Jim Lesurf wrote:

In article , Ian Bell
wrote:


It has a lot to do with the positions of the HF and LF drivers and your
listening position. These result in errors which can muddy the stereo
sound field. The only real solution is to use dual concentric speakers.

Interesting. I'd suspect most people wouldn't immediately think of the
Quad
ESL63's as 'dual concentric'. :-) More like 'multiple quasi-concentric'
or 'phased array', though. They image quite well, though.

In some senses this is not surprising since they have little LF response and
most positional information is in the higher frequencies.

Ian