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Stereonet Australia Show 2025

KEF and Richter.

Thank you for the thoughtful answer and introducing me to Richter.

It looks like I will to have to continue to choose manufacturers who produce in the far east if I want to continue to enjoy reasonably sized floorstanders, as I just can't convince my wife to spend five figures for speakers. I will have to continue to enjoy mid-fi, but then at least the mortgage is paid in time.
 
To spend 10 or maybe even 20k on a pair of loudspeakers might possibly be woth it. For 100k, just buy your wife cello-lessons...
Yeah I'm really interested to hear the KEF Blade 2 Meta. Still, $70k of violin lessons might be overkill XD
 
This was on again over the weekend at the same location they use every year. Previous show reports: 2024, 2023.

I have to say that the standard of the show improves every year. Earlier shows suffered from overcrowding and general poor sound due to demonstrators bringing wrong speakers for the rooms (either too big or too small). There was also a lot of sound leakage from HT demonstrators. This year the show has expanded, occupied more floor space, and the HT guys were shoved into a corner of the show where their explosions couldn't bother the rest of us. So the overall organization of the show is much better - kudos to the guys behind the scenes. Excellent work!

Some negatives though: the food options were awful and expensive, the coffee was insipid. It's the hotel's fault and not the organizers. Also, this year there was a huge protest in the city with thousands of protestors and counter-protestors, and hundreds of police which stopped a lot of people from attending on Sunday. Good for us who managed to get there, not so good for those who were stuck when public transport was brought to a standstill.

Anyway, on with the show report. I had more time this year, and I chatted with other show goers and made sure to visit the rooms they rated highly.

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My highlight of the show was the Alsyvox / Aries Cerat room. They were showing the baby Alsyvox speakers - the Tintorettos. These are 3 way planar ribbons. I have read a lot about Alsyvox on WBF, and those guys think it is amazing. I have to agree. They really do everything - throw a wide and stable image with a lot of depth, excellent separation of instruments, excellent reproduction of timbre. But what was really more impressive was the tactility of the sound - you can actually feel the sound in the way that you can feel a real instrument in the room. Complex and loud orchestral music is a good test - if you can still hear separate instruments with their timbres preserved and no smearing when the orchestra is going full tilt, it is doing very well. These things did reproduce Shostakovich very well, but there was some smearing in the midbass. I could also tell that they must be quite directional because the tonality shifted quite a bit off-axis. They aren't laser focused like some other panels, but they were probably about 45deg. My guess.

I grabbed as many friends as I could and visited the room over and over. They were all impressed. One of my friends is the Australian distributor for Klippel and a speaker manufacturer - a hard nosed objectivist if you've ever met one. I told him what I thought of the sound, and I asked him what is producing that tactility (he heard it too). He thought that you might see it in the CSD. "Being planars, the CSD would be very impressive. There will be no box resonances and it should be very clean". But the tactility? He did not know. My theory is that these things probably radiate like line arrays which means that most of the time we are sitting in the acoustic nearfield where the sound does not decay according to the inverse square law. But in the end it's all speculation - until we see some measurements of this thing, we just don't know. The demonstrator wasn't very knowledgeable in that regard, he was more interested in telling me about amplifier and speaker cable pairings, but he did promise me he would obtain measurements from Alsyvox if I email him. I am not likely to email him because of the stupendous price of these speakers - AUD$145k (USD$95k). But it might almost be worth it because I have never heard a speaker that does tactility and timbre like these speakers do.

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Directly opposite the Alsyvox room was my other highlight - the YG Acoustics room driven by Vitus amplifiers. These were the Sonja 3.2 speakers and retail for AUD$179k (USD$117k). Another stupendously priced loudspeaker. I know from my own measurements of a cheaper YG model that those things had a flat frequency response at listening position which means they likely had a rising frequency response at 1m. The owner of that system spent a lot of money on a professional acoustician who treated his room, so IMO his system sounded much better than this one (yes Sam, if you are reading this, that's you!). The construction of these Sonjas is impressive - all aluminium and the finish was impeccable. This system had a very sharp attack and the dynamics were very good. It has the same tactility as the Alsyvox but the tone was on the brighter side. The room supplied by the hotel was identical, but this room had more issues than the Alsyvox room - probably because the speaker excited the room differently. The sound wasn't bad, I could easily live with this system. Unfortunately, it costs more than the system next door and it was less convincing.

