18
WIRING
POWER AND GROUND
To ensure maximum output from your REFERENCE amplifier, use high
quality, low-loss power and ground cables. The REFERENCE amplifiers will
accept up to 4 gauge power and ground cables. Determine from the chart
up to 10’
up to 20’
REFERENCE500s
Soundstream Power40 or
Power80
Soundstream Power40 only
(4 ga.)
REFERENCE700s
Soundstream Power40 or
Power80
Soundstream Power40 only
(4 ga.)
REFERENCE1000s
Soundstream Power40 only
Soundstream Power40 only
INSTALLATION STEP 3
CIRCUIT BREAKERS/FUSES
EXTERNAL
Like all audio components, the REFERENCE amplifiers must be fused near
the battery. A fuse or circuit breaker must be located within 18” of the battery.
This will prevent a fire in the event of a shorted cable. See the chart below to
determine the correct fuse value.
INTERNAL
The REFERENCE amplifiers are fused with either automotive-type or Maxi-
fuses. In the event of blown power supply fuse(s), the “Fault” indicator on the
top panel will light. The fuses are accessible either from the front panel of the
amplifier or via a plastic plug on the bottom of the amplifier. See the chart
(Continued on page 19)
Read this, or sparks will fly!
The Soundstream REFERENCE amplifiers have extensive internal power
supply capacitance, called the Ultra-Low ESR Capacitance Bank. Multiple
small input power capacitors act as an internal "stiffening capacitor". Because
of the large amount of internal capacitance, there may be a sizable spark
when connecting the power and ground lead to the amplifier for the first time.
In order to charge the capacitor bank without a spark, we suggest you do the
following:
1. Connect the +12 volt cable to the amplifier and to the battery.
2. Connect one end of the ground cable to the chassis of the vehicle.
3. We have supplied a 150 ohm, 2 watt resistor with the amplifier. One leg
of the resistor has been connected to the ground terminal of the amplifier.
4. To charge the capacitor bank, touch the loose end of the ground cable to
7
Key to Callouts
1.
Fault LED - Indicates a blown fuse.
2.
High Power LED - Indicates amplifier power on in "High Power" mode.
3.
Auto High Current LED - Indicates amplifier power on in "High Current"
mode.
4.
Line Out Crossover Switch - Select high pass, low pass or full range low
level output to an auxiliary amplifier.
5.
Input Overload Indicators - Indicates the signal input level or input gain
level is too high.
6.
Input Level Selector Switch - Selectable input sensitivity range from 0.2-
2 Volts RMS, or from 0.5-5 Volts RMS.
7.
Left Channel Balanced / Unbalanced Input Selector Switch - Select
"Balanced" to use the 6 pin Balanced signal input. Select "Unbalanced" to
use the RCA signal inputs.
8.
Right Channel Balanced / Unbalanced Input Selector Switch - Select
"Balanced" to use the 6 pin Balanced signal input. Select "Unbalanced" to
use the RCA signal inputs.
9.
+12V - Connected to a fuse or circuit breaker, then to the battery's positive
post.
10. GND - Main ground connection. Bolt to a clean chassis ground in the
vehicle.
11. REM - Remote turn-on input from the head unit. A12V.
12. Speaker Output Connections - Left and right channels.
13. Crossover Output - High pass, low pass or full range output to an
auxiliary amplifier.
14. Crossover Adjustment Pots - Crossover frequency settings for high
pass and low pass filters; Amplifier and crossover outputs.
15. Input Level - Independent Left and Right channel input level controls.
16. Balanced Signal Input Connector - 6-pin Balanced signal input
connector for use with the Soundstream BLT Balanced Line Transmitter.
17. Inputs - Right and left channel RCA (Unbalanced ) inputs; only right
channel input is used in "Mono" mode.
18. Main Fuse - Main power supply fuse. Replace only with the same value
fuse.
19. Coherent Stereo/Bridge/Mixed Mono switch - Select "Bridge" for
bridged mono operation (use right channel input). Select "Stereo" for
coherent stereo operation. Select "Mixed Mono" for simultaneous stereo /
bridged mono operation.
20. Amplifier Crossover - Select high pass, low pass or full range amplifier
operation.
