Soundstream Technologies 5.0, 10.0 User Manual
SERIES AND PARALLEL WIRING
2-4 ohm drivers in parallel
= 2 ohms
REFERENCE
Class A
5.0 & 10.0
Power Amplifiers
OWNERS MANUAL
2-4 ohm drivers in series
= 8 ohms
SOUNDSTREAM TECHNOLOGIES
120 Blue Ravine Road Folsom California 95630 USA
ph 916.351.1288 fax 916.351.0414
rev B - 4.17.96
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4-4 ohm drivers in parallel
=1 ohm
AND
INSTALLATION GUIDE
1
CONGRATULATIONS!
You now own the REFERENCE Class A Amplifier, the product of an
uncompromising design and engineering philosophy. Your
Soundstream REFERENCE Class A amplifier will outperform any other
amplifier in the world.
To maximize the performance of your system, we recommend that you
thoroughly acquaint yourself with its capabilities and features. Please
retain this manual and your sales and installation receipts for future
reference.
Soundstream amplifiers are the result of American craftsmanship and
the highest quality control standards, and when properly installed, will
provide you with many years of listening pleasure. Should your
amplifier ever need service or replacement due to theft, please record
the following information, which will help protect your investment.
Model and Serial # ____________________________________
Dealer’s Name _______________________________________
Date of Purchase _____________________________________
Installation Shop ______________________________________
Installation Date ______________________________________
SERVICE
Your Soundstream REFERENCE Class A amplifier is protected by a limited
SPECIFICATIONS
POWER
REFERENCE Class A 5.0
Watts
Watts
THD
Signal to Noise
Frequency Response
Stereo Separation
4 Ω Stereo
(8 Ω Bridged)
(12 Vdc)
12.5 x 2
(25 x 1)
25 x 2
(50 x 1)
2 Ω Stereo
(4 Ω Mono)
50 x 2
(100 x 1)
1 Ω Stereo
(2 Ω Mono)
100 x 2
(200 x 1)
REFERENCE Class A 10.0
100 x 2
(200 x 1)
250 x 2
(500 x 1)
<0.1%
>100 dB
20 Hz to 20 kHz ± 0.5 dB
>90 dB
1/2 Ω Stereo
(1 Ω Mono)
250 x 2
(500 x 1)
500 x 2
(1000 x 1)
1/4 Ω Stereo
(1/2 Ω Mono)
250 x 2
(500 x 1)
500 x 2
(1000 x 1)
CAUTION!
Prolonged listening at high levels may result in hearing loss. Even
though your new Soundstream REFERENCE Class A amplifier
sounds better than anything you’ve ever heard, exercise caution to
prevent hearing damage.
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Damping
Input Sensitivity
Input Impedance
>200
200mV - 2.0V, or 500mV to 5.0V
10K ohms
LSE.Q (Reference CA 10.0)
0.7 - 2.8 Q (0 to +9 dB), adjustment from 30 to 60 Hz
Dimensions (W x D x H)
REFERENCE CLASS A 5.0: 12.25” x 9.8” x 2.25”
REFERENCE CLASS A 10.0: 15.0” x 9.8” x 2.25”
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PROTECTION CIRCUITRY
Your REFERENCE Class A amplifier is protected against both overheating and
short circuits by means of the following circuits:
• Main power supply fuses
• Smart Power Supply Thermal Rollback activating at 85°C.
• A fail-safe thermal protection circuit activating at 95°C.
Your amplifier also incorporates an innovative Fault Diagnosis system that
NOTE: If you experience blown main power supply fuses, DO NOT increase
values beyond the original fuse value! Doing so will void your warranty and may
damage your amplifier. If you blow fuses with the REFERENCE Class A
amplifiers, it is likely that the amplifier is seeing a dead short, either in the speaker
TROUBLESHOOTING
PROBLEM CAUSE
No sound and power LED is
not lit
No sound, a power LED is lit,
and the AIRBASS™ option
has not been added.
Fault LED is lit
Repeatedly blown amp fuse,
frequent activation of Smart
Power Supply Circuit
Not enough input sensitivity
while using Balanced input
• No power or ground at amp
• No remote turn-on signal
• Blown fuse near battery
• No signal input
• The AIRBASS™ switch is in the "IN" posi-
tion. Move it to the "OUT" position
• Amp power supply fuse is blown or missing
• Speaker or leads may be shorted
• Verify adequate amplifier ventilation
• Be sure both Left and Right Input Signal
Switches are set to the "BAL" position
TABLE OF CONTENTS
Design Features .................................................................4 - 5
AIRBASS™ ............................................................................. 5
Reference Class A 5.0 Diagram .........................................6 - 7
Reference Class A 10.0 Diagram .......................................8 - 9
Selecting Input Modes ........................................................... 10
Balanced / Unbalanced Input ................................................ 11
Wiring & Wiring Diagram ................................................ 12 - 13
Installation and Mounting ...................................................... 14
Level Setting ......................................................................... 15
LSE.Q Theory and Use ..................................................16 - 17
Protection Circuitry & Troubleshooting .................................. 18
Service .................................................................................. 19
Specifications ........................................................................ 19
Left and Right Input Overload indicators lighting
Alternator whine while using
Unbalanced RCA inputs
• Input signal level is too high - readjust input gains, or select the 0.5-5V input signal
level range
• Make sure the Right Input Signal Switch is
in the "UNBAL" position.
• Try the Left Input Signal Switch in the
"BAL" and "UNBAL" position: leave the
switch in the quietest position. This will
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not effect the performance of the amplifier.
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