5 0
10
When the Boost is set to 0, Hawkins
acts as a sub-sonic filter only. (See
figure 3) The simple act of removing
tentially harmful low frequencies can
improve system output by as much as
FIG. 6 VARIOUS
- 20
5 0
100
Fr equency ( Hz)
FIG. 4 VARIABLE BOOST
3
(see figure 4)
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INSTALLATION STEP 2
I
SELECTING THE SPEAKER OUTPUT MODE
Class A 10.2 and 5.2 amplifiers have the ability to operate in
any one of the following modes:
The
Class A 10.2 and 5.2 amplifiers have the ability to accept either
The
a standard Unbalanced RCA signal input, or a Balanced “Pro Audio” style input
signals with the use of the Soundstream BLT Balanced Line Transmitter or some
other balanced line audio source. Before installing your system, you should
decide upon which signal type you wish to run. There are advantages to both:
Stereo
Mono): Use this mode for either stereo operation (left
and right channels) or for Mixed Mono operation (stereo left and right channels
plus bridged mono for a subwoofer).
Summed Mono: Use this mode to get a bridged mono output while using both
the left and right inputs and gain controls.
1. Most preamplifier
source units have
Improved Signal to Noise Ratio
(S/N Ratio).
Unbalanced RCA outputs
(Industry Standard).
2. Excellent noise cancellation
characteristics.
3. Immune to noise radiated in
the car audio environment.
Bridged Mono: Use this mode to get a bridged mono output while using only
the right channel input and gain control (for use with a singular mono input).
I
2.
Interface module is
necessary.
Please follow the wiring schemes below for the correct operation:
The
300
amplifiers’ signal inputs accept a wide range of input level: from
to 5.0 Vrms for both Balanced and Unbalanced inputs. For the best
S/N Ratio, we recommend that the input level controls be set as far down as
possible (rotated counter-clockwise), while maintaining an acceptable level of
output.
SUMMED MONO
R
+
Using the “Unbalanced” RCA Input
When using the Unbalanced RCA input, the RIGHT channel input signal switch
MUST be in the “UNBAL” position. Also, when first installing the amplifier using
this input configuration, we suggest that the left channel input signal switch be in
the “UNBAL” position as well. If vou
lation noise with both switches in the “UNBAL” position,
signal switch to the “BAL” This should remove any
system noise due to the installation.
alternator wine or other instal-
movina the LEFT
channel
Using the “Balanced” RCA Input
When using the Balanced DIN audio input, both switches MUST be in the
“BAL” position. Also, we recommend that when using this input configuration, the
input level controls be set to the “minimum” position (rotated counter-clockwise).
STEREO
R
+
L
+
The system gain should then be
adjusted on the BLT Balanced Line Transmitter,
other other balanced line audio source. For the pin configuration, see the
gram below:
BALANCED
+ 75 Volts
Right Signal
+ Right Signal
11
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INSTALLATION STEP
INSTALLATION STEP 4
POWER AND GROUND
To ensure maximum output from your
loss power and ground cables and connections. The
Determine from the chart below
amplifier, use high quality,
AMPLIFIER LOCATION
amplifiers will
The
heat sink, and a unique Chassisink construction to maintain lower operating
temperatures.
amplifiers employ highly efficient circuitry, a custom-engineered
accept up to 4 gauge power and ground cables.
the minimum gauge power and ground wire for your application.
Additional cooling may be required if the amplifier is located in a
tightly confined area or when driving especially low impedance loads at extremely
high levels.
4
4
gauge only
gauge
Class A 5.2
4
4
or 8 gauge
gauge only
When mounting the amplifier, it should be securely mounted to either a panel in
the vehicle or an amp board or rack that is securely mounted to the vehicle. The
mounting location should be either in the passenger compartment or in the trunk
of the vehicle, away from moisture, stray or moving objects, and major electrical
components. To provide adequate ventilation, mount the amplifier so that there
are at least two inches of freely circulating air above and to the sides of it.
Class A 10.2
RUB/CON
BREAKERS AND FUSES
EXTERNAL
Like all audio components, the
amplifiers must be fused near the
battery. A fuse or circuit breaker must be located within 18” of the battery. This will
See the chart below to determine the
prevent a fire in the event of a shorted cable.
correct fuse value.
MOUNTING THE AMPLIFIER
a.
b.
C.
Using the amplifier as a template, mark the holes on the mounting surface.
Remove the amplifier and drill the holes for the mounting screws.
