for a small form factor dac with a highly organic and musical presentation, i can heartily recommend a tube buffered dac from mhdt - orchid, stockholm, istanbul, toucan etc etc... lovely, highly refined sweet yet resolving sound, small footprint
greater resolving power than the border patrol (i have had both side by side), sense of space and clearer leading edge transients without any trace of harshness
in the past couple years, i’ve compared the orchid (stock and grannyring modded) against ayre codex, musical paradise, various schiit, chord, denafrips, and numerous higher priced units