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Radiant Acoustics Clarity 6.2 - Purifi based compact speaker

Tassin

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Radiant Acoustics have launched the Clarity 6.2, a compact speaker with performance similar to larger speakers. It uses a Purifi Ushindi woofer and passive radiators, combined with a custom-made AMT tweeter.

Interesting is that this development was the initiative of Peter Lyngdorf and Lars Risbo from Purifi. Stated frequency range is 35-20.000 Hz (-3dB), and sensitivity is "82 dB @ 2,00 VRMS ~ 1 W @ 4 ohm | 85 dB @ 2,83 VRMS ~ 1 W @ 8 ohm".

At an expected price of 4 k€ this speaker certainly has my attention. And I think it's going to offer some stiff competition to the March Audio Sointuva WG. What do you think?


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More technical insight : Clarity 6.2 Deep Dive

 
In the Deep Dive PDF, they list the "break-in time" as 24 hours. I wonder whether there is some logical reason for that, or whether they have decided, for business purposes, that it is necessary to pander to prevailing subjectivist notions.

Jim
 
A full spin/klippel suite would be good.
They have published the Purifi driver’s measurements.
Keith
 
In the Deep Dive PDF, they list the "break-in time" as 24 hours. I wonder whether there is some logical reason for that, or whether they have decided, for business purposes, that it is necessary to pander to prevailing subjectivist notions.

Jim
Woofer surrounds tend to break in and soften in the first few hours of use, decreasing the Fs slightly.
 
Woofer surrounds tend to break in and soften in the first few hours of use, decreasing the Fs slightly.

Yes, I am aware of that effect. I have always been a member of the camp expressed in this statement by Toole:


IOW, that changes, while technically extant, are inaudible. I was simply wondering whether the technology surrounding the Purifi drivers was a game-changer. That would, after all, justify their specification. IMO, following trendy mindsets does not.

Jim
 
In the Deep Dive PDF, they list the "break-in time" as 24 hours. I wonder whether there is some logical reason for that, or whether they have decided, for business purposes, that it is necessary to pander to prevailing subjectivist notions.

Jim

Yes, I am aware of that effect.

IOW, that changes, while technically extant, are inaudible.

Nowhere do they say that the break in period is audible. It may well be that the drivers take 24 hours before they measure to spec due to mechanical break in.

It would make sense to include it in the specs, in case someone measures the speakers straight out of the box.

I was simply wondering whether the technology surrounding the Purifi drivers was a game-changer. That would, after all, justify their specification. IMO, following trendy mindsets does not.
Im not sure it’s fair to describe their efforts to reduce harmonic distortion and intermodulation distortion as “following trendy mindsets”.

Purifi claim IMD is an order of magnitude below most competing drivers. Whether anyone calls that “a game changer” or not, is simply a subjective interpretation of objective measurements. For some it might be. For others not.

It seems that some manufacturers using Purifi drivers take the opportunity to take advantage of the super low distortion figures by really boosting the frequency response with DSP. Buchardt comes to mind. So the drivers have opened up the possibility of re-balancing the ‘compromises’ of speaker design it seems to me. Some might call that game changing. Others incremental improvements.
 
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Looks like a very nice speaker. But there are lots of talk about "low price" and "affordable", and when I looked them up, the Clarity 6.2 is "Sale price 3.998 € / pair". That is similar price to the March Audio Sointuva AWG, and higher price than the AsciLab A6B (2900 usd/pair), both of them also using Purifi woofers and PRs.

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there is also a rather entertaining than deep youtube video from stjernholm reviews, with some listening impressions and comparison to the buchardt a10 (which is also using a purifi woofer). from an asthetic point of view, i really like the design of these speakers, although im not a huge fan of how the purifi woofers look. and it seems they did a good job with the marketing, as the presentation of the speakers on their website looks really great. direct distribution with a similar approach than buchardt.

really interested to see some more measurements and listening impressions of other people.
 
Im not sure it’s fair to describe their efforts to reduce harmonic distortion and intermodulation distortion as “following trendy mindsets”.

When I say "following trendy mindsets". I'm referencing the prevailing notion among subjectivists that extended listening will not only change the sound of a transducer, but that the change will be audible ... as in "night and day" or "profoundly improved".

I am definitely NOT talking about efforts by this company - or any other company - to improve harmonic and intermodulation distortion. :)

Jim

p.s. - the reason I questioned the spec is due to this thread.
 
It's interesting that they created another new company. These could have been sold via an existing company with a distribution network. Are these to be sold via other channels or only HiFi Klubben?

