Zitat von mvn im Beitrag #1

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Wenn ich die Beiträge der Probleme mit HW-updates und neuen Windows-Versionen im Forum vergleiche

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Zitat von NAKOrgler im Beitrag #2

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Wenn jemand meint, er müsste jedes Betriebssystem-Update installieren, dann muss man Probleme und Anpassungsarbeiten einkalkulieren.

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Hallo zusammen,

ich bin mir sehr unsicher, ob es zielführend ist, hier wieder einen neuen Thread aufzumachen, um zum x-ten Mal zu erörtern, welches DO-Konzept das Beste sei und warum. Die jeweiligen Loblieder auf die jeweiligen Lieblingsinstrumente sind doch mittlerweile ausreichend gesungen worden. Physis ist toll, Hauptwerk natürlich auch, und Live/Nobilis sowieso :-)

VG
Stephan

Zitat von mvn im Beitrag #1

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Ich beschäftige mich seit längerem mit einer möglichst optimalen, externen Abstrahlung - ist aber bezogen auf individuelle Raumverhältnisse wirklich komplex - eine tolle Lösung habe ich (noch) nicht gefunden.

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Zitat von trompetendulzian im Beitrag #3

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Dem würde ich aus eigener Erfahrung widersprechen.

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Zitat von NAKOrgler im Beitrag #6

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Das darfst du Das Risiko bleibt.

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Zitat von ahlborn im Beitrag #5

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Zitat von mvn im Beitrag #1

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Ich beschäftige mich seit längerem mit einer möglichst optimalen, externen Abstrahlung - ist aber bezogen auf individuelle Raumverhältnisse wirklich komplex - eine tolle Lösung habe ich (noch) nicht gefunden.

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I can try to answer, but referring to the Physis organs that I know quite well.
I have no hardware knowledge of Live to apply the following examples to this instrument.

The main question is: what is missing from the built-in diffusion that needs additional external amplification? Is it possible to improve the internal amplification to avoid adding additional audio channels?

First of all, I must make a premise: the sound diffusion of the Sonus series is not trivial and also uses solutions that in my opinion are interesting.

For example, some channels have a digital active crossover, which is a smart solution in my opinion, and has many advantages in terms of reducing distortion due to passive components (i.e. capacitors and inductances).
There are some things that can be further refined to achieve even better internal reproduction, and thus achieve greater transparency and precision in reproduction.

The Sonus series has a variable number of channels from 7 (for the smaller models) to 9.

The bass channel (loaded in bass reflex and tuned to about 34 hz in the Sonus 40-60) has active low pass xover, and the surround and presence channels have an active high pass.

The channels under the pants have an electronic high pass, and, for the horn tweeters, an additional high pass provided by capacitors.

These 8 capacitors are mounted on the base board of the modular amplifier (C12/19)

In 7-channel models, these capacitors are electrolytic, while in 9-channel models they are polyester.



So the Sonus 40/45/50/235/346 have electrolytic capacitors (2.2uf, 63V, 20%), which are qualitatively lower than those made of polyester.
The replacement of these capacitors (I put them in polypropylene with 10% tolerance, they cost a few euros), produces less distortion and the effect is immediately audible. Greater cleaning of the high frequencies.
Of course, to replace them you need to have manual skills in knowing how to weld.



There are other refinements that can be achieved, without weld.

In the amplifier, the large filter capacitors (they are in pairs, blue, in the vertical boards), can be mechanically damped to prevent vibrations (external or self-induced) from producing distortion.
Many companies that build audiophile amplifiers are very familiar with this problem and solve it by mechanically damping the large capacitors, applying latches.
I applied a rubber strip between the pairs of capacitors of each board and then tied them with zip ties.



The cables that power the amplifier (those coming out of the toroidal transformer) can be twisted to further increase immunity to disturbances.


Finally, in the side compartments that house the side and front speakers, there may be sound-absorbing material depending on the model.

In the Sonus 40/45/50 there is sound absorbing material.
There is none in the Sonus 60. There are partly technical and partly commercial reasons behind this choice.

Well, buy a 50x50x3cm ashlar sound-absorbing panel. (It is important that it is exactly this thickness)



Cut out two strips 20cm wide, keeping the length of 50cm.

For 40/45/50 models remove the original white sound absorber and insert the strip, folded in an L, so that the embossed part is in front of the side speaker.

For the Sonus 60, the original sound absorber is not present, so place the new strips directly as explained above.


This simple change produces a very audible change.

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In fact, I like them too.. as an audiophile and I always try to get the maximum performance from each device.

The analog circuitry of the Sonus is already of a good standard, and with little work you can get a good improvement in audio performance!

Zitat von ahlborn im Beitrag #9

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In fact, I like them too.. as an audiophile and I always try to get the maximum performance from each device.

The analog circuitry of the Sonus is already of a good standard, and with little work you can get a good improvement in audio performance!

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Actually... there is. A "SPDIF out" track arrives at the DAC board which, however, at least in the Sonus 40/60 dac board is not connected. I have no idea if carry a stream of stereo, or compressed multichannel audio. I don't even know if it's software enabled.
But the fact that it exists makes me think it could be used in some way: perhaps for custom models like Regent.

Have you tried asking Viscount if there is a dac board with digital outputs? Maybe they have it available..


For the Magneplanar.. I don't own them, but I seem to remember that some models had good crossover components! :D
My loudspeakers (which I love, Opera Quinta 2011) have a crossover that I haven't modified! :-)

Ich habe den von Ahlborn gebrachten Vorschlag aufgegriffen und Akustikschaum zwischen die Lautsprecher an der Seite und die anderen Lautsprecher meiner Concerto 350 eingebracht.
Nachdem ich aus den Fotos nicht so recht schlau geworden bin, musste ich nach dem Text gehen, den ich so verstanden habe, wie es auf meinen Fotos unten zu sehen ist.
Ich kann das Ergebnis aber bestätigen: Der Klang verbessert sich deutlich.
Viele Grüße

Stephan
IMG20211127110947.jpg - Bild entfernt (keine Rechte)IMG20211127110953.jpg - Bild entfernt (keine Rechte)

I am happy that you have positively experienced this small modification!
In my case and for my environment I used less sound adsorber, but in any case if the result satisfies you it means that it's okay!

also try to put some bluetack around the big capacitors of the amplifiers, and to twist the cables coming out of the toroidal transformers...

I recommend instead not to add any sound absorbers inside the woofer cabinet. Adding absorbing material lowers efficiency. Whenever I tried to insert material, or to tune the resonant frequency to a lower frequency (by lengthening the reflex tube), I always came back preferring the original situation..

Zitat von ahlborn im Beitrag #14

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also try to put some bluetack around the big capacitors of the amplifiers, and to twist the cables coming out of the toroidal transformers...

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