Wilson Audio Chronosonic XVX First Impressions

I just spent over six hours today listening to my friend's new Wilson Audio Chronosonic XVX loudspeakers. Consistent with being blown away by the Master Chronosonic + Master Subsonic system at Maier Shadi's demo in Santa Monica, and consistent with a couple of reports by people who auditioned at Maier's both the Master Chronosonic and later the XVX and preferred the XVX, I am here to report officially that I think the XVX is now my favorite conventional cone driver speaker system. I think I prefer the XVX even to my longtime favorite dynamic driver loudspeaker, the mighty Rockport Arrakis.

Prior to the XVX, my friend had the Alexx. The height alone of the XVX over the Alexx affords the system the height and scale and grandeur I always notice and appreciate from very tall loudspeakers.

I don't know why the XVX is an order of magnitude better -- next level better -- than the Alexx. But I am certain that it is.

I think the XVX is the first dynamic driver speaker of which I was very aware that you can hear seemingly almost everything at fairly low listening volumes. It doesn't need to be played loudly to be heard comfortably.

In much the same way that people like to applaud their digital playback systems by saying "it sounds like analog," dynamic driver loudspeaker aficionados like to say their cone speakers have "electrostatic-like transparency." Believe me, if most dynamic driver speakers had "electrostatic-like transparency" we would not need electrostatic speakers.

As somebody who loves electrostatic speakers I have always been aware that speakers of other topologies are one or two steps less transparent than electrostatic speakers. I feel like the XVX truly has "electrostatic-like transparency" -- at least credibly so, and more so than any other cone speaker I've ever heard.

Just like I felt about the Master Chronosonic the XVX gives one the sense of unlimited dynamic capability. There is a limitlessness and an effortlessness to the sound that I do not hear from other box speakers. Other heroically inert box speakers sound tightly wrapped or button-downed by comparison -- like some portion of the sound is trapped in the box and having trouble freeing itself. The XVX sounds open somehow -- a sonic presentation I associate with planar speakers, not with big box speakers.

I know, I know, I know. I am thinking and saying the same things you are: these are meaningless statements as you can't compare loudspeakers in different systems from fault-prone memory; you will never be able to hear an XVX versus a Rockport Arrakis, or an XVX versus a VSA Ultra 11, in the same room with the same associated components at the same time, etc., etc. I know, and I agree with you.

All I am saying is that if you put a gun to my head and told me I had to buy a dynamic driver loudspeaker system for my personal system and cost was not a factor. . . I would say take the gun away from my head. Then I would tell you I will order XVX + Master Subsonics.

Without intending to be coy, I couch this is terms of "the XVX is the box speaker I would I buy if I had to buy a box speaker for myself" rather than "the XVX is the best box speaker I've ever heard," because I cannot hear the Von Schweikert Audio Ultra 11 and the Evolution Acoustics MM7 and the Rockport Arrakis and the YG XV in the same room in the same system as the XVX + Subsonics. So it just does not make any sense to declare, and it is analytically defective to declare, that the XVX is the best speaker I have ever heard.

My view that if I had to buy a box speaker I would buy the XVX + Subsonics is a combination of what I heard from the XVX, what I vaguely remember from hearing these other other speakers in other systems, and my slight prejudice against ceramic drivers which I would be worried I might find uncomfortable over a long period of time. (I would worry the same about beryllium drivers and about diamond encrusted drivers.)

I have owned only planar loudspeakers my entire life. I literally couldn't bear to listen to Wilson Audio speakers with metal dome tweeters. I have never been a big fan of Wilson Audio speakers in general. But I thought I heard magic from Maier's demo of the Master Chronosonic, and my experience today proves that that inkling was correct.

I don't know how or what Daryl Wilson did to achieve it, but I am reporting that to my ears the XVX is a very, very special speaker. It is a stunning achievement in dynamic driver loudspeaker design specifically, and in loudspeaker design in general.

PS: Assuming they physically fit in Michael Fremer's listening room, I have no doubt that Michael will upgrade his Alexx to XVX. He might go in not wanting to upgrade, but after hearing these there is no way he's going to be happy without the XVX.

