Do the existing SMSL codes (see below image) not work with your DAC? Generally manufactures will reuse the same codes for their products. I found a couple sets of codes for SMSL at: https://gist.github.com/elupus/19ab3405168977a7bc3640402258302a https://www.reddit.com/r/BudgetAudiophile/comments/al1nqp/smsl_q5_pro_ir_codes/ https://github.com/UberGuidoZ/Flipper-IRDB/blob/main/Audio_Receivers/SMSL/SMSL_RC-8C.ir I have no idea any or which will work with your DAC,