Anyone listen to Zu Audio's Definition Mk3?

I have had my Definition Mk4’s since Dec 20th and I use them with 5 other guys for doing blind testing of cables. We prefer a speaker with no crossover in the vocal range. The Nano driver is very fast and super revealing without be harsh in any way. The sub and sub amp are very well matched. After owning over 300 different speakers in my life I discovered Zu about 2 years ago. I have tested almost all Zu speakers and the Definition Mk4 is the best all around speaker I have owned in 30 years and also one of the least expensive speakers I have owned. If I didn’t like it would have already been up for sale. Make sure your cabling is up to the task and you will be in the recording studio with the artist; a true emotional experience.

As contented owner of Def2s, just a couple of things. Firstly, I've always loved the 'tone dense' sound of the Def2s, even though this is at the expense of best possible treble extension; so is the new Radian tweeter on the Def4s an improvement in this area?
Secondly, the massive bass output of the Def2s have led to room nodes issues, but I've been able to better integrate bass from the speakers into my room using the SpatialComputer Black Hole attenuator. Does the use of the single downward firing sub really improve upon the 4 rear firing drivers of the 2s?
Regards, Marc

I have also owned the Def 2 and truthfully they are an absolute steal for the money. They are not perfect but the things they do well they do very well. The Definition Mk4 is a different level and in my opinion competes very nice against any speaker in the $50K-$100k area. To answer both your questions; yes and yes. The Definition Mk4 is a different level and after owning much more expensive speakers I prefer the Definition Mk4. I will not go into the sound because that will be dependent on your equipment and cables but for me this is the best all around speaker I have heard.

Gsm18439 - the rear firing base array is not replaced as part of the Mk III upgrade. One other item of note is Zu said they would only be doing the Mk III upgrades until this fall.

Then the bass will be superior - tighter, deeper, more articulate.