Pass labs XA-160.8 monos - or -  Mark Levinson 536 monos for Magico's

If you had to chose today / now one of these sets of mono-blocks for same money what would you choose?

Pass labs XA-160.8 monos

- or -  

Mark Levinson 536 monos


Associated gear

Bricasti M1SE w/M12 built in ethernet media player
SGC sonicTranporter Roon Server w/Uptone JS-2 LPS
TLS OCXO ethernet Switch & 912 OCXO LPS
TLS Reference CAT7 ethernet cable loom
TLS Reference DC cable loom

(Either Mark Levinson 523 or Pass Labs XP-30) based on monos chosen

Magico S5 MK II

Kubala-Sosna Emotion/Elation Full Loom


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It has been widely rumored that Alon Wolf is very fond of Hegel amps with his speakers, so I'd definitely add them to your list.  Also, if Clayton M100s or M300s are available they're also worth a serious look along with Pass and ML.  I heard the Q7s with some Vitus monoblocs and they were sublime, so that might be yet another option.  I'd enthusiastically add Gryphon but not sure if they have US support here yet.  The first thing I'd do is ask Magico what they'd recommend given your setup and tastes.  Great speakers!  Best of luck in finding the right amp.  Let us know what you end up with and why, as I'm sure it will help lots of Magico owners going forward. 
Going for the Pass Labs XA160.8 Mono-Blocks and now trying to find a good matching preamp. Thinking maybe a neutral sounding tube preamp. What do you guys think?

Nagra Jazz or maybe Zanden 3100?

Any thoughts, idea or recommendations? 
I’m completely satisfied with an AtmaSphere MP-1 into Pass XA-160.8 monoblocks. It’s a super clean direct coupled differential balanced tube sound. Give Ralph a call.
Fior tube preamp i would certainly look at VAC wonderfully made and sounds great with depth,sound stage,dynamic impact and great bass.The company is wonderful as well.
AtmaSphere is cool and not something even on my radar. Thanks 

VAC - one of these just showed up on here. How are these? There are no reviews or anything but VAC is known as great stuff. Anyone hear of this preamp?

VAC PHI 2.0 Preamp