I can only agree with Stavros. I have a Talos Ref and was also able to listen to the Talos Sig, but also an Allnic H 8000 and a Phasemation 2000. I have also listened to a JMF ph703 (before the last revision, which took place last year) in my hi-fi system.
OK, maybe the context of the overall system (especially the preamp) plays a role, which in my case consisted of Aries Cerat components. In any case, the Reference was already at least on a par with the other devices, in some cases superior (e.g. tonal colours) if you apply pure hi-fi criteria - but if you add high-end criteria (I mean in particular the physicality of the imaging, physical presence, authenticity, flow, etc.), the Ref was clearly superior. Well, the sig is simply even better. But the Ref is already very, very good and absolutely worth its price. Wonderful!