I have heard teh Atlantic, but not in the same room and system as mine. I personally like the micro and macro detail the the Ayre just nails. I read that review of Steve's incredible ODSX and Plaskin calls his QX5 a bit forward. I don't get that in my system at all and I have an Ayre AX5/20 running it. If a recording is mastered forward, then it will give me that. If it's not, then it won't present that like many others will. When I make a statement like that, I realize that I wasn't in the room when the music I"m listening to was mastered. I can't know how they wanted it, but these are mostly tunes that I'm familiar with on many systems and if something is mostly 'not forward', then I'm making a broad based assumption that it probably wasn't mastered that way. Visa versa.
I now will sell my Ayre QX5, but like the Empirical Audio ODSE/SE, I will miss it greatly. As for the Atlantic vs, I think the biggest difference is that the Lampi doesn't have quite the detail that the Ayre has and the Ayre's noise floor is the lowest of the two by a bit. Charlie builds a lot of his own power filtering in the mids on up into all his units now. The QX5 has special filtering in it. I also liked that it's got one of the best streamers built into it. It sounds better by a smidge than the Aurender N100 that I heard side by side. I also feel it's best in balanced mode. The one thing I like about Ayre is that it's neither tube nor SS. That is the Ayre sound and it's what Charlie has always been about, even back in his Avalon Accoustic days. He's one of the few who were able to figure that all out. His diamond stages really pushed that concept forward in his designs.
I just can't do tubes anymore. I love many of the tube designs and I owned Jadis, Quicksilver, Aesthetix, Conrad Johnson and Audio Research along with Counterpoint (best of most if not for breaking down monthly). Until I got the Ayre gear a few years ago, tubes were all I owned. Heck, I'd die for the Vandersteen 7 mk2's with Richards amp that is a tube/hybrid type of amp. I have enjoyed the Lampi the few times I've heard them. Would I own one? Of course I would. Many DAC's I'd own, but I do feel that in the prices ranges I've ended up playing in, I got the right one for my system.
It's crazy as with MS, it takes me so long to write something like this, so please bear with me when I'm off on a tangent at times and if my thoughts aren't always in sync. Thanks.