They look cool and I like the walnut. Given the people behind them, I suspect they'll be good.
 
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In the Deep Dive PDF, they list the "break-in time" as 24 hours. I wonder whether there is some logical reason for that, or whether they have decided, for business purposes, that it is necessary to pander to prevailing subjectivist notions.

Jim
Physical warm up from shipping in cold weather, and psychology are good reasons to tell people to not expect perfection out of the box. Does that have to be based on a lie, maybe.
 
Woofer surrounds tend to break in and soften in the first few hours of use, decreasing the Fs slightly.
Fs does slightly change, but not typically enough to be audible. Changes in Qms counteract the Fs change. These changes happen in the first few moments of operation, not days or weeks or months... I measured this many times here, and this suspension change is a smaller compared to the changes that occur when the temperature changes a few degrees. Here is a JBL 2216Nd woofer, broken in from new for 6 months, with comparison to being put into the refrigerator for 10 mins:
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My heater coming on in the room while measuring even has an effect. Operating the driver at moderate power for just a few mins has a larger effect than break in:

The only driver I ever measured with substantial break-in are small drivers like HiVi B3N micro-drivers. They are small with stiff suspension, and since the F(s) a factor of cone mass and compliance, it is no surprise that changes in spider stiffness have a larger effect.

Manufactures make this bogus break-in claim over and over, gives them a free pass on bad sound and heightens the magical experience for customers who overspend on poor sounding speakers. A quick simulation or measurement with pre- and post-break-in data shows the changes in sound that people claim are audible are actually fantasies. The only thing broken into is your wallet. Even manufactures of great sounding speakers (like KEF) spout this nonsense in order to rope the last few fools to their brand with this break-in fever.
 
We offer free worldwide delivery, ensuring a hassle-free experience from start to finish. Depending on your location, your order will be shipped via DHL Commerce, FedEx Express, DPD, or PostNord. You can view the estimated delivery time during checkout.

  • Europe: 2-5 weekdays
  • International: 4-10 weekdays
No hidden fees—all costs are included in the price.
For orders outside the EU, we provide Delivered Duty Paid (DDP) service, meaning shipping, duties, and taxes/VAT are fully covered, ensuring a smooth, worry-free process.

We offer a 30-day return policy starting from the date you receive your product, giving you plenty of time to try it in the comfort of your home. If you're not completely satisfied, you can return it for a full refund. A €49 return fee will be deducted to partially cover shipping costs

That's crazy good deal in my country.
 
Hey guys!
Henrik Reinholdtsen from Nordic Hi-Fi here (the brand behind these speakers).

The discussion about break-in has made me re-check with the guys from Purifi and they confirm that it shouldn't really be necessarry, as their drivers do not really change over time audibly - you might be able to slightly measure it but it's so little that for most people it won't matter.

The 24 hours originally came from some measurements done by Purifi, shared with me, but as it's not audible (I forgot to ask), we've decided to delete it from the white paper etc. Should be fixed tomorrow during normal office hours.

Thanks for noticing this and let me know if there's anything else I can help with :)
 
Hey guys!
Henrik Reinholdtsen from Nordic Hi-Fi here (the brand behind these speakers).

The discussion about break-in has made me re-check with the guys from Purifi and they confirm that it shouldn't really be necessarry, as their drivers do not really change over time audibly - you might be able to slightly measure it but it's so little that for most people it won't matter.

The 24 hours originally came from some measurements done by Purifi, shared with me, but as it's not audible (I forgot to ask), we've decided to delete it from the white paper etc. Should be fixed tomorrow during normal office hours.

Thanks for noticing this and let me know if there's anything else I can help with :)

It's ASR, audio OCD supreme, everything is noticed, relevant or not! ;)
 
Hey guys!
Henrik Reinholdtsen from Nordic Hi-Fi here (the brand behind these speakers).

The discussion about break-in has made me re-check with the guys from Purifi and they confirm that it shouldn't really be necessarry, as their drivers do not really change over time audibly - you might be able to slightly measure it but it's so little that for most people it won't matter.

The 24 hours originally came from some measurements done by Purifi, shared with me, but as it's not audible (I forgot to ask), we've decided to delete it from the white paper etc. Should be fixed tomorrow during normal office hours.

Thanks for noticing this and let me know if there's anything else I can help with :)

Thank you for your post, Hr. Reinholdtsen, and welkommen til ASR!

Jim
 
Yes welcome to ASR, are you planning to publish a full suite of measurements?
Keith
 
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