Sound Storm sta206 User Guide
Troubleshooting
STEALTH MOSFET Amplifier User’s Manual - page 14
Specifications
STEALTH MOSFET Amplifier User’s Manual - page 15
STEALTH MOSFET Amplifier User’s Manual - page 5
STEALTH MOSFET Amplifier User’s Manual - page 7
STEALTH MOSFET Amplifier User’s Manual - page 11
STEALTH MOSFET Amplifier User’s Manual - page 13
CONTENTS
STEALTH MOSFET Amplifier User’s Manual - page 1
U S E R ’ S M A N U A L
STEALTH MOSFET Amplifier User’s Manual - page 4
General precautions
STEALTH MOSFET Amplifier User’s Manual - page 3
Features
About 2 Ohm operation
STEALTH MOSFET Amplifier User’s Manual - page 6
STEALTH MOSFET Amplifier User’s Manual - page 9
STEALTH MOSFET Amplifier User’s Manual - page 10
STEALTH MOSFET Amplifier User’s Manual - page 12
STEALTH MOSFET Amplifier User’s Manual - page 8
Notes
If you experience operation or performance problems with this product, compare your
installation with the electrical wiring diagram on the previous pages. If problems persist,
read the following troubleshooting tips which may help eliminate the problems.
installation with the electrical wiring diagram on the previous pages. If problems persist,
read the following troubleshooting tips which may help eliminate the problems.
The high level input(s) should only be used when your head unit lacks RCA outputs.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
If the RCA outputs are not present, connect the speaker outputs from the receiver
to the high level input connector of the amplifier. Be sure to observe polarity to
avoid audio phase problems.
Protection LED
comes on when
amplifier is
powered up.
comes on when
amplifier is
powered up.
Check for short circuits on speaker leads.
Turn down the volume control on the head unit to prevent overdriving.
Remove speaker leads, and reset the amplifier. If the Protection LED still
comes on, then the amplifier is faulty and needs servicing.
comes on, then the amplifier is faulty and needs servicing.
High hiss in the
speakers.
speakers.
Disconnect all RCA inputs to the amplifiers. If the hiss disappears, then
plug in the component driving the amplifier and unplug its inputs. If the
hiss disappears at this point, go on until the faulty/noisy component is
found.
It is best to set the amplifier's input level control as low as possible. The
best subjective signal-to-noise ratio is achieved in this manner. Try to set
the head unit as high as possible (without distortion) and the amp input
level as low as possible.
plug in the component driving the amplifier and unplug its inputs. If the
hiss disappears at this point, go on until the faulty/noisy component is
found.
It is best to set the amplifier's input level control as low as possible. The
best subjective signal-to-noise ratio is achieved in this manner. Try to set
the head unit as high as possible (without distortion) and the amp input
level as low as possible.
Squealing noise
from speakers.
from speakers.
Check for improperly grounded RCA interconnects.
Distorted sound.
Check that the Input Level Control is set to match the signal level of the
head unit. Always try to set the Input Level as low as possible.
head unit. Always try to set the Input Level as low as possible.
Check that all crossover frequencies are properly set.
Check for short circuits on the speaker leads.
Amplifier gets
very hot.
very hot.
Check that the minimum speaker impedance for the amp model is correct.
Check that there is good air circulation around the amp. In some
applications, it may be necessary to add external cooling fan(s).
applications, it may be necessary to add external cooling fan(s).
Engine noise
(static type)
(static type)
This is usually caused by poor quality RCA cables,which can pick up
radiated noise. Use only the best quality cables, and route them away
from power cables.
radiated noise. Use only the best quality cables, and route them away
from power cables.
Engine noise
(alternator
whine)
(alternator
whine)
Check that speaker leads are not shorted to the vehicle chassis.
Check that the RCA grounds are not shorted to the vehicle chassis.
Check that the head unit is properly grounded.
Tri-Mode
CH1
Speaker
Speaker
CH2
Speaker
Speaker
Before installing and using your
new Sound Storm Laboratories
amplifier, please become familiar
with all the information contained
in this manual.
new Sound Storm Laboratories
amplifier, please become familiar
with all the information contained
in this manual.
