Soundstream REFERENCE A 10.0, REFERENCE A 5.0, Reference Series CLASS-A-10.0, Reference Series CLASS-A-5.0, 5.0 Owners And Installation Manual
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SERIES AND PARALLEL WIRING
2-4 ohm drivers in parallel
= 2 ohms
2-4 ohm drivers in series
= 8 ohms
4-4 ohm drivers in parallel
=1 ohm
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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REFERENCE
Class A
5.0 & 10.0
Power Amplifiers
OWNERS MANUAL
AND
INSTALLATION GUIDE
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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 ______________________________________
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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SERVICE
Your Soundstream REFERENCE Class A amplifier is protected by a limited
SPECIFICATIONS
THD
<0.1%
Signal to Noise
>100 dB
Frequency Response
20 Hz to 20 kHz ± 0.5 dB
Stereo Separation
>90 dB
Damping
>200
Input Sensitivity
200mV - 2.0V, or 500mV to 5.0V
Input Impedance
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”
POWER
4 Ω Stereo
(8 Ω Bridged)
(12 Vdc)
2 Ω Stereo
(4 Ω Mono)
1 Ω Stereo
(2 Ω Mono)
1/2 Ω Stereo
(1 Ω Mono)
1/4 Ω Stereo
(1/2 Ω Mono)
REFERENCE Class A 5.0
Watts
12.5 x 2
(25 x 1)
50 x 2
(100 x 1)
100 x 2
(200 x 1)
250 x 2
(500 x 1)
250 x 2
(500 x 1)
Watts
25 x 2
(50 x 1)
100 x 2
(200 x 1)
250 x 2
(500 x 1)
500 x 2
(1000 x 1)
500 x 2
(1000 x 1)
REFERENCE Class A 10.0
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TROUBLESHOOTING
PROBLEM CAUSE
No sound and power LED is
not lit
• No power or ground at amp
• No remote turn-on signal
• Blown fuse near battery
No sound, a power LED is lit,
and the AIRBASS™ option
has not been added.
• No signal input
• The AIRBASS™ switch is in the "IN" posi-
tion. Move it to the "OUT" position
Fault LED is lit
• Amp power supply fuse is blown or missing
Repeatedly blown amp fuse,
frequent activation of Smart
Power Supply Circuit
• Speaker or leads may be shorted
• Verify adequate amplifier ventilation
Not enough input sensitivity
while using Balanced input
• Be sure both Left and Right Input Signal
Switches are set to the "BAL" position
Left and Right Input Overload indicators lighting
• Input signal level is too high - readjust input gains, or select the 0.5-5V input signal
level range
Alternator whine while using
Unbalanced RCA inputs
• 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
not effect the performance of the amplifier.
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
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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
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