Quote:
Originally Posted by tdelahanty
I wonder if the filters are simply software executed by a microprocessor or are they actual filters which contain polar elements (resistors, caps, inductors)?
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Congratulations on the K-01X. I believe its FIR and SDLY filters correspond directly to those filters that can be set for the AK4495S DAC chip as detailed in the public data sheet.
If you listen to MQA music (from Tidal or MQA CD rips), I suggest setting the filter to SDLY2.
When used with the Lumin U1, you can try the USB output (up to DSD128) or coaxial output (up to DSD64) and see which sounds better to you. When you use the coaxial output, the USB has to be disconnected first.