For LEDs that are too bright:
Light Dims overlays
Light Dims overlays
Another happy Modi 3 owner here. I've tried numerous DACs in the past that were far more expensive but they didn't provide the sound I was looking for. The Modi 3, with it's AKM 4490 DAC chip and DC-coupled output, is an absolute bargain. There really does seem to be something special about AKM's "Velvet Sound" technology.
Congrats on your new addition! One tweak maybe worth trying is using the spdif input on the Modi instead of optical if your CD player has that output. Spdif is generally preferred over optical (at least for shorter runs) as the added steps of converting to optical and back to analog are avoided. A cheap and riskless way to do this would be to order a 1.0m Wyde Eye digital cable from Amazon for $40 (an excellent cable for the $), and if it’s not a meaningful improvement just send it back. If you try this obviously the cable will require some break-in time, and definitely pay attention to the direction arrows as directionality matters (I inadvertently installed mine backwards once and it was awful). Anyway, in this insane audiophile world I thought bringing up a potentially beneficial $40 tweak at least worth considering. Congrats again on your newfound joy!
Ran across this Modi 3 review (revisited) that was quite interesting.
(164) Schiit Modi 3 Revisited (2 months later) - YouTube
In the second part of the review, he talks about the sound quality improvement that resulted from placing small weights on top of the Modi 3 case. I didn't have those particular weights on hand so instead I placed a book on top of the case and was taken back by the sound improvements. In particular, the upper midrange and highs were cleaner and more focused.
It makes for a no-cost experiment and you might be surprised (and pleased) by the result. No reason to think it wouldn't work for other light-weight DACs as well.