I got a chance to listen to some JM Lab Electra bookshelves for a good hour a couple of weekends ago. The first thing I told the audio dealer was could he turn the sub off. He said the subs aren't on! I walked around to make sure. This little bookshelf speaker retails for $2048 / pair. The soundstage they threw was indeed huge. The treble was detailed yet smooth .. never bright or harsh. Incredible speaker but I just got the feeling the treble although not bright or anything was just over accentuated compared to some Spendor S8 speakers I listened to right afterwards.
if i were to buy speakers based on that demo i would have picked the jm labs just because they sounded so much more open and less dull.