The only audible difference between expensive and cheap transport is jitter (noise in time domain). Benchmark has such high jitter suppression (-100dB) that transport (or digital cable) won't make any difference. I use Benchmark with cheap DVD player (great tracking) or AirportExpress.
This is assuming that player is "bit transparent" (all 16-bits, no digital volume control etc.)
This is assuming that player is "bit transparent" (all 16-bits, no digital volume control etc.)