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Core Sub User manual

Front LED Indicator

There is one LED indicator on the front that provides information on the status of the Core monitor by glowing or flashing either green or red. The following modes are indicated in this way.


The LED turns bright red then fades to 50% after 5 seconds.

Power On:

The LED turns bright green then fades to 50% after 5 seconds.

Amplifier Clipping:

The LED flashes bright red continuously.

Thermal Protection:

The LED pulses red and the output is reduced by 6 dB

Word Clock Error:

When the word clock input is not aligned with the AES input signal, the LED flashes bright green and the monitors are muted.

Input Clipping:

The LED turns orange when the analog to digital converter is clipping.