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Panel Descriptions

Black Max Rear Panel

1. Speaker Terminals - Connects to 70V constant voltage speaker loads. One set for each amplifier section.Accepts up to

10 AWG wire or spade lugs for speaker system connections.

2. Ground Terminal - Provides convenient access to earth ground.

3. Automatic Sleep Mode - Allows the unit to automatically put itself into a sleep mode when there has been no input

activity for more than 3 minutes. In sleep mode, the amplifier’s idle power is greatly reduced. The amplifier immediately

and noiselessly returns to its full-powered state when a signal is detected at an input. Flush switch actuators reduce tam-

pering.

4. CH B Input Select Switch - Allows output Channel B to source its input signal from either "A BAL INPUT" or "B BAL

INPUT".

5. Lo-Cut Filters - Roll off frequencies below 60 Hz (2nd order) to prevent saturation of speaker transformers. Flush switch

actuators reduce tampering.

6. Fan Exhausts - Cooling air outlets for independent, variable speed cooling fans.

7. Line Cord - AC mains input line cord.

8. AC Power Status Indicator - Indicates the AC power status of the Black Max amplifier. When the indicator is not lit,

C po

wer is applied to the line cord.When lit amber, power is applied to the line cord but no sequential trigger has

been received to place the amplifier into a fully powered up state (or power switch is off).When lit green, the amplifier is

full

y powered.

Power Sequencing Switch -

urns power sequencing on or off so that an amplifier can be controlled by either its front

cir

cuit br

eak

er s

witch or by another Black Max amplifier. Flush switch actuators reduce tampering.

10. Power Sequencing Inputs - Multiple Black Max amplifiers can be wired together in a daisy chain to allow for controlled

sequential power-up.A pluggable screw terminal strip is provided for easy installation.

11. Input Sensitivity Switch - Allows the unit to reach full power at either line-level input (1V) or low-level input (0.1V).

12.

High-Impedance Balanced Inputs -

Pluggable 3-position scr

ew terminal strips allow for easy installation and provide

convenient connections to high-impedance balanced inputs.

13. Input Level Controls - Continuously variable input level controls.

Bogen X300 User Manual

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