Audio Physic Spark v. Joseph RM-22 sigs

Ake, I agree with your preference for SETs, but what you didn't like about the Maggies you might chalk up to having to use high power solidstate amplifiers, which as you now know, have all kinds of problems re-creating low level signals with fidelity, in comparison with SETs.
I would love to hear the 1.6s hooked up to something like the VTL Wotans in triode mode!

I have listen extensively to the Audio Physic Spark and Yara (I have no experience witht the RM-22). In my opinion, the Yara has a warmer overall sound. The highs are natural and open. For a speaker of its size, it has a solid bottom end (much better than the Spark). On the other hand, the Spark was too analytical and cold. It was not involving at all. Best of all, the Yara lists for around $1500 (dont't let the lower price fool you!). Use the savings to buy a good speaker cable. I recommend using the Dimarzio Super M-Path with the Yara (yes, Dimarzio is the guitar pickup guy). It is a great bargain at $500 (their power cords are also worth looking into).

The AP will grate on you due to its tweeter. The RM 22 are a better overall speaker, but not that exciting. You may tire of them. At your price points look at Silverline and Dynaudio Contour 1.1 or used 1.3 SE. Do not go after the plain 1.3. Used Meadowlark Shearwaters or new Osprey may be a nice mate to your amps.

Neither will provide the transparency you are used to. Vmps will give the best of dynamic speakers and planar. Sweet ribbons with solid, tunable bass.