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This was the Wilson-Benesch / Halcro room. WB was demonstrating the Discovery 3zero speaker, and Halcro showed off their Eclipse monoblocks capable of 300W RMS sustained and 2.1kW peak. This room was highly rated by subjectivists at the show for its clean sound, and I had to agree. Those shiny things you see at the bottom is a woofer. This thing is configured as a 2 way with isobaric woofers. It misses out on the bottom octave and it badly needed a subwoofer. There were no sonic flaws that I could detect. The demonstrators were smart enough not to load the room with listening chairs. 6 seats, one sweet spot, and that's it. Everyone else had to wait. If you managed to claim that sweet spot (as I did) you would be rewarded with sound almost as good as you would get at home. It sounded a little lean, but it was neutral and the imaging was quite good given the limitations of the room.

I asked the demonstrator a rather naughty question - "The predecessor of this amplifier was rated by Stereophile as the best amplifier in the world, with 1 part per billion of distortion. What improvements have been made from that? You can't hear distortion that low, why buy this amplifier (AUD$140k/USD$93k) when the superseded model is selling for such a heavy discount?". He went on about oscilloscopes tell you one thing, but you need to design amplifiers with your ears, and these sound better, etc. IOW he tried to feed me a bunch of marketing. That's ok, he didn't work for Halcro, he was the distributor. I would be disappointed if an engineer said that, but a distributor is a businessman, not an engineer.
Thanks @Keith_W for the great report! While I have never heard the Alsyvox (they are rare birds at US shows for some reason), they seem to be very well regarded, so not surprised by your experience. I am a major planar fan and have really enjoyed the Diptyque and Clarysis at shows. Big planars have a realism that I have just never heard from another system (well, except maybe my new speakers that are a DSP based fully active planar/cone hybrid). Between the two, ultimately I preferred the Diptyque. Hope I get to hear the Alsyvox some day! Thanks again.
 
Next year Amir should get a room and demo the Ascilabs lineup at the Stereonet show.
That will stir up things!
I would actually head down to attend lol
 
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This is DEQX's new Class O amplifier. I asked ... "Class O? Never heard of it". Answer: that's because they invented it. "O" stands for "Open Loop", so it is an open loop Class D. An amplifier designer I was with thought that it was crazy to design an open loop amplifier. But me, I have no opinion. I have no interest in amplifiers - to me, if they do the job, and don't go unstable, they are fine. Can someone tell me what's wrong with open loop amplifiers? Genuine question - I don't know the answer, and I am not here to promote or defend them.

As you can see, it's a tiny little thing. See the Dante network port for an idea of its size. There is no power supply, it receives power from PoE. The outputs labelled Ch1 and Ch2 are speaker level outputs. It makes 30W RMS, but is capable of 300W for 300ms. This design means that it is severely limited with compatibility, and MUST be used with a Dante and PoE.

I dunno man, I like the idea of a linear-phase Dolby decoder, but this thing is really niche. Almost as if some engineer went wild with a minimalist concept without a marketing guy (sometimes you need them) putting the brakes on that idea. They are selling it as an AV preamp with the flexibility of choosing as many amplifier output modules as you need. I didn't ask about price, but it better come in at less than AUD$1000. Because I can think of some other Class D amps without the same limitations of compatibility that I would rather own. I mean, there is a reason why all other AVR's have XLR outputs instead of Dante/PoE outputs. You don't get the flexibility of up to 64 Dante endpoints, but i'm not sure the average HT needs that many endpoints. Maybe they aren't targeting the domestic market.

The PoE+ Amp reminds me to the Powersoft Nota 140 Amps
 
Was there a speaker/electronics you liked under, let's say, 3000 OZ dollars?
dealer mark-up
Even without dealer mark up it's hard to make anything local at that price.
The good thing about Australian manufactures is that they have to make something that is better than international manufactures at the same price just to compete.
 
Great!! If you know him, maybe you could pester him to share measurements of his speakers.

This is an opinion that has been gestating in my head for a couple of years, and I don't know if it's true or not. It started off when I read David Griesinger's presentation on "proximity" where he said that live instruments have a clarity and energy that is lost if you listen further than a certain distance. He called this the LLD, or Limit of Localisation Distance. It is caused by loss of phase coherence due to room reflections.

Then I started reading about phase audibility. Toole and Linkwitz say it isn't audible, JJ says that it is. I have linearised the phase of my speakers with DSP, and I think it sounds much clearer than the minimum-phase version. So I am tentatively convinced that phase coherence is important.

And then I started reading Don Keele's and Ureda's publications about line arrays. The difference between line arrays and conventional speakers is that they are deliberately designed so that listeners remain in the acoustic nearfield. The variables are: listening distance, height of the speaker, and wavelength. If you sit further away, you will need a taller speaker. The claimed characteristics of the acoustic nearfield are: SPL drops at less than the inverse square law - meaning the speakers don't seem to drop in volume when listened closer or further away. Of course, line arrays are not the only speakers that do this. My horns seem to do this as well, and so do some narrow radiating dipoles.

