Floor standing speaker recommendations new or used, $10,000 and under


Hello I'm looking to some new speakers and I need some recommendations to audition.  I currently have the Nola Viper IIa, but I'm looking for improved bass and just an improvement in sound overall.

I have a Mcintosh mc7150 power amp and a De havilland Ultra verve 3 preamp.  My source is a musical fidelity cd player.

I have a medium sized room, approximately 20' by 16'. Ceiling is about 9ft high.

I've listened to the Focal Sopra 2. and the Totem Acoustic Hawk, but I'd like to expand my options.
hawk28
Aequo Audio Stilla, Gauder DARC 40,  Piega coax 511, Manger P2. Avantgarde Zero, Naim Ovator S600. All have a very different sound signature.
I'd like to hear more about the JansZen hybrid electrostatic speakers especially the P8 or A8 models.  Some of the others mentioned above would be a little easier to audition. The JansZens are only sold directly from the company and the design is nearly unique. 
@ hawk28

I have sleeper speaker that's under the radar and very few are in the know but coming from Thiel, Vandersteen, Avalon and AZ Crescendos' just to name a few and these Liberty's XVOX is in a class of their own and at 1/4 of the price of those mentioned. These are an entry level if you want to call them that but are made by PBN Audio which says a lot...

Reach out to the distributor, Mike at 11steroe.com and see the many videos on youtube under ocd hi-fi guy. These Liberty speakers are superb!

Wig