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Core Sub User manual

Connecting the monitors


Ensure that you have the correct three-wire grounding type mains cable for your region. The power supplies in the monitors have switching inputs that automatically adapts to the incoming voltage depending on your location.

Plug in the provided mains cable to the monitor and then to the outlet. Ensure the monitor powers up correctly by checking that the power LED is lit on the front of the monitor. Once this is confirmed, power off the monitor by removing the mains cable from the outlet before connecting audio signals.

Standby mode

The monitors have a standby mode that helps conserve energy when they are not in use.

  • When the Power mode switch is set to “ON”, the monitors remain powered on until the mains cable is unplugged.
  • When the Power mode switch is set to “STBY”, the monitors will automatically enter a power-saving standby mode when not in use for 20 minutes and shut down the amplifier section until audio is once again detected at the input.

Audio signals

There are two physical inputs you can choose between:

  • XLR balanced or unbalanced
  • XLR AES Digital

Word Clock Input

When using the AES digital input, you may synchronise the digital clock using a word clock signal. The Word Clock connector on the Core monitor should be used in this case to receive a word clock signal that is derived from the AES audio source. This will ensure that the internal clock of the Core monitor is running exactly in sync with the AES audio signal source.

If no word clock signal is present at the Core’s Word Clock input, the Core monitor will use the embedded word clock from the AES signal itself as a synchronisation source. If the word clock is present, but not in sync with the AES clock, the front panel LED will flash bright green and the monitors will mute.

If you are using the Core Sub to extend the frequency response of a single Core monitor, connect the same audio source to both the Core Sub and Core monitor either with the analogue or AES inputs. For the analogue inputs, you will need to use a professional balanced line splitter to feed both the Core Sub and Core monitor analogue inputs.

If using the digital inputs, you can simply daisy-chain the monitors using the digital out connector. Ensure that both the monitor and sub are set to the correct digital channel (L, R, or L + R).


Before sending audio to the monitors, set the Analogue input sensitivity to 24 dBu and the SPL level switch to 88 dB. Then adjust the outputs of your mixer or audio interface to a low setting and gradually turn up the signal until you get a reasonable volume. This will prevent any accidental overload of the monitor input.