Hey folks.I use Dynaudio BM5A Mk2 speakers going through an arcam rdac, into my PC via USB. Nearfield listening. I want to add a vinyl player into this mix while upgrading DAC, so, after some research, I'm looking into buying an Audiolab 8200dq, because it has three analogue inputs for connecting vinyl. The system also has rave reviews.My questions are:1) Would the *pre-amp* in the Audiolab improve the sound quality of my system when listening to music from my PC via USB? Or would the addition of a preamp be inconsequential in this case?2) Is the DAC in the Audiolab a significant improvement from my Arcam rDAC? I can't seem to find many reviews of the Audiolab 8200dq online.