Please keep this manual in a safe
place for future reference.
place for future reference.
• Do not open or attempt to repair
this unit yourself. Dangerous high
voltages are present which may result
in electric shock. Refer any repairs to
a qualified service technician.
this unit yourself. Dangerous high
voltages are present which may result
in electric shock. Refer any repairs to
a qualified service technician.
• To avoid risk of electronic shock or
damage to the amplifier, do not permit
any of this equipment to become
damp or wet from water or drinks. If
this does occur, immediately unplug
the power wires and send the amplifier
to your local dealer or service center
as soon as possible.
damage to the amplifier, do not permit
any of this equipment to become
damp or wet from water or drinks. If
this does occur, immediately unplug
the power wires and send the amplifier
to your local dealer or service center
as soon as possible.
• If there is smoke or any peculiar
odor present during use or if there is
damage to any of the component
enclosures, immediately unplug the
power wire and send the amplifier to
your local dealer or service center as
soon as possible .
odor present during use or if there is
damage to any of the component
enclosures, immediately unplug the
power wire and send the amplifier to
your local dealer or service center as
soon as possible .
7. Insert fuse(s) into the battery fuse
holder(s).
holder(s).
8. Recheck all connections before
powering up the amplifier.
powering up the amplifier.
9. Set all level controls to minimum
position, and set all crossover
controls/switches to the desired
frequency points.
position, and set all crossover
controls/switches to the desired
frequency points.
10. Power up the head unit and the
amplifier. Then set the volume control
on the head unit to about 3/4 volume,
and adjust the amplifier’s input level
control(s) to just below the level of
distortion.
amplifier. Then set the volume control
on the head unit to about 3/4 volume,
and adjust the amplifier’s input level
control(s) to just below the level of
distortion.
11. Further fine tuning of the various
controls may be necessary to obtain best
results.
controls may be necessary to obtain best
results.
Your STEALTH amplifier has been
designed to operate efficiently at loads
down to 2 Ohms. This means that you
can install four 8 Ohm speakers per
channel, when using parallel wiring.
designed to operate efficiently at loads
down to 2 Ohms. This means that you
can install four 8 Ohm speakers per
channel, when using parallel wiring.
Increasing the number of woofers per
channel at low frequencies (below
100Hz) produces an acoustic coupling
effect. This acoustic coupling effect
increases your power output by about
3dB per speaker, or the equivalent of
an additional 10W per speaker.
channel at low frequencies (below
100Hz) produces an acoustic coupling
effect. This acoustic coupling effect
increases your power output by about
3dB per speaker, or the equivalent of
an additional 10W per speaker.
When operating at 2 Ohms, the
amplifiers will increase their output
power by approximately 50%. The
current draw will also increase by
about the same amount, so be sure
you have enough current to run the
amplifiers into a 2 Ohm load.
amplifiers will increase their output
power by approximately 50%. The
current draw will also increase by
about the same amount, so be sure
you have enough current to run the
amplifiers into a 2 Ohm load.
If you lack adequate current, your
music reproduction will be distorted.
music reproduction will be distorted.
Low-level (RCA) input wiring is preferred for best audio performance. Always use
a high-quality RCA cable for best audio performance.
a high-quality RCA cable for best audio performance.
Tri-Mode
RIGHT
Speaker
Speaker
LEFT
Speaker
Speaker
To Audio
Outputs of head
unit or signal
processor
4-Channel Amplifiers
To Speaker Terminals
of head unit
of head unit
To Speaker Terminals
of head unit
of head unit
2
Introduction
2
What is included?
3
Features
3
About 2 Ohm operation
4
General precautions
4
Installation precautions
4
Mounting the amplifier
5
Connecting the amplifier
6
Low level input wiring
7
High level input wiring
8
2CH Power and Speaker wiring
2CH Mode
9
2CH Power and Speaker wiring
Bridged Mode
10 2CH Power and Speaker wiring
TriMode
11 4CH Power and Speaker wiring
4CH Mode
12 4CH Power and Speaker wiring
Bridged Mode
13 4CH Power and Speaker wiring
TriMode
14 Troubleshooting
15 Specifications
Congratulations on your
purchase of a
Sound Storm Laboratories
purchase of a
Sound Storm Laboratories
STEALTH Amplifier.
