" Has anyone compared Magnepan to Martin Logan? "
I have owned both, so yes, but that was years ago and Martin Logan’s product line now includes a wider range of formats. The ones I owned had a tall electrostatic panel sitting atop a short woofer box. The Martin Logans were better at some things, and the Maggies were better at some things.
But there is one inevitable acoustic characteristic of the tall panel/short wooferbox format that you should be aware of, and unfortunately it’s not common knowledge. First a bit of background:
Sound propagates differently from the point-source-approximating woofer than from the line-source-approximating panel . Sound pressure levels falls off by 6 dB for each doubling of distance from a point source, but only 3 dB for each doubling of distance from a line source.
This means that the tonal balance of a hybrid electrostat with the tall panel/one woofer configuration changes with distance because the relative loudness of woofer and panel changes with distance. The farther back you are, the louder the panel is, relative to the woofer. I have measured this and it’s not just theoretical; it’s real.
In my opinion the key to a tall panel/single woofer hybrid adapting to a wide variety of room sizes and/or preferred listening distances is adjustability. The relative loudness of woofer and panel should be user-adjustable. I don’t know whether that is the case or not for their current line.
Duke