I used to own the Evo CDP. It's a great CDP, more transparent than the Arcam DC73, with a broader soundstage, more precise imaging, and a faster and weightier bottom end. The top end however has a metallic quality which can be disturbing if the speakers are too bright. The Arcam has a more natural timbre, a rounder sound, and it provides better detail and attack on mid and low-mid frequencies.
But I don't particularly like the Evo amp. I've tried it several times at home (the Creek distributor in my country is a friend of mine), and I think it's too agressive on the treble. I think there is too much distorsion going on up there. Probably, it's a design decision (I remember reading once on HFC that a bit of distorsion could actually give the impression of more speed to the sound). I've never been able to relax listening to the Evo amp. It just gets on my nerves. I admit it's a capable amp, plenty of detail, with excellent timing, a strong and fast bass, good imaging, etc. But for me it has a very irritating voice, just as those american girls you see on E Entertainment TV!
The best combination for me is to use the Creek Evo CDP, which is transparent and so retrieves all the information from the CD (if you don't do that from the source, the information is lost forever), and to match it with a warmer, rounder, softer, weightier amp. This way you have both resolution, transparency, speed (from the Evo CDP), and a fuller and more amable sound, from the amp.
At least that's what worked for me.
BTW, have any of the Evo owners noticed the smell they have? It's like gasoline. I asked a technician why they smell like this. He told me it's because of the circuit boards they use. They are of the lesser quality available, and practically no one uses them anymore...except for some chinese factories. I've had other chinese equipment (Advance Acoustics) which also has that smell.
And I could not identify any brand on the capacitors. At least entry level models from Arcam use Rubycon!
I'm not trying to look down on the Creek brand; actually I am and have been a Creek owner. I'm just giving some information.