Michael Børresen explains himself?

[voodooless]

The only special is 7th port to load tweeter, if I get it right - probably phase control - which would be minus several tens of dB for tweeter.
If I am right...then this is pretty rare solution.

The tube is smaller and longer than the other ones, meaning the tuning is significantly lower. So there is most certainly no loading effect. It might be a poor attempt at operating the tweeter in an open-baffle like setup, which isn’t very obvious from the measurements. It might explain some of the lower efficiency they claim (but due to less magnetic material). Possibly it’s needed for the lowest possible x-over point.

 

[singular]

The tube is smaller and longer than the other ones, meaning the tuning is significantly lower than the other ones. So there is most certainly no loading effect. It might be a poor attempt at operating the tweeter in an open-baffle like setup, which isn’t very obvious from the measurements. It might explain some of the lower efficiency they claim (but due to less magnetic material). Possibly it’s needed for the lowest possible x-over point.

Smaller volume, longer tube...
I do not think tweeter could be opened by long helmholtz to open baffle...
By me, the only where it is seen is phase longer connected with mids - which is good because it is audible.

Yes, the efficiency is low to what area cones have.
Motor is easy to make saturated, so obviously not the case.
Philosophy of speakers outside of walls I would say.
Huge voice coils and lot of power into them...3ways made to gain bass back.
It is always like miracle to hear slim columns and 6"s doing their best in large space - I think this is part of approach.

They do some nice motors with unique air gap etc.
But when you listen to 3ways based on well done PA 10", for half price or made DIY, you imagine it is only the slim shape what is left as advantage.

 

[voodooless]

I do not think tweeter could be opened by long helmholtz to open baffle...

It’s not, it will just act as a waveguide existing some of the tweeter sound to the back.

By me, the only where it is seen is phase longer connected with mids - which is good because it is audible.

How would that even work? The path differences are way too long.

 

[FrantzM]

DO NOT FEED THE TROLL

 

[Wesseling Audio Lab]

Different flows in the direction of success and sales - Boressen adopts a Bose concept

Accurate speakers - Different story

 

[Mnyb]

This audiogroup seems to collate everything wrong in high end under the same roof , makes life easier.

Seriously why is it so easy the sell the guru/sage concept in high end the esoteric knowledge only the chosen one can have and he has chosen to make this available in a series of very expensive products ( there is no other way ) . That magically gets improved now and then to be even more expensive and sounds even better even if the previous product reached down into the pores of the artis performing on your 3 stockfish recordings we listen to somehow there is always more resolution and more veiles to lift in a never ending cycle

 

[Ropeburn]

How dense is the channel dude?

 

[Wesseling Audio Lab]

Some wealthy males fall for the BS - Likely it will never change

I have a friend who worked for Grand Touring where exotic cars are sold to wealthy clients.
Friend is a audio enthusiast and on occasion has asked car purchasers if they are interested in high fidelity audio and do they have any equipment. One response was "not Yet" but when I do, "I will look for the most expensive equipment that is available"

 

[Mart68]

Some wealthy males fall for the BS - Likely it will never change

I have a friend who worked for Grand Touring where exotic cars are sold to wealthy clients.
Friend is a audio enthusiast and on occasion has asked car purchasers if they are interested in high fidelity audio and do they have any equipment. One response was "not Yet" but when I do, "I will look for the most expensive equipment that is available"

The idea is that all you have to do is keep writing cheques and your system will keep on improving. No need to learn anything.

As an EE pal noted, on many audio forums, threads about nonsense products will run to 20 pages of egging each other on to buy them, but threads about things that actually matter will get at most a few posts, because they're too technical for these punters to grasp.

Also the very wealthy punter is also more often into the far reaches of delusional golden ears - hearing the directionality of fuses, or the sonic character of different RCA plugs.

It's a hobby, but it's not the hobby I'm in.

 

[singular]

It’s not, it will just act as a waveguide existing some of the tweeter sound to the back.


How would that even work? The path differences are way too long.

you are right.

 

[singular]

DO NOT FEED THE TROLL

I am troll.
Going out.
Bye guys.

 

[DSJR]

I found a photo that clearly shows all the ports on the Børresen.
With this many openings, I feel like even if a golf ball accidentally made a “hole-in-one” into one of them, nothing would change — and no one would ever notice.
View attachment 494099

Aren't 'tower' boxes like this basically tuned organ pipes? Maybe having all these openings up the back in a line, is supposed to aid smoothness in low response or summat? Mind you, the 80Hz peak may well be the basic box-tube resonance?

If they get owners hooked on this terrible performance, NO neutral speaker will sound right. Our UK-flat-earth 1980s vibe was like this, speakers sounding like tamed (?) NS10s, severely coloured sounding (at the time) vinyl based sources and increasingly hard-toned (almost ringing) amps good on 'pr@t,' we thought that more neutral systems sounded bland and boring, until some of us attended live orchestral performances and discovered the boring bland systems our then elders owned weren't so bad after all. I thank the Lord that I had good long-standing friends to pull me back from the brink at the time, but in my Linn Isobarik days, it was hard I have to say...

 

[Tell]

Wow those are seriously bad speakers! I'm impressed actually that someone manages to build something that bad.

 

[Arindal]

Mind you, the 80Hz peak may well be the basic box-tube resonance?

Rather unlikely, as 80Hz translates to a wavelength of 4.25m, so a standing wave inside an enclosure is to be expected in an inner chamber which is 2.12m tall.

Aren't 'tower' boxes like this basically tuned organ pipes?

No, the majority of floorstanders uses a vented principle, with the equivalent of spring (enclosed air) and mass (air in the ports), commonly known as Helmholtz resonator or bass reflex. Seems to be applicable to this one as well, the number for ports is secondary, if tuned similarly.

Loudspeaker concepts resembling of an organ pipe, are for example transmissionline and TQWT. Nothing of that sort at play here.

 

[Pearljam5000]

€94K
4.5 inch driver

 

[MAB]

I am troll.

Thanks for confirming. Sad.

Going out.
Bye guys.

Perhaps in the future, contribute.
I’ve owned, listened to, and tested bad sounding speakers. It’s interesting to see what makes them so bad. We all learn that way.

Mounting speculative and hypothetical defenses of poorly performing ultra-luxury goods isn’t OK, even if you have money to burn.

Better yet, focus on high performing gear, especially if it is good value.

 

[Ropeburn]

€94K
4.5 inch driver
View attachment 494162View attachment 494163

Looks like great value! Hah. Apparently, for that money you can fully restore a real M1.

 

[Pearljam5000]

Does it make sense?

 

[Ropeburn]

View attachment 494175View attachment 494176View attachment 494177View attachment 494178
Does it make sense?

Gold plated mains contacts... good that it doesn't use any power, because inrush currents can punch holes into gold plating if you're unlucky

 

[DanielT]

Loudspeaker concepts resembling of an organ pipe, are for example transmissionline and TQWT. Nothing of that sort at play here.

Speaking of TQWT. I got a couple of empty TQWT boxes this spring. Inside they look like this:

If I remember correctly, the pipe, so to speak, about two meters in total, ended at the exhaust. I couldn't get them down deeper than 50 Hz, no matter how I tried plugging the exhaust, the port. Sea's 8 inch bass driver has the capacity to go lower in frequency. It did produce a pretty nice bass sound though.

Measurements with the mobile phone microphone, so rather rudimentary. However, I know that that microphone can pick up sounds below 50 Hz.Measured up to around 120 Hz if I remember correctly: