There are those who still feel the best bass QUALITY they ever heard was that produced by the two bass panels of the Magneplanar Tympani loudspeakers; the original T-I up through the final Tympani, the T-IVa. The T-IVa (upon which the new MG30.7 builds) also contains the great Magneplanar ribbon tweeter, and a "pretty" good (;-) magnetic-planar midrange driver. Not quite as transparent as ESL’s, but what is?
One aspect of ESL’s (in fact, all planars) that cannot be ignored is their line-source sound propagation characteristics. Their wave-launch is completely different than that of a point source, and it would appear a person prefers one or the other. When I replaced my Tympani T-I’s with Fulton Model J’s in 1974, I learned I was a line-source man. As with everything, ya gotta learn and chose your priorities, ’cause ya can’t have it all.