i have never known anyone to prefer a benchmark dac over a modded art di/o, and several folks have compared. a used modded di/o can be had for anywhere from 15% to 50% of the cost of a benchmark. you may have to wait a bit for a used one; i had one f/s, but it's now gone, & i am not gonna be selling the other two any time soon.

and, now since the modded zhaolu dacs seem to be maybe even better than the di/o's, it's a no-brainer, imo, to buy a zhaolu dac for $200, spend about $50 on upgrade parts, & forget about something like a benchmark.
and, i know wery few folks that prefer running
any source direct w/o a preamp. even really really expensive ones, let alone relatively cheap ones like the benchmark. i am not familiar w/your pre; i suspect if it's good, it will be a significant downgrade if you run something like a benchmark direct. personally, tho, i prefer tubed preamps...
ymmv,
doug s.