It has been designed, engineered
and manufactured to bring you
the highest level of performance
and manufactured to bring you
the highest level of performance
and quality, and will afford you
years of listening pleasure.
years of listening pleasure.
Thank you for making Sound
Storm Laboratories your choice
Storm Laboratories your choice
for car audio entertainment!
All specifications subject to change without notice.
page
RMS POWER
into 4 Ohms
MAX POWER
into 2 Ohms
BRIDGED POWER
into 4 Ohms
Min. speaker
impedance
impedance
THD
Frequency response
Signal-to-noise ratio
Channel separation
Damping factor
Crossover range
low pass
high pass
Bass boost
Fuse rating
Dimensions:
(11-
(11-
1/2
" x 2
-7/16
" x ...)
MODEL
STA412
Four C hannel MOSFET Car Audio Amplifiers
250W x 4
400W X 4
800W x 2
2 Ohm Stereo
4 Ohm Mono Bridged
4 Ohm Mono Bridged
0.01%
9Hz-50kHz
103dB
90dB
125+
35Hz-160Hz
200Hz (fixed)
Variable 0 - +18dB
25A x 2
13-3/4"
STA416
STA220
STA216
STA212
STA208
STA206
STA216
STA212
STA208
STA206
Two Channel
MOSFET Car Audio
Amplifiers
MOSFET Car Audio
Amplifiers
STA416
STA412
STA412
Four Channel
MOSFET Car Audio
Amplifiers
MOSFET Car Audio
Amplifiers
RMS POWER
into 4 Ohms
MAX POWER
into 2 Ohms
BRIDGED POWER
into 4 Ohms
Min. speaker
impedance
impedance
THD
Frequency response
Signal-to-noise ratio
Channel separation
Damping factor
Crossover range
low pass
high pass
Bass boost
Fuse rating
Dimensions:
(11-
(11-
1/2
" x 2
-7/16
" x ...)
MODEL
Two Channel MOSFET Car Audio Amplifiers
SYMPTOM
POSSIBLE REMEDY
Connect the Positive (+) terminal of the
subwoofer to the R (+) amplifier terminal.
subwoofer to the R (+) amplifier terminal.
Connect the Negative (-) terminal of the
subwoofer to the L (-) amplifier terminal.
subwoofer to the L (-) amplifier terminal.
Two
Channel
Mode
Channel
Mode
Connect the Positive (+) terminal of the
subwoofer to the R (+) amplifier terminal.
subwoofer to the R (+) amplifier terminal.
Connect the Negative (-) terminal of the
subwoofer to the L (-) amplifier terminal.
subwoofer to the L (-) amplifier terminal.
CH
3-
CH
4+
CH
4-
CH
3+
Bridged
Mode
Mode
Four
Channel
Mode
Channel
Mode
Bridged
Mode
Mode
Connect the Negative (-) terminal of the RIGHT
subwoofer to the CH4(-) amplifier terminal.
subwoofer to the CH4(-) amplifier terminal.
Connect the Postive (+) terminal of the RIGHT
subwoofer to the CH3(+) amplifier terminal.
subwoofer to the CH3(+) amplifier terminal.
Connect the Negative (-) terminal of the LEFT
subwoofer to the CH2(-) amplifier terminal.
subwoofer to the CH2(-) amplifier terminal.
Connect the Postive (+) terminal of the LEFT
subwoofer to the CH1(+) amplifier terminal.
subwoofer to the CH1(+) amplifier terminal.
To REAR Audio Outputs of
head unit or
signal processor
To FRONT Audio Outputs
of head unit or
signal processor
of head unit or
signal processor
To Speaker Terminals
of head unit
of head unit
220W x 4
300W X 4
600W X 2
2 Ohm Stereo
4 Ohm Mono Bridged
4 Ohm Mono Bridged
0.01%
9Hz-50kHz
103dB
90dB
125+
40Hz-150Hz
200Hz (fixed)
Variable 0 - +18dB
40A x 1
11"