SERIES AND PARALLEL WIRING
2-4 ohm drivers in parallel = 2 ohms
4-4 ohm drivers in parallel =1 ohm
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
20
REFERENCE
Class A 5.0 & 10.0
Power Amplifiers
OWNERS MANUAL
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 ______________________________________
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.
SERVICE
Your Soundstream REFERENCE Class A amplifier is protected by a limited
SPECIFICATIONS
POWER |
|
4 Ω Stereo |
2 Ω Stereo |
1 Ω Stereo |
1/2 Ω Stereo |
1/4 Ω Stereo |
|
|
(8 Ω Bridged) |
(4 Ω Mono) |
(2 Ω Mono) |
(1 Ω Mono) |
(1/2 Ω Mono) |
|
|
(12 Vdc) |
|
|
|
|
|
|
|
|
|
||
|
|
|
REFERENCE Class A 5.0 |
|
||
Watts |
|
12.5 x 2 |
50 x 2 |
100 x 2 |
250 x 2 |
250 x 2 |
|
|
(25 x 1) |
(100 x 1) |
(200 x 1) |
(500 x 1) |
(500 x 1) |
|
|
|
|
|
||
|
|
|
REFERENCE Class A 10.0 |
|
||
Watts |
|
25 x 2 |
100 x 2 |
250 x 2 |
500 x 2 |
500 x 2 |
|
|
(50 x 1) |
(200 x 1) |
(500 x 1) |
(1000 x 1) |
(1000 x 1) |
|
|
|
<0.1% |
|
|
|
THD |
|
|
|
|
||
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”
2 |
19 |
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 |
∙ No power or ground at amp |
|
not lit |
∙ No remote turn-on signal |
|
|
||
|
∙ Blown fuse near battery |
|
|
|
|
No sound, a power LED is lit, |
∙ No signal input |
|
and the AIRBASS™ option |
∙ The AIRBASS™ switch is in the "IN" posi- |
|
has not been added. |
||
tion. Move it to the "OUT" position |
||
|
||
|
|
|
Fault LED is lit |
∙ Amp power supply fuse is blown or miss- |
|
|
ing |
|
|
|
|
Repeatedly blown amp fuse, |
∙ Speaker or leads may be shorted |
|
frequent activation of Smart |
∙ Verify adequate amplifier ventilation |
|
Power Supply Circuit |
||
|
||
|
|
|
Not enough input sensitivity |
∙ Be sure both Left and Right Input Signal |
|
while using Balanced input |
Switches are set to the "BAL" position |
|
|
|
|
Left and Right Input Over- |
∙ Input signal level is too high - readjust in- |
|
load indicators lighting |
put gains, or select the 0.5-5V input signal |
|
|
level range |
|
|
|
|
Alternator whine while using |
∙ Make sure the Right Input Signal Switch is |
|
Unbalanced RCA inputs |
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 |
|
|
18 |
|
|
not effect the performance of the amplifier. |
|
|
|
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 |
3
Loading...