Which Integrated with Magico A3

Stay with what you got which is very good. or get a Pass 350.8 for more power bass detail and impact

Luxman L509x is absolutely magical (no pun intended!)

Boulder 866

Pilium Leonidas / Odysseus.

When I was doing some research on the Gryphon Diablo 300, I found 2 owners who use Magico S3 (or the special variants of the S3) with the amp. They appear to endorse the combination.

Octave and Magico’s get paired quite a bit. Just stellar performance!

I personally haven’t heard Vitus (you don’t mention which one) or Burmester gear so I’m not familiar with their sound signature. However, based on what I’ve read - smooth and detailed so the suggestion by @ryder seems appropriate as the Gryphon is also well regarded and shares similar attributes.  

Perhaps you could tell us a bit more:

Budget?

Music preferences?

Volume preference?

What you favor in sonic presentation?

Any must haves or must not haves?

New or used?

Best,

If you like the Pass Labs XA30.8, then why not go with a Pass Labs Integrated unit?

@lak +1!

Why an integrated? While there are good or great integrated amps, don’t do it for sound quality when what you currently have is pretty stellar. 
 

I could see depending on your listening level you may want more power than the 30.8 can provide. 

Possibly a darTZeel CTH-8550

I drive my Magico A1s with an Accuphase E470 & it’s complete bliss.

The E470 is class A/B though, so it doesn’t break a sweat handling the A1s with 200+ watts into 4ohms.

The newer version of my integrated is the E480 or Accuphase also has two Class A integrateds if you want to stay with Class A.

I would recommend posing the question at the audio aficionado audio forum. The kind of equipment you are talking about is common fare for that user group. 

stick w pass if you like the sound, finding something you really like is progress in this hobby