9BSST FIVE CHANNEL POWER AMPLIFIER
REAR POWER ENTRY PANEL 1. Master circuit - breaker.
The 9BSST uses a
The circuit breaker is not the day to day power switch and should be switched and left ‘ON’ after the installation is complete.Use the ‘ST POWER” switch or an external control voltage to
Should the breaker trip, lower or remove the amplifier input signals. Switch the breaker to the ‘ON’ position. Then power the unit up normally. The circuit breaker must be ‘ON’ at all times for the 9BSST to operate.
2. AC power input.
This is a high current plug for the power cord receptacle. Check that the voltage rating at the right of the connector conforms with your locality. With the circuit breaker ‘OFF’ insert the power cord into the 9BSST, then plug the other
end to an approprate A/C power outlet.
3. Power-Up ( Local / Auto switch. )
A. In “Local” position either the front panel ‘ST POWER” switch or an external voltage controls the
B. “Auto” is used when the 9BSST is powered from a switched power outlet. The ‘ST POWER’ switch and / or control voltage will function normally after the initial power up.
4.External control voltage power up ( Local / external switch.) A. To
Supply a 4v to 12v A/C or DC control voltage to the ‘IN’ terminals of connector ( 5 ).
Use paired wire of 22 gauge to 18 gauge sufficient in length between the source device and the 9BSST. (see ‘W’ ) Select switch (4) to “External”. The amplifier will now
B. In the“Local” setting of switch (4) the 9BSST will ignore the control voltage, and power up only by using the front panel ‘ST POWER’ switch, or as in section 3 above. If a control voltage is present at the ‘IN’ terminals it will still be available at the ‘OUT’ terminals after the
to other voltage controlled devices | figure W | |
Control voltage wire preparation | ||
| ||
| for screw terminal connector | |
| separate 1” |
1/4” | 18 to 22 |
strip | gauge |
CONTROL VOLTAGE SOURCE | wire |
|
Note:
The ‘OUT’ terminals are connected to the ‘IN’ terminals once the 9BSST has
The control current is determined by the source equipment. The carrying current of the ‘OUT’ relay is 2 amps. The 9BSST itself draws less than 2 mA from the control current when operating.
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