Do larger planar speakers produce more accurate sound?

The Levinson HQD system was something I heard MANY years ago, so I cannot say how it would compare with other systems.  It was more than stacked Quad 57s; it had a 24" Hartley woofer and Kelly ribbon tweeters.  At the time, I thought it sounded okay, but not decidedly better than anything else I heard.  More recently, I've heard stacked Quads assembled by MyEmia that incorporate bespoke tube amps that take advantage of the high impedance of the electrostatic panels by not utilizing the kind of output transformers one would normally need to lower the output impedance of the amp to match conventional drivers; the stacked Quads delivered surprising volume and bass impact for a speaker otherwise known for their deficiencies in these qualities.

The big Soundlabs are indeed very nice sounding speakers, but I would not pick them over the better horn systems I've heard (custom made speakers).  I would also like to hear the new Beveridge hybrid electrostatic/dynamic systems; I heard the originals and like it except for the overblown bass response.  

@larryi 

Don't you find that horn speakers sound like a megaphone?

Sure they do chungjh. That's why so many people buy and enjoy them.

Some do have that sort of nasal coloration, some do not.  I am not a fan of most of the current production compression driver systems (e.g., Klipsch, JBL), but systems made with some very special drivers from the like of Western Electric, International Projector Company, Yoshimura Laboratories, G.I.P. Laboratories, Goto, ALE, and Cogen, for example, coupled with the right horn can sound great and not sound like megaphones.  It is the bane of serious horn fans that the most popular and common horn systems, like those from Klipsch, JBL and Altec, do have that tendency if one does not work to reduce that problem and select the right components to complement these drivers.  It is also VERY unfortunate that the best of these drivers can be extremely expensive.  I have a fried seriously looking at a single $14,000 driver which he would buy on-line in a heartbeat if the seller would do something as simple as take a dc resistance measurement.  

My first Magnepan experience was with the MMGW, the small wall-mounted speaker that’s maybe 38”x10”. A friend had them driven by a triode tube amp of maybe 40-50 watts. No bass to speak of, I think about 100hz is it. But the sound! It just came out of the air. A violin was simply a violin, a piano, etc. So I ordered a pair   and found a nice little subwoofer to go with them. At some point a familiar, favorite piece of music played and it just grabbed me emotionally like never before. So that’s what they can do, large or small. That mid-range where so much of music (and life) resides is what they do best. I still have them in my living room, where my wife was thrilled they were so inconspicuous (off-white covers) and didn’t need floor space. I have 1.7s in my listening room with 200 watts and life is good. Sure, when I was auditioning them I was drawn to another setup in another room. Wow, what realism. Oh, $50k+ Wilsons. Very nice, but I kept the $1,400 Maggie 1.7s.