Hi Gavin. I'm late to the thread but wanted to let you know that I owned BOTH the P03/D03 (and G0s clock) as well as an MSB Diamond IV Dac, transport, and power supply at different times. The Esoteric pieces are a great choice and of the highest build quality. The P03 uses one of the best mechanisms there is. I recommend running the P03/D03 in dual AES/EBU out if you can. I recall that configuration improving the musical presentation. Enjoy.