I had the SEG and Dorado and got good results but it also depends on the quality of what you are feeding it with I.e. the coaxial or optical output from your CD player, USB from a laptop etc. There are better DACs around now but they too will be limited by the input.
I also got clicks, but most of what I play is the same bit rate. If you have not done so, try upgrading to the latest firmware. Stan will provide that for a very low cost.
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Cheers
Alastair
RPI4/PI2AES running PiCorePlayer/LMS-> AQ Carbon AES -> Topping D90 DAC-> Khozomo Passive Pre-Amp -> 4x Temple Audio Monoblocks powered by 2xLiFePO batteries->Van Damme Black Bi-Wired to B&W 804 Nautilus and Sommer Carbokab 225 Interconnects