Wilson-XVX.jpg
 
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No, some promote using an high power RF triode in non linear zones and not supplying proper specifications to consumers. Fortunately Lamm does just the opposite - they supply comprehensive sets of measurements with their electronics - people know what they get.
You need this one 1000watt class a distorion under 3% true balanced design used for 5-7k€. That thing blows your wilson in ashes.
these are men's tubes philips el 6471 mono amps847a0fe42cf86836f865a7985f509db2.jpg
 
David,

Constellation Audio had similar reserves around high power amplifiers, so they solved the problem intelligently - their power amplifiers use several equal amplifiers connected in series, something that does not affect sound quality.

Let us use our imagination. Assuming we choose to operate the amplifier without any feedback If we connect the output windings of the output transformer of four ML3 in series using the 4 ohms taps we get a 128W composed amplifier with an output impedance of 16 ohm. Should we assume it sounds poor?

Just to say that IMHO if designers wanted to design a medium/high power amplifier with SET sound they could do it easily. They do not do it because they think there is no market for it.
Francisco,
I can only go by what’s available and what I’ve experienced not make any assumptions what 4 wired up ML3s would be capable of. I have no opinion of Constellation’s connecting of amplifiers for additional power but I have an opinion regarding their sound quality, for me it’s among the least appealing sonically “high end” labeled electronics I’ve heard; we measure success in different terms.

david


I strongly disagree that series amplifiers can't sound different than a single. Besides that they have to be bridged and need a head to control it. This wouldn't work with ML3's. You need designated + and - signals to each half for bridging, and the limitations of one amp will limit the pair on the + or - side when trying to use 4. So even in this fantasy you'd be limited to two amps to begin with. Basically a big mess of no that won't work.

Whatever Constellation is doing, you can't argue it can't affect the sound... any such amp needs excessive capability to work off each other and a head to control it all. You've added a lot of complexity at this point. Frankly some of the sound could simply be from all sorts ringing that the whole unit does.
 
David,

Constellation Audio had similar reserves around high power amplifiers, so they solved the problem intelligently - their power amplifiers use several equal amplifiers connected in series, something that does not affect sound quality.

Let us use our imagination. Assuming we choose to operate the amplifier without any feedback If we connect the output windings of the output transformer of four ML3 in series using the 4 ohms taps we get a 128W composed amplifier with an output impedance of 16 ohm. Should we assume it sounds poor?

Just to say that IMHO if designers wanted to design a medium/high power amplifier with SET sound they could do it easily. They do not do it because they think there is no market for it.

I think it is not as easy to have both power and beauty in one amplfier
 
As far as I could see from a few available measurements some of these amplifiers are simply euphonic high distortion adders after 30-40W. Some people love them because they use them with high efficiency speakers and typically ask them to peaks around 5W.
If you only need beyond 30-40 watts for a few ms then it doesn’t really matter if it has elevated distortion as long as it’s not a hard clipping, which will be very audible. You could then think of it more as a 30-40 watt amp with 3-4dB dynamic headroom….quite useful I would say.
 
That looks like proper fun!
Yes a bit dangerous high voltage need be refurbish most times.
3.2kv anodevoltage/quiescent current 280mA tube need 380 volt mains 3 phases. weight 330lbs frequency response full load 25hz -15khz +- 1db. sounds pretty good.

P.S
always observe the one-hand rule when working on something like this.
 
Forgive me for responding to this slightly off-topic line of discussion, but my personal amplifier “fantasy” alternative to high-power push-pull is an SET amplifier in the 120 watt to 150 watt range. There is a market for this, and manufacturers do make this product:

SET:
Audio Music 833S Ultima (130w)
NAT Magma HPS (170w)
Trafomatic Drina (140w)
Wavac 833 (150w)

PSET:
Allnic A-10000 (100w)
MastersounD PF-100 Litz (120w)

Add Audiopax M100 (100w Single Ended Class A1) designed by Delima

delima was my favorite designer ,
 
Audiopax M100

Zero Feedback Single ended Topology: Class A1 (12TAA7 KT88)

Maximum output power : (No Clipping)

100W RMS at 1KHz, 8 ohms (KT88)

130W RMS at 1kHz , 8 ohms (KT120) optional.

