MUNCHEN 2025 MOC / MARRIOTT The final Chapter !

[D.Duttilleux]

The Vyger system sounded a bit strident to me, especially in the treble, probably not helped by being played too loud IMO.

Could the combination of an extremely stiff, ultra-low density tweeter dome material with significantly less rigid and much higher density PP cones perhaps also play a role here?

 

[morricab]

Could the combination of an extremely stiff, ultra-low density tweeter dome material with significantly less rigid and much higher density PP cones also play a role here?

I think it was mainly just played too loud.

 

[matthias]

What are your impressions about the new SOUNDKAOS VOX5 speakers at Hifideluxe:

VOX 5 — ALTERNATIVE AUDIO

www.soundkaos.com

(Short video on the page)

 

[orfeo_monteverdi]

Regarding beryllium (again).
Emphasis are mine.

Could the combination of an extremely stiff, ultra-low density tweeter dome material with significantly less rigid and much higher density PP [polypropylene] cones perhaps also play a role here? [regarding Vyger louspeakers]

It's about the speed of sound through materials in general and about inherent damping properties.
At a deeper level (subdomain #1) there are the reciprocal effects between, in this case, the dome itself and the suspension.

Beryllium is theoretically the ultimate material for the reproduction of mid and high frequencies, because of the speed of sound (approx. 12,890 m/s) and the associated properties including high stiffness and low mass.
And herein lies the issue. Simply put, Beryllium is actually too good for a natural reproduction of HF sound.
The difference between the material properties of a Beryllium dome and almost all cone materials is so great that it's almost impossible to achieve a sonically homogeneous whole.

This phenomenon was noticeable in almost all systems that I have listened to with a Be HF unit; an obvious disjunction between the highs and the low/mid band.

Would you say that a tweeter/midrange, coaxial: 3.5cm beryllium dome / 14cm magnesium found in the TAD CE1TX sufficiently diminishes the "difference between the material properties" (Be vs Mg here), so that TAD's CST (Coherent Source Transducer) driver is "sufficiently coherent" (the coaxial CST found on the biggest model, TAD-R1, is made of beryllium for both tweeter and midrange).

On the CE1TX, magnesium (for the midrange) may not be beryllium, but it is by no means polypropylene either (used in the Vyger's midrange); it's surely incomparably stiffer than polypropylene.

TAD CE1TX

I own a lovely pair of Harbeth M30.2 Anniversary in a second system. Very-good-but-not-outstanding textile done tweeter, and "Radial 2" midrange cone (Radial 2 is a polymer, not exactly polypropylene AFAIK). Coherent speakers indeed, but limited.
I found the TAD CE1TX with their Be/Mg CST tweeter/midrange coax driver both much less limited, and coherent. @D.Duttilleux
Do you disagree ? What do you think about this Be/Mg coax ? (feel free to be direct, I'm from Northern Europe ;-)

 

[andromedaaudio]

I still have to upload 3 vids i made of the FM acoustics .system
Stay tuned .( once im back from d afrique)