I am considering the Skylla II as an upgrade from the Ayon Cd2s. I have not the heard Lamp., so cannot answer the OP's question but FWIW I compared the Cd2s to the highly regarded Prism Orpheus Pro DAC and to me the Cd2s DAC was better. So now I am looking at the Skylla II or potentially the playback designs PBD5. Will try to audition the Play back soon.
Cheers,
Sid
Cheers,
Sid