Secure the amplifier to the mounting surface using the supplied hardware.
INTERNAL
The
event of a blown power supply fuse(s), replace with the correct value fuse found in
Never replace the fuse with a higher value than what is sup-
amplifiers are fused with an automotive-type or Maxi-fuse. In the
the chart below.
WIRING
This may result in amplifier damage and
void the warranty!
plied.
a.
b.
C.
d.
Run and connect the audio signal and remote turn-on cables to the ampli-
fier from the source unit.
Carefully run the positive cable from the amplifier to a fuse or circuit breaker
within 18” of the battery.
Connect the fuse or circuit breaker lead to the battery. Leave the circuit
breaker off or the fuse out until everything is bolted down.
RUB/CON Amplifier Fuse Values
Battery Fuse
Breaker
Circuit
Fuse
amp
amp Maxi-fuse
amp Maxi-fuse
A 5.2
Secure the ground cable to a solid chassis ground on the vehicle.
necessary to sand paint down to raw metal for a good connection.
Double check each and every connection1
It may be
100 amp
RUB/CON
A 10.2
I
e.
f.
Re-connect the fuse or circuit breaker.
SAMPLE WIRING DIAGRAM
POWER UP
Power up the system, there may be a 2-3 second delay from the time the source
unit is turned on to the time that the amplifier turns on, which is normal. Once the
LED is on and the source unit is playing, you should have sound coming
from the speakers.
13
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TRIDENT PROTECTION CIRCUITRY
INSTALLATION STEP 5
Your
amplifier is protected against both overheating and short circuits
by means of main power fuses and the following circuits:
High Current power supply
Speaker Output Protection
Ground Fault Differential
The input levels are adjusted by means of the individual channel input level
controls located on the front of the amplifier. This is a unique dual-stage circuit
Smart Power Supply Thermal Rollback and a Thermal Protection Circuit
This topology maintains better S/N Ratio even
when using sources with minimal output.
that adjusts both level and gain.
NOTE: you experience blown main power supply fuses, it is
the amplifier is seeing a dead short, either in the speaker wire or in
the problem before blowing multiple fuses!
DO NOT increase values beyond the original fuse Doing so
the speaker itself.
In the ideal situation, all components in the audio system reach maximum
undistorted output at the same time. If you send a distorted signal to an amplifier,
it is simply going to amplify distorted information. The same holds true if an
outboard processor or crossover begins to distort before you have maximum
output from the amplifier. By setting all components to reach clipping at the same
warrant and may damage your amplifer.
void your
TROUBLESHOOTING
time, you can maximize the output of your system. For the
follow these steps for setting the input levels:
amplifiers,
PROBLEM
CAUSE
1.
2.
3.
Turn the amplifiers’ input levels to minimum position (counter-clockwise)
Set the source unit volume to approximately of full volume.
While playing dynamic source material, slowly increase the amplifiers’ input
level until a near maximum undistorted level is heard in the system.
1.
power or ground at the amp.
No Sound and power LED is not
lit
2. No remote turn-on signal
3. Blown fuse near the battery
1. NO signal input
2. The
“IN” position. Remove
the switch to the
switch is in the
cover and move
position.
The clipping indicators on the top of the amplifier let you know when the output of
the amplifier is reaching its maximum level, and has begun to clip.
No sound, power LED is lit.
Repeatedly blow amp fuse;
frequent activation of Smart
Power Supply Circuit
1. Speaker or leads may be shorted
2. Verify proper speaker load
3. Verify adequate amp ventilation
enough input sensitivity while Be sure both Left and Right input signal
using the Balanced Input
switches are set to the “BAL” position.
Once the amplifier is installed and the proper levels set, place the front spoiler in
position, and secure it on using the supplied hardware.
Very little output, or output is Make sure that
the
and the
muffled.
aren’t engaged
Output signal level is too high and the amplifier
output is clipping. Reduce the level either at
the source or at the input level controls.
Left and Right “Clip” indicators
lighting
1. Make sure the Right Input Signal Switch is
in the “UNBAL” position.
2. Try the Left Input Signal switch in the “BAL”
Alternator whine while using
Unbalanced RCA inputs
and
position: leave the switch in the
quietest setting. This will not effect the
performance of the amplifier.
The Class A 5.2 a.k.a.
low.
Your load on the amplifier is too high (3-4
is ohm stereo) Rewire the amplifier to a
lower impedance load.
15
14
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