Mark Porzilli ‘The Note’ Line Array

[Purité Audio]

I am intrigued by these Mark Porzilli’s Line Arrays, I believe he designed the ‘Pipedreams loudspeakers?
Are they good are they bad what are their advantages disadvantages?
Benchmark used them for Axpona so…
Thanks,
Keith

 

[ErVikingo]

Its a great concept but I have not heard them. They are priced out of my range.

 

[LearningToSmile]

From the stereophile article, something that caught my eye:

Not that there's anything wrong with SVS but there's something funny to me about selling a pair of fancy $32k bespoke speakers with an included good value bang-for-the-buck subwoofer from a completely unrelated brand. I'm sure it works great but I'd imagine it raises an eyebrow or two among the target audience.

 

[Purité Audio]

Benchmark are a no nonsense design/measurement led, they used A DEQX device for crossover/room correction , to use a fit for purpose seems to make sense in the context of the room.
Keith

 

[MKR]

I heard these at AXPONA … meh, not impressed, but nice soundstage, as you would expect. And wasn‘t aware of the cost. Sorry, but $32k for these? That is ridiculous

 

[tomtoo]

What is this ? A lot of cheap 2inch chinese fullrange?

 

[Grotti]

What is this ? A lot of cheap 2inch chinese fullrange?

Could be these:

BF 32 - 8 Ohm | Visaton

3,2 cm (1,3") Breitbandlautsprecher mit breitem, ausgewogenem Frequenzgang und sehr guter Tieftonwiedergabe. Mit kräftigem Neodym-Antrieb. Geeignet für Anwendungen, die zugleich geringe Abmessungen und gute Musik- und Sprachwiedergabe fordern. Quadratischer Korb mit vier Befestigungslöchern...

www.visaton.de

 

[Grotti]

I heard these at AXPONA … meh, not impressed, but nice soundstage, as you would expect. And wasn‘t aware of the cost. Sorry, but $32k for these? That is ridiculous

Yes indeed: the price seems to be ridiculous. Is there anything more to it than screwing 50 drivers on top of each other?

 

[Purité Audio]

I heard these at AXPONA … meh, not impressed, but nice soundstage, as you would expect. And wasn‘t aware of the cost. Sorry, but $32k for these? That is ridiculous

What did they sound like?
I am still wondering about a, their advantages in a domestic setting and b, what are the differences between the straight ‘Note’ design and the Don Keele/ @Bjorn curved CBTs?
Keith

 

[tomtoo]

Design schnick schnack

 

[sarumbear]

From the stereophile article, something that caught my eye:
View attachment 280683

Not that there's anything wrong with SVS but there's something funny to me about selling a pair of fancy $32k bespoke speakers with an included good value bang-for-the-buck subwoofer from a completely unrelated brand. I'm sure it works great but I'd imagine it raises an eyebrow or two among the target audience.

It looks like a CBT array Don Keele used to talk about.

Constant Beamwidth Transducer (CBT) Speakers

Not sure how many members have CBT speakers, but I know a few have shown interest. Since there have been scattered ongoing discussions, am creating this thread to give it a home. If you are wondering what CBTs are, they are the work of former JBL and Audio Artistry engineer Don Keele. Edit...

www.audiosciencereview.com

 

[notsodeadlizard]

Well ... if you are interested in this... It was a long time ago but there is such a wonderful master, for example:

The making of: The Two Towers (a 25 driver Full Range line array)

After riding along on a few different line array threads I figured this project deserved it's own thread. I wanted to get new speakers for my living room for a while but could not quite find something I liked. The speakers I have right now are just too big to use in a proper setup. In a domestic...

www.diyaudio.com

The multi-year project is beautifully documented, there are tons of information and measurements.
Enjoy it.
If there is some sense in the "high end" words, this project is the sense.

 

[jhaider]

What is this ? A lot of cheap 2inch chinese fullrange?

Based on the specs Aura Whisper is a possibility.

CLEARANCE Aurasound NSW2-326-8AT Whisper 2" Extended Range Speaker Driver 8 Ohm

Aurasound NSW2-326-8AT Whisper 2" Extended Range Speaker Driver 8 OhmThe Aurasound "Whisper" NSW2-326-8A 2" extended range driver is packed with next-gen speaker technology. An NRT™ neodymium radial magnet motor submerses the 32.6 mm, underhung voice coil in magnetic flux for supreme control...

www.parts-express.com

These drivers are actually more advanced than most “hifi” drivers: underhung voicecoil with long throw, novel suspension for the inverted dome, neo-radial motor. They’re not great on the tippy top, and obviously too large to avoid beaming. A killer app for them is car audio, where the top octave is swamped by noise anyway.

 

[Purité Audio]

Thanks for posting that Linkwitz link Sarum very informative.
Keith

 

[tomtoo]

How did they handled the typical line array problems?

From my point of view for some nice to look at. But not more.

 

[sarumbear]

How did they handled the typical line array problems?

Using science

From my point of view for some nice to look at. But not more.

If you read the link I posted of Don Keele’s presentation you will learn.

 

[tomtoo]

Using science


If you read the link I posted of Don Keele’s presentation you will learn.

Aj'h, ok lets see thx. Always ready to learn.

 

[MKR]

What did they sound like?
I am still wondering about a, their advantages in a domestic setting and b, what are the differences between the straight ‘Note’ design and the Don Keele/ @Bjorn curved CBTs?
Keith

Nice soundstage (that typical line array wall of sound) and image, midrange was nice, but lacking detail and dynamics. I actually think the room was just too small, needed some room to breath.

 

[Purité Audio]

MKR you liked the Credo line arrays didn’t you?
Just wondering how different or rather what was different from the ‘Notes’ ( apart from 6x price)
Keith

 

[Bjorn]

What did they sound like?
I am still wondering about a, their advantages in a domestic setting and b, what are the differences between the straight ‘Note’ design and the Don Keele/ @Bjorn curved CBTs?
Keith

If it's traditional line array the drivers will not sum, which leads destructive inteference. With the CBT technology the drivers do sum up to a certain point in frequency depending on the driver size.

We can see this in some comparison simulations.

It's also worth mentioning that a very narrow cabinet will have a very high baffle step. This leads to more energy going around the cabinet and sensitivity on-axis is thus lowered.