Frequency Response: 15Hz to 90KHz
 
I hit the proverbial brick wall with that choice, high powered amplifiers simply didn't sound as good as some of the 50w> ones I heard, those system had magic and naturalness that. IMO and IME never found a high powered amplifier at any price that sounds natural or particularly engaging, irrespective of topology, in fact I even prefer SS amplifiers over tube variants I owned when going that route with inefficient difficult to drive speakers.
Nelson Pass in a moments of candor said there can be a problem with 'current sharing', which seems to degrade the sound as one goes from simple single ended single device amplifiers up the chain to more devices and more feedback and more power.

He may have bit his tongue after he said it, since he manufactures and sells toe stubber Hummer amps, but he started First Watt with power limitations for a reason.

He also favors certain distortion profiles.

It's a good argument for choosing more efficient speakers.

A consistent distortion from a simpler amplifier with fewer devices and low or no feedback seems to be something the psychoacoustic ear accommodation handles better.
 
What a beast of an amp! I have never heard of it. Tell us more! And those tubes? Are they home space heaters or something from the Jetson's? Wowza!
I think your listening room needs to be in the Hoover Dam complex right next to the generating coils for this to work.

The brownouts in the slot machines in Vegas wouldn't make you any friends.
 
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Nelson Pass in a moments of candor said there can be a problem with 'current sharing', which seems to degrade the sound as one goes from simple single ended single device amplifiers up the chain to more devices and more feedback and more power.

He may have bit his tongue after he said it, since he manufactures and sells toe stubber Hummer amps, but he started First Watt with power limitations for a reason.

He also favors certain distortion profiles.

It's a good argument for choosing more efficient speakers.

A consistent distortion from a simpler amplifier with fewer devices and low or no feedback seems to be something the psychoacoustic ear accommodation handles better.

It's not typically a problem with most units but when you mix too many transformers and topology that can tug independently then odd things can happen. So in his case it's probably better not to give false fears.

If it's a big problem you'll have some parts being MUCH hotter than others, when they shouldn't be.
 
What a beast of an amp! I have never heard of it. Tell us more! And those tubes? Are they home space heaters or something from the Jetson's? Wowza!
QB3.5/750 powertubes
6 dcg4 /1000 tube rectifier powertubes 3phases
Input stage e80cc / 2× e80l
Driver for power tubes 2×el34
2×dcg1 /250 tube rectifer input+driver
P.S
Used as stadium amplifer 1955-1960?
 
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I strongly disagree that series amplifiers can't sound different than a single. Besides that they have to be bridged and need a head to control it. This wouldn't work with ML3's. You need designated + and - signals to each half for bridging, and the limitations of one amp will limit the pair on the + or - side when trying to use 4. So even in this fantasy you'd be limited to two amps to begin with. Basically a big mess of no that won't work.

Whatever Constellation is doing, you can't argue it can't affect the sound... any such amp needs excessive capability to work off each other and a head to control it all. You've added a lot of complexity at this point. Frankly some of the sound could simply be from all sorts ringing that the whole unit does.

I am not addressing bridging, that needs phase inversion. I am addressing connecting the independent windings in series, running the amplifiers in parallel. As long as we do not have feedback from the output transformer, the secondary is floating, making this possible.
 
QB3.5/750 powertubes
6 dcg4 /1000 tube rectifier powertubes 3phases
Input stage e80cc / 2× e80l
Driver for power tubes 2×el34
2×dcg1 /250 tube rectifer input+driver
P.S
Used as stadium amplifier 1955-1960?
Holy crap. I don't think you can even buy fire insurance if you own a device like this
Why doesn't this dial go to "11" and why is it only set to "9"?


Screen Shot 2022-10-24 at 3.54.24 PM.png
 
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You need this one 1000watt class a distorion under 3% true balanced design used for 5-7k€. That thing blows your wilson in ashes.
these are men's tubes philips el 6471 mono ampsView attachment 99382

Thanks- great looking, but as far as I could see it is a classical pushpull design, not a SET.
a1.jpg

VTL also manufactured a 1250W beast in the past, the Wotan. I almost got a pair long ago, they were being sold very cheap 50 km away from me. But fortunately the weight and size forced me in reason ... I stayed with the MB750 for long, just 12 power tubes each, half of the Wotan.
 
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