I admittedly haven’t read through this entire thread, but in my search for ’Oppo 105 and transport’ it seemed to be the closest topic.
I was bored one day & decided to try connecting my old Technics DVD-A10 as a CD transport feeding digital out via both coax & optical to BDP105. I also configured the DVD-A10 for no upsampling to 192/24; strictly 16/44.
My reason for trying was simply out of curiosity but also my desire to extend for as long as possible the duty cycle of the BDP105 transport, since it also doubles & triples its duty for Blu-ray & SACD discs.
To my surprise, the music from CD's came through with an amazingly uncanny three dimensional soundstage that by comparison, using the BDP105 transport did not exhibit as well a three dimensional sound. The DVD-A10’s coax connection sounded slightly better than the optical, but not by much. The noise floor was also noticeably lower & the music just sounded more organic & accurate with respect to pace timing & rhythm.
It got me wondering if the isolation between the two components is a contributing factor; any thoughts why?