Lamzator Amber 2 DAC


Anyone been tube rolling this DAC? I'm open to Ideas for tubes and upgrades. Thanks.
tubes1988
tubes1988, does your Amber II play Tidal MQA content? I know it doesn't process/unfold MQA content but curious to hear if it even plays that content. 
I have the Amber DAC II, the Amero USB driver I downloaded for it to work with the USB port, has a switch to "pass though MQA" to disable software decoding of MQA.  I dont really understand what it does, I'm happy with with as is. Cheers.