This also means that direct sound predominates over reflections. And if direct sound > reflections, maybe that means that you are within Griesinger's LLD so the "proximity" effect kicks in.

There is something going on here which I can't fully explain. I'm not saying it's not explainable or measurable, but the explanation requires a more advanced understanding than what I currently have.



I AM in Melbourne - I live here! You can find a lot of places selling great coffee, but not in that hotel. Having travelled the world, I can say that nobody does coffee better than us. Specifically, this city. There is great coffee in Sydney, Brisbane, and Perth, but you are just as likely to run into insipid coffee as you might run into fantastic coffee.
So, it is a long discussion on how to measure large panel loudspeakers, and more in general, if our current method of measuring speakers is the ultimate tool to predict the quality of sound reproduction. Over the years I have become more of an objectivist, subscribing to ASR and cancelling subscription to The Absolute Sound. I have been very well served by Amir’s recommendations, and enjoy very much the dethroning of expensive cables and DACs. I did not have measuring equipment when I listened to the Alsyvox. And I was happy to see Daniele again, maybe biasing my attitude. However, boy how well they did sound on my FLAC files!
 
So, it is a long discussion on how to measure large panel loudspeakers, and more in general, if our current method of measuring speakers is the ultimate tool to predict the quality of sound reproduction.

That is a question that I am still trying to answer myself. I do not take a dogmatic position, i.e. "everything we measure is all you need to know about loudspeakers". My position is more "I can hear that. Where is it in the measurements?". If I don't know the answer, then there are a few possibilities: (1) i'm imagining it, (2) I am unaware of what measurement corresponds to what I hear, (3) I am using the wrong measurement technique/procedure to answer the question, or (4) the measurement technique has not been invented yet.

In this case I am convinced that the "tactility" of the Alsyvox is real. There is a very strong sense that the musician is in front of you. It's not just the imaging, it's the way you can almost feel the sound as if it's tangible. I checked that I wasn't drinking the Kool-Aid by dragging people along to go listen. I am still exchanging WhatsApp messages with other objectivists who heard them, one of them told me today that he can't get the sound of that speaker out of his head and he really wants to unlock the mystery.
 
Can someone tell me what's wrong with open loop amplifiers? Genuine question - I don't know the answer, and I am not here to promote or defend them.
Higher distortion and output impedance than an amp using feedback unless they've made a groundbreaking discovery. Given the almost inevitable output filter on a Class D amp it's likely to have similar speaker impedance sensitivity to the other Class D amps without post-filter feedback, so potentially audible frequency response variations with speakers that have large impedance changes.

I don't see any mention of the Dante products or "Class O" on their web site. Maybe they'll have an explanation in due course.
 
Higher distortion and output impedance than an amp using feedback unless they've made a groundbreaking discovery. Given the almost inevitable output filter on a Class D amp it's likely to have similar speaker impedance sensitivity to the other Class D amps without post-filter feedback, so potentially audible frequency response variations with speakers that have large impedance changes.

Thanks. I have since had it explained to me by a friend. Apparently there may be concerns about stability as well.

I don't see any mention of the Dante products or "Class O" on their web site. Maybe they'll have an explanation in due course.

There are a lot of things which are not on their website. They have two amplifiers in production - a 4ch amplifier (those nondescript black boxes in some of the photos) and that Dante/PoE amplifier. And that Dolby processor is also not on the website.
 
The room supplied by the hotel was identical, but this room had more issues than the Alsyvox room - probably because the speaker excited the room differently.

Yeah, the rooms at audio shows.

Audio shows are great but I sometimes they feel really fundamentally flawed. As we all know, a small rectangular hotel room (with the bed and furniture removed) is something of a worst case scenario for acoustics. Even if distributors acoustically treat the rooms, they are almost invariably too small to really showcase anything larger than a bookshelf speaker.

Don't misunderstand. I heard some really fantastic rooms at the show I attended. And our own homes are of course usually not acoustic masterpieces...
 
Hi @Keith_W , many thanks for the impressions and pictures. I have visited Melbourne a few times in the last ten years and can vouchsafe for the quality of life to be had in this magnificent city.

I am a bit saddened though that Hi-Fi manufacturers seem to be pushing the Veblen Goods category further and further. The law of diminishing returns tells us that the benefits (if any) of these overengineered things at these astronomical prices are fractional.

