Dynaudio creates new “Jupiter Room” for measuring loudspeakers. (see video)

[AudioJester]

Looks like they are a measuring based speaker developer. So why does Dynaudio not publish their own speaker measurements?

 

[MattHooper]

Well, I certainly didn’t see “Klippel is better!” coming

 

[TimVG]

If, and that is the problem, the transducer's data are measured correctly ...

For radiation characteristcs, only the physical makeup of the drivers is needed. It gives you a very decent idea of what you can potentially expect..

 

[amirm]

Looks like they are a measuring based speaker developer. So why does Dynaudio not publish their own speaker measurements?

Towards the end they say something like 70% of their evaluation comes from listening. That may be the reason....

 

[bmc0]

What is not clear to me: is that boom-bass effect (still) a problem made by stereophile's measurements or do the speakers really sound like this?

It’s his room!

It's not a room effect. He does nearfield measurements for low frequencies, but does not compensate for the lack of baffle step. A speaker which is flat in free field conditions should be as much as +6dB in the bass when measured this way.

 

[Jaxjax]

I've heard a couple from each domestic 'range' and the balance does change it seems from one 'range' to another, the sound seeming to get more presense and top as you go from £/$200pr to £/$ 50k approx. Can't say the audiophile term 'resolution' gets any better though, just the cost and perceived 'detail' due to tonal balance tweaks. No doubt at all it's known and intentional, to justify the high prices they charge. I've not heard the active pro models, but I gather the latest BM5A III is a great tech improvement on the early ones the BBC bought into to replace their home-grown models.

They Rock !!!!

 

[Nopiano]

It's not a room effect. He does nearfield measurements low frequencies, but does not compensate for the lack of baffle step. A speaker which is flat in free field conditions should be as much as +6dB in the bass when measured this way.

True, enough, as he typically writes something like this: “A speaker that has a truly flat response in the usual "4pi" space will therefore appear to have a boosted upper-bass output with a nearfield measurement, the center frequency of that boost depending on the physical dimensions of the speaker and the woofer alignment.”

But JA often refers to his own room boosting bass in the reviews he writes, beyond the fact he does the measurements in 98% of reviews penned by others. For example, in his recent Sourcepoint 888 review, he ended up with the front baffles 83” from his front wall to balance the bass - way more than recommended. That’s why I said it’s his room, because of the way the original query was worded. I appreciate being able to give a fuller response with your help.