Thanks all for advice and recommendations given. In the end I went for a set of used Nord One Ups and found a Weiss Dac202 on ebay to use as a dac preamp (replacing my Chord Mojo in the process). End result sounds quite special.
The one thing I thought was slightly missing moving from my Spendors to the Hawks was the very top end - the airiness seemed to have gone compared to my D7s. I thought maybe it was a trait of the speakers, I had read that Obelisks had a more airy feel to them. However, the dac202 has brought that airiness back plus everything has gone up a notch in terms of detail and texture.
Currently running mac laptop running roon/spotify->supra usb->Singxer F1->spdif->dac202->atlas->hawks. Planning to get a firewire 400/800 cable to see if firewire is any better/worse than going via the F1.
Need to setup the mojo/roksan/spendors in the other room to see if the airiness of the mojo returns with the spendors and whether its a synergy thing or just I didn't realise it was missing before.
