Allo Digione Signature + LPS vs. Berkeley Alpha USB to SPDIF Converter?

I'm currently running a Mac Mini + JKSPDIF Mk3 USB->SPDIF + AMR DP-777 SE DAC and am looking at either upgrading the JK to Berkeley Alpha USB or simplifying to an Allo DigiOne Signature + Shanti or other LPS.  Anyone have experience with the Allo and Berkeley?  Or Berkeley vs Singxer SU-6?

I also have an Audiophilleo + PurePower in a different system that I've tried with this setup and it sounds really good.  JK is too soft and smoothed out while AP without PP is too hard in the upper midrange; AP + PP strikes a good balance.  I'm just assuming the Berkeley would be a step up vs AP based on reputation.  I've been out of the game for several years and haven't tried any of the newer dedicated streamers.  Ultrarendu would be a consideration but I need SPDIF to use the superior tube output of the AMR. 

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