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All LUCIA models provide default functionalities as described below for General Purpose Inputs and Output (GPIO).

When it comes to Remote volume control the default functionality for the GPI is independent control of output volume, output 1 on GPI1 and output 2 on GPI2.

Please note that this control is in series with the control on the front panel.

 There are two ways to do this:
 
  1. Connect a GPO from an external control device with a control voltage output of 0 – 3.3 V, the ground of the control device must be connected to the ground pin of the LUCIA GPI connector.
  2. Connect a remote volume control potentiometer per channel to pins 1 through 4 of the GPIO connector as shown below, the VCC voltage output is 3.3 V and if you want the link the control, then you simply link GPI1 and GPI2 together with a jumper cable.


Amplifier status – Pins 5 and 6 connect to an internal relay to provide amplifier fault indication. The relay is closed when the amplifier is on and operating normally.
The relay opens if a fault in either channel or in the power supply interrupts normal operation of one or both channels.


Optional GPIO modes – The Matrix feature allows any of the four inputs to be routed to any or all the four outputs: the two loudspeaker outputs of the amplifier or the two auxiliary line outputs.
The level for each output is adjustable from 0 to -30 dB using the fader to the right of the matrix.


Manual routing – Click in the box to select the desired input-to-output routing.

Preset routing – Matrix settings appropriate for many applications are available as pre-sets using the scroll-down menu under Presets below the Matrix box.

Level setting – Select the desired output (framed in blue) and use the fader to set the output level.