Zu audio Soul Supreme vs Prana Fidelity Bhava


I am looking to update  a pair of Spendor SP1 speakers.  I would like to buy a US made speaker and have been reading about Zu Audio Soul Supreme and Prana Fidelity Bhava speakers.  I have not auditioned either yet but wonder if anyone out there has heard these speakers and if so could characterize their sound.  I will be using a Leben CS600 tube amplifier.
Thanks
MP
mpomerantz
I am listening yo my Bhavas right now. They reach down to about 38-40hz. Although some speakers with single 6" woofers claim they can reach similarly low (like my roommate's ProAc SM100s), I feel that the two 6" woofers for each Bhava give the lower registers a bit more meat on the bones.
I have heard the Prana Bhava on two separate occasions and I have to say they are exceptionally musical and well balanced.  One of my favorite rooms to visit when I am at the audio shows.  The Zu speakers are efficient but just not my idea of a long term satisfying sound.  I am kicking around buying the Bhava or the Vayu F/S.  Very nice sound.
This is utter shite: 
I know you have tubes, but Zu’s only exist as a compromise for people with tubes, focusing on easy loads and that’s it.
Poor imaging/soundstage, poor vertical dispersion, and the treble is “loose”.
You know nothing of Zu. What you hear with Zu is a full range speaker, sans crossovers. Pure tone. If that kind of musical reality hurts your ears, re-examine what you're listening to every day. 

Oh and: tubes only? First, flush out your headgear. Then, go listen to them.