Best Amp with Magnepan 3.6's

While I have not heard the combo, some report decent results with the Spectron issue.

From experience, one of the ASP moduled ICE amps, like the BelCanto monoblocs do very well, indeed.
I have the PSAudio GCC250 of 500x2 into 4ohms on my 1.6s

Doesn't Magnepan demo w/Bryston at shows? If true, that should tell you something...hmmmmm

'Test Drove' the Krell 400xi with 3.6s and found it not quiet satisfying, not to mention that in about 30" of moderately loud R+R, it was hot enough to cook on.
If you go Krell, make sure you are properly vented.

Sorry about not being clear: The 3.6 / Krell 400 combo was at the local mag/krell retailer. Sounded nice and nothing special, but ran way too hot.
Even had I been instantly impressed, I would have thought twice. And, while the setup was certainly not 'perfect', I don't believe it rose to the standard of 'improper use'. The maggies had plenty of space to work into and were not crowded. The room was moderately treated and used to demo a very good line of gear. Optimal/perfect? probably not.

The 1.6s are in the next room!

Agreed. My room is currently 100% guaranteed to be the weak point in my setup. All other mods / changes are on hold until I can 'fix' the room.

Of course, WAF is paramount at this point, since wall treatments and clouds are out of the question. Maybe some diffusion behind my panels would fly, but that would require some engineering or at MINIMUM at trip to the artificial plant store.

I am in the process of designing new hardwood frames and investigating rebuilding the crossovers to optimum, but stock design. Maggies are a DIY dream speaker.

Krell makes great stuff and it is still my favorite movie. But, I can't pass the physical to move it in, let alone afford the extra AC to keep the house cool in summer OR, for that matter, simply AFFORD it!!!