Mrmb. Wow! A very fine system indeed sir,and being a former owner of soundlab A-1's..very close to my heart.While my system is voiced primarily for vinyl,I am certain you would be amazed at the benefit of a top level pre in your rig,whether it is a supratek, one of the Cats or any other pre at that level. I have never auditioned the wadia in my own rig,however....the supratek syrah's line stage was considerably better than my cat sig sl-1 mk2,my MFA luminescence or my ARC sp-10 mk2 when paired with my sony es9000. And I can say for certain that all of the pre's were much more preferable than a direct hook-up to the amps.My experience with a digital source without a preamp in the line was that the music was somewhat thinner dimensionally than real life, missing the body and the bloom of the real thing. The syrah is incredibly transparent and dynamic,and adds nothing of a character or signature per sey. I have never heard the cat amps paired with the cat preamp either so I cannot attest to their synergy and can only surmise they would be a very good match. I did have the pleasure of hearing the magnificent JL-1's mated to the Klimo Merlin pre,[another great pre BTW] powering a pair of proacs former flagship model response 4's and can honestly say I was completely mesmerized with the fidelity, and one of the finest sounding rigs this guy has ever heard. The remote option is also one that I had reservations about as well, but now.... something I couldn't live without. It functions strictly as a motorized pot for gain only and isn't in the signal path. My acquisition of any of the pre's mentioned above, were solely on the merrit's of their phono stages and I can honestly say I enjoyed countless hours with all of them while spinning vinyl. I still use the Luminescence and doubt I will ever part with it. That said:The supratek bests every one of them when used as a line stage and by a wide margin. At the current price of admission...it has no real competition that I am aware of! Perhaps, someone here with much more experience than I have in the digital medium will hopefully chime in here.