New speakers dilemma for vinyls... Heeelp! :)))

@adversam,  I have heard the Voltis and own the Cornwalls.  Both are spectacular.  I think, but am not sure, but Voltis can get pricey as an upgraded finishes cost you and the intro finish is really drab.  Properly finished they are beautiful though.

I think you are smart to have carved out a place or higher efficiency speakers like the Rival and Cornwall given the size of your room and your amp.  

You have a nice system already, which should make this part of your journey fun.  Your preamp is special! 

PS-- The comment above about your post being "dumb" is absurd.  A brief review of that poster's comments on the forum will easily reveal the poster has used that exact, childish and uncool language before--dare I say, troll-esque?   Your post is exactly what is appreciated here.

Adversam, I put together a CleanerVinyl system around 4 years ago when CleanerVinyl was still trying to get off the ground, so to speak. The last time I checked their website it seemed they were much more geared to offering packages, now, and less flexible about a la carte options for people wanting to put together a bare bones or inexpensive system. What I have is the basic motor that turns the records in the ultrasonic bath + a generic ultrasonic cleaner that's necessary for a system like this + 2 adapters that allow me to clean 3 records simultaneously + the lifter device that raises and lowers the records in & out of the bath. I use this system to clean records and a Knosti Disco Antistat to rinse the records. The Knosti is, basically, the German version of a Spin-Clean but, IMHO,  better because the Knosti uses brushes instead of pads. After rinsing the records, I lay them onto large record-sized high-quality microfiber cloths to absorb the rinse water. Then, I set them in the Knosti drying rack to air dry completely. The last step is using a product called "LAST" (no pun intended), a record preservative. Al my records are placed in high-quality antistatic inner and outer sleeves. This is, admittedly, more labor intensive than a fully automatic machine but considerably less expensive. As I think I may have stated earlier, if Degritter could convince me that a cleaning frequency of 120 kHz/300 watts is as good and as safe (for the records) or better than 40 kHz/300 watts I'd buy one for the shear convenience.

The Revel F208 are great speakers but, like all speakers, need to be paired with the right amplification source. Again, I am not familiar at all with your amplification source and certainly don't mean to disparage it. However, based upon specifications alone, it doesn't appear, to me, that it has enough power to drive the F208 to their fullest potential. When I auditioned the F208 with a McIntosh MA5300 they sounded very nice but I thought they needed more power and current than the MAC MA5300 can generate. The F206 sounded significantly better with that amp.

With regard to vacuum record cleaning machines like the Project you mentioned, I don't have any experience using vacuum cleaning machines. My research indicates that good vacuum RCM's are effective but ultrasonic cleaning provides the best results. You could put together a CleanerVinyl system for less than what you'd pay for that machine. Take a look at Michael Fremer's reviews of record cleaning machines on Analog Planet.

A design of Speaker that could change your whole belief system for a Speaker is the Open Baffle Design.
Triart is a Brand that is based in the eu.

A demonstration of these High Efficient Speakers would be a great experience to be undertaken. 

@mesch @jbhiller thanks a lot for sharing your opinion, very much appreciated!

@oldaudiophile thanks again for sharing your cleaning system. Regarding the F208, the dealer used a Teac preamp nt500b with a jeff rowlands 625 s2... No idea, probably just bad sinergy, more likely the speakers needed more hours for breaking in... They sounded really compressed and with no emotion. Also the bass that was supposed to be the Revel's strenght was muddy and slow. Anyway, I was curious the hear the Revels, but after the inputs I'm receiving on this thread, I will update my list considering just high efficiency speakers. At the moment CW IV that I still have to audition in august, the Focal Kanta (at 91db is still decent) and Volti. Still hope to get on this thread some more feedbacks related to Volti Rivals'. Can't demo them, but I have like the sensation that Greg does unbelievable speakers. And in a couple of months he's going to introduce the new Rivals'!