Choosing between Cornwall IV, Trio15 or X4 Ultra

I've got a similar size room, although the vaulted ceiling is lower, about 9 to 15 feet. I'm also considering the Volti Rivals and the Pure Audio Trio15 Coaxial.   Would like to hear from anyone who has compared them.  I'll use a Pass Int-25 which should be a good match with either.    There does not seem to be much of a used market in either one, and the Rivals are quite a bit more expensive with shipping, almost double the price of the Trio15.  

I have a space similar to yours, and have CW4’s.  I listen at low volume levels most of the time and really like the Cornwalls.  I like the Volti’s as well.  Guess you pays your money and makes your choice.  Audio Note E’s would also be excellent in your room.

Speaker: Wireworld Eclipse 7 or 8

ICs: Harmonic Technology Magic I or II

I have an open floor plan similar to yours, own the PL Evo 300 poweram,p and also listen primarily to jazz at lower volumes at night. I've owned the Spatial Audio M3 TS which was open baffle but lacked the powered "subs" of the X line. Honestly, based on what I've read, I don't think the subs in the X line will do much for bass in your home. Same for the Trio unless you plan to keep multiple subs in the system.  Although I do feel the Trio is the nicest PAP speaker in their lineup.

The M3s turned me onto concentric designs, which led me to what I consider to be the British Cornwall...the Tannoy Legacy Arden. It's roughly the same size as the Cornwall and within your budget. They offer a great, full sound at lower volume and a well defined sound stage, and play well with long wall placement.  About the only thing I can ding them on is a narrow sweet spot due to the point source nature of the design.

I’m using some custom made bi-wire speaker cables made from Mogami W3104.  Interconnected with audioquest cinnamons. 

Last question to OP: Do you use OCC wire (speaker and IC)?

I won't use anything but...

@dweller yes I did a fair amount of tube rolling.  Mostly with the Freya+. I’ve tried a number of combinations and pretty much stuck with RCA NOS 5692s for the voltage gain tubes and GE NOS 6SN7s for the cathode followers.   I did get some Gold Lion new KT88s for the PL that changed the sound - not impressed.  I have some NOS Mullard 12AU7s on the way. All of my tube rolling  experience has been a change in presentation of the sound but not "body" of the sound. 

@dweller  , I haven't. It did help when I turned the power up but thought to myself why do that when the power is cut in half for Triode and then I just turn it up? I'm sure I'm missing something. I'm only about 19 mos into this journey (recently anyway). That said, I like Ultralinear so much anyway I haven't really tried Triode that much.

@brighamdoc , it sounds like you are going through something similar I had with the M3s and my search led me to Volti and I couldn't be happier. I had considered Cornwall IVs but never heard them or the other speakers you listed. The X4s may do the trick also but most, including me, find you need a well treated room with them - just fyi. Also the break-in isn't complete until around 400 hours - but sound better at 100 and again around 200-ish. I'm glad I went used w/ my Rivals as they are broken in already. I hope a used set comes up for sale for you.

Those Volti Rivals look amazing.

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@laynes - Have you talked to Kevin at Upscale about the Triode sound?

The veiling you describe should be a concern. Does increasing the playback volume make a difference? 

I was hoping but not set on eliminating the subs.
The space where I’m putting the speakers will have them 2-3 feet away from the front wall but with my center console the Cornwalls would pretty much fill the width of the room. 
im not in a hurry so I’ll look into the Voltis 

I’m so grateful for all of your input. It’s nice to get somebody else’s perspective on some thing that I’ve been contemplating for so long.

Agree with Russ. I just bought a newesd set of Volti Rivals which are powered by my Primaluna 300 Evo integrated with KT-150s + Radiotechniques and I'm gobsmacked how good they are. I'm coming from Sapphire M3s which were and are wonderful audiophile speakers but the Rivals (which msrp for 3x more than the M3s) take that same audophile and add a wallop to them that is more like Thor's hammer. 

The M3s were like being in the recording stuidio with the band and the Rivals are like being at a concert. I was not prepared for what they unleash when cranked up to .....5.

New Rivals are $15k but you may be able to find them used as I did. Razz's are around $6,500 and you have subs so that may be the ticket. I was going to buy a new set of Razz wth subs before I found the used Rivals. 

Also, I haven't heard Spatial X series which are better than the M3s so I can't comment on that. 

Dweller - I much prefer Ultralinear to Triode myself. Triode sounds like a think blanket was placed over the speaker to me. But that is why PL has the option - some prefer one over the other.

Volti, like Klipsch but better.

If you want new speakers, that's what you want. The PrimaLuna, OTOH, gives you many options for tube rolling. Pretty sure they can accept all the way to KT150s?

Have you done anything in this direction? 

Are you also planning to use a sub or two?  I ask because I can’t imagine how you will get the impact you desire in a room that big without some form of low end augmentation. 

Thanks for the input

My usual listening preference is ultra linear in the day and triode at night. 

I will just leave this here….

I had Spatial Audio X3s and moved them on for the Cornwall IV.

Do you switch your EVO to triode? This would enrich the sound, don’t you think?

I’m using the Forte 4s which sound very good at low volume. What kind of wire is in your harness?