Was there a speaker/electronics you liked under, let's say, 3000 OZ dollars?
Well, if you read the latest from NY Times, about the rise of the upper class in the US: "Disney and the Decline of the Middle Class", get used to more and more of it.
Like how various tube amp manufactures couldn't sell in Japan (in the 80s & 90s) until they jacked up their prices, and then they they got the good reputation (if it's expensive, it's got to be good!)
Thankfully we're all mostly here to counteract that problem, and do our part at counteracting the (c/o Doctorow) "Enshittification" of the Audio industry.
 
3000 OZ dollars?

what did 3000 oz get you in terms a TV, or a computer 50 years ago? compared to today?

meanwhile speakers have moved forward at a glacial pace. with still same old flapping rubber surround and flip flopping damper (spider) and analog everything.

enshittification in audio just gets worse and worse.
 
I am still exchanging WhatsApp messages with other objectivists who heard them, one of them told me today that he can't get the sound of that speaker out of his head and he really wants to unlock the mystery

As you know Keith, I’m a big fan of dipole speakers (owning both open baffles and electrostats). I really liked the Fonica and the Soundlabs (as well as the locally made OAD open baffles).
Having said that, I really didn’t get the fuss about the Ares/Alsyvox room. Go figure.

Thanks for the fantastic show report too (you should post it on SNA as well :) )!
 
Thanks for the fantastic show report too (you should post it on SNA as well :) )!

Nah. I would rather discuss the merits of the show without getting into arguments about power cords, DAC's, or streamers. In fact, all I cared about was speakers and rooms. The amps only mattered if they were inadequate.
 
Well, if you read the latest from NY Times, about the rise of the upper class in the US: "Disney and the Decline of the Middle Class", get used to more and more of it.
Like how various tube amp manufactures couldn't sell in Japan (in the 80s & 90s) until they jacked up their prices, and then they they got the good reputation (if it's expensive, it's got to be good!)
Thankfully we're all mostly here to counteract that problem, and do our part at counteracting the (c/o Doctorow) "Enshittification" of the Audio industry.
Hi,

many thanks for sharing this amazing article. Very thought provoking and quite excellent. As a citizen of the EU, I fortunately still have access to quality speakers at a reasonable price, but hell, that was an eye opener.
 
3000 OZ dollars?

what did 3000 oz get you in terms a TV, or a computer 50 years ago? compared to today?

meanwhile speakers have moved forward at a glacial pace. with still same old flapping rubber surround and flip flopping damper (spider) and analog everything.

enshittification in audio just gets worse and worse.
Well, there are some companies (Q-acoustics, KEF, Wharfedale) that still produce quality speakers at reasonable prices.
 
meanwhile speakers have moved forward at a glacial pace. with still same old flapping rubber surround and flip flopping damper (spider) and analog everything.
It's funny...

It's moving at a glacial pace in the hi-fi/mid-fi worlds.

Everywhere else, there is really exciting audio engineering going on. Modern Bluetooth and laptop speakers are pulling out all of the stops to produce passable sound from tiny form factors. Macbook Pros have six-driver arrays. Two tweeters and two dual-opposed "woofers" and some great DSP programming. Mainstream Bluetooth speakers are almost as advanced; so are many of the Creative Labs Pebble speakers I have noticed that even built in TV speakers seem to have made major leaps. I would assume they are leaning into the same kinds of tricks.

I understand the reasons why actual hi-fi speakers have kind of stalled out in terms of progress, though.

They are somewhat of a solved problem. The same old "flapping rubber surround and flip flopping damper (spider) and analog everything" setup gets you nearly full range audio at quite low distortion levels.

There's just not much of a quantum leap to be made, at least in two-channel audio.

Even an ultra-affordable $100 speaker can reproduce most of the human hearing range with under 1% distortion. By $500 you're getting into active studio monitors with even lower distortion and controlled dispersion, and by $10,000 you're getting into Revels and Genelecs whose distortion is truly under the limits of human perception.

Off-topic half-baked theory: IMO a true quantum leap would require a whole ecosystem of change. Something like microphone arrays to capture the true dispersion patterns of instruments, and an upgraded playback chain (codecs, speakers) to play it back. Like ATMOS, but the inverse, in a way. At that point, a sound system might be capable of fooling you into thinking the musician is actually in your living room. (Something even a state of the art system 2-channel system today can't do IMO)

enshittification in audio just gets worse and worse.

Enshittification is a real and widespread thing, but I think you're badly misapplying it here.

Audio is absolutely not being enshittified.

Low-end audio (laptops, tablets, stock car audio, affordable headphones, portable speakers) is so far ahead of where it was 20 years ago that it's not even funny.

Hi-fi and mid-fi have stagnated but that's not nearly the same as enshittification.
 
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