Luxman 509x or Simaudio 600iV2 with mágico A3.

I heard the A3 with the Mark Levinson 585 integrated. It was a really good pairing. I have heard the 509x and found it a little underpowered even with Harbeth. I have not heard it with the A3 which are likely harder to drive. I also felt the 509x was a cleaner sound than the Hegel integrateds and separates. The A3 seemed to like power based on how my single stereo Benchmark AHB2 sounded terrible with them.

I have owned 2 integrated amps that would be great with the A3. The CODA CSiB and the KRELL DUO XD 300i. I think a little warmth matches well with the A3.

I have heard the prior top end SimAudio gear, and I am not sure if it is a good sonic match with the A3.

I have owned a Luxman L-509u powering Verity Audio Parsifal Ovations speakers and more recently a Luxman L-595A integrated amp.  I own a Sim Audio Moon transport and have looked at some of their amps but have not had any in my system.

The Luxman build quality looks to be at a higher level than Sim Audio.  Not that Sim Audio is bad, just that Luxman is more refined.

I had the A3s with the 509x for a while. It is a good pairing. I never felt the amplifier was wanting in any way. It has good bass, is dynamic and somewhat exciting (not boring at all) and has good sparkly highs. I used Nordost cables with this pairing, fwiw.

I also had in my room with the A3s the JRDG Continuum S2 integrated, and also Primaluna 150 w/ch monoblocks.  These both were boring with the A3s. 

I had 590 before and wasn't my cup of tea.

Is it the 590AX or 590AXII? The latter is reported to be noticeably better.

I think he meant the Hegel H590.