Dave- For the record...

I have owned the latest Quad electrostatic speakers continuously since
1974. Currently we have one "all Quad" 988 based system (I prefer it
to the 2905) set in the house, along with a pair of Hill Plasmatronics
1A's, and two sets of Gale GS401's right now- one chrome, one walnut
finished. I have visited the Quad factory three times and was once
offered a job by Peter Walker. Also a member of a number of
professional audio groups, and personally taught TEF operation by Dick
Heyser. Dick hated Quads by the way- once destroyed his favorite
amplifier. Suffice to say I do appreciate Quad even if Dick did not.

I have also owned a set of Yamaha NS1000's. Not a superb speaker, but
an excellent speaker. Nice resale value as I recall. Most of the
mastering engineers in Hollywood dangled a tissue over the tweeters as
I recall back in their heyday.

Getting past the "toaster" comments, the reason the Gales have an
excellent midrange is the Peerless driver they used is optimized in
the crossover- there's some serious audio engineering that transpired
in the design. The crossover points are outside the vocal
bandwidth. The list of speakers that don't crossover between 400 and
4 kHz is a very short one indeed.

I've never actually read where Quad specified their crossover point
between the bass and treble panels- likely because it was within the
vocal range and would damper the "perfect midrange" commentary.
Difficult to measure the high voltage bias. I'll sweep them and
measure it acoustically one of these days.

P.S. The Gales use twin EIGHT inch drivers are run in parallel and
perform nicely at the low end.