Sanders 10e

No, not like headphones. I better audition them if I have a chance.

No doubt they have a small sweet spot but not as dramatic as some are indicating.  I heard them at RMAF and was floored.  I thought they were superior to anything else there.  True story.  He was playing a variety of dynamic music which helped the evaluation process....unlike many of the other fine systems which I can only surmise were trying to recreate the atmosphere of a funeral parlor.  

One other thing...I'd be interested to have heard them without the room correction employed.  I think it would have been a different story.  I am becoming more convinced DSP is the way to go.  

I have owned dozens of speakers . All kinds, Stats ,Planars , Box , Open baffle . Each and every one sounds best sitting in the middle of the speakers . Move to the right or left and you lose the stereo imaging . If i am walking around the room doing other things i do not care about imaging . Only when i sit down do i care . Hifi listening is a one person endeavor IMHO

Sanders at RMAF
https://parttimeaudiophile.com/2017/11/03/rmaf-2017-sanders-creates-electrostatic-bliss/

While I think that all speakers have a sweet spot, there are a lot of speakers that do much better with off-axis color and imaging than others. Sanders among the very worst. Revel and Magico among the very best. 

The Sanders stats are really not comparable to almost any other speaker, including ESL's. To call it a "sweet spot" is to oversell it. It is much more like a "sweet dot" from which the most minute movements of your head will detract. 

Best,

E