Stellar Industries SLA470 - Manual (Page 4)

Front Panel Controls
Power
Provides manual on/off control of the amplifier. For this control to operate normally, the rear
Trigger/Auto-On/Normal selector must be in the Normal position. If using the Trigger or Auto
On mode, this switch must remain in the ON position.
On/Standby Indicator
Bi-color lamp provides immediate indication of the amplifier status. With the power switch OFF, the
lamp is not lit. With the power switch ON, and Trigger or Auto-On in STANDBY mode, the lamp is
red. When the amplifier is manually, automatically (signal sensing) or externally triggered ON, the
lamp lights blue. This allows the user to immediately know the exact status of the amplifier from
anywhere in the room.
A/B Speaker Selector
Each A and B pushbutton operates independently. Pressing the button in will engage the speaker
pair for the designated output. Pressing again will disengage that output. With both pairs on, the
speaker outputs are parallel.
Balance
This provides trim adjustment between the Left and Right audio channels of the amplifier. Note that
this is a “trim” control, in that it provides for fine adjustment between the two channels. Unlike
conventional “balance” controls on consumer audio equipment, this control will not completely mute
the opposing channel, even when turned fully clockwise or counterclockwise.
Volume
This provides volume trim adjustment, simultaneously for the and right channels. Note that the
master volume level is set via the recessed Master Level Controls on the rear panel. The front
panel volume control is intended to provide fine up/down adjustment from the preset level.
This is especially useful in distributed audio applications, as it allows the Installer to set the overall
amplifier limit, while allowing the user only a limited range of adjustment. This greatly reduces the
risk of speaker and component damage from abuse or tampering after the installation is complete.
Caution
Prior to connecting this unit to AC power,
Note the following critical information
Power Source Selection
Locate this switch on the right side of the rear
panel, directly next to the power cord
connection.
Make sure this switch is in the proper connection
prior to connecting power.
Failure to do so could result in permanent
damage to the amplifier and potentially create a
hazard, even if the amplifier is switched off.
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