Originally Posted by spritzer
The tone on the 009 doesn't suit me at all but I also never felt they were truly superior to the other Stax flagships. More impressive, yes, but they never gave me anything new. I'm long past being moved by impressive treble and associating it with better detail retrieval.
I had to comment on this even though my comment is off topic. I have a long history in high end audio as a retailer and then manufacturer, seems I've heard it all come and go. Most of all I am a music lover. I totally agree with Spritzer here. If the 009 were priced to come in under the 007 and submitted as a cost savings version from Stax I believe all (or most) would hail the continuing superiority of the 007, calling the 009 lacking body, too much treble, and not solid enough presentation.
To go back on topic, these magnetic planars have a big flaw, technically, not being symmetrical push-pull. In my experience, all such drivers really lack something in terms of directness and clarity. Non-symmetry of a driver, in terms of force change versus displacement in both directions, is something very much to be avoided in driver design and results in both increased harmonic distortion and intermodulation distortion when multi-tone testing is done.
As for looks, they more remind me of medical equipment or orthodontic gear. Not bad for testing of prototypes but hardly the look of finished, refined product, IMO.