The EAR-Yoshino 868L, designed by tube expert Tim de Paravicini. Two unbalanced outputs on RCA’s, two balanced (AES48 complaint---Paravicini did a lot of work in pro studios, including Pink Floyd’s London facility, as well as the MoFi mastering chain) on XLR’s via TdP’s renown transformers. The 868 will drive multiple 600 ohm loads; try that with your ARC pre-amp ;-) .
For some not-so-mysterious reason, follow-the-leader audiophile sheep ignore EAR-Yoshino. Not Art Dudley, who lusted after the 912 pre-amp, the 868’s big brother.