Indicator build

I have a Schiit Saga S preamp which sits in a closet in my room with the rest of my sources.


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The problem is with the closet door closed (blocks the noise of the PC and the noise of the relays in the preamp clicking) I cannot see what input on the preamp I have selected or whether the active mode is on or whether mute is on.

I use an IR extender for the remote.

That got me to thinking. Is there something I can put in front of each LED that will drive LEDs on a board mounted right outside the closet door?