Houdini

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Geoff.R.G
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Re: Houdini

Unread post by Geoff.R.G »

guydarryl wrote:
Mon Nov 02, 2020 11:54 pm
Geoff.R.G wrote:
Tue Oct 13, 2020 2:48 pm
Vinyl-ant wrote:
Tue Oct 13, 2020 12:04 pm
Ive found that silicone damping via a damping trough and paddle helps alot with controlling resonances in arm/cartridge systems. If a cart is isolated from the arm it shouldnt excite resonances in the arm itsself, but, its own structural resonances will affect its output as there is nowhere for them to go. Peronally i think this is what i heard with the cartridge man isolator. Normally, the cartridge resonances would be dumped into the arm and shunted away, the problem resonances that match and excite the arm are the ones to look at.
Silicone damping will damp higher frequency oscillations more than lower frequency i would have thought, and the viscosity of the silicone fluid will have a bearing on the frequency range it will damp
Ive tried this out with various arm designs ive penned and built over the years, and have come to the conclusion that there is no one size fits all solution. There are simply too many variables.
I keep looking at how to measure the resonant behaviour of arms as it interests me, getting hold of an accelerometer small enough not to influence its own measurements has been a stumbling block
I have only one thing to say to that "Laser interferometry".
Not convinced that measuring, in itself, would help very much.

I took a bunch of pupils to Celestion speakers at Foxhall road in Ipswich (must have been about 25 years ago) and it was fascinating to watch them using laser interferometry to study and develop loudspeaker cones - I think that they may have been the first company to use this technique in this way.
I didn't like their speakers very much though :think: it must be a matter of knowing what to do once you have the observations/measurements.
Quite right, measurement alone does nothing. The key is to try something, see if it works and then find out why it does or doesn't. Some times it will be obvious but often it won't and that is where measurement comes in. Our world is so fixated on profit that everything gets measured and tested to be sure it will work before it is ever tried but the pioneers did it the other way around. I suspect Celestion did their measurements and then concluded that a characteristic was undesirable based on a theory. Better to take something that sounds good and something that doesn't and then see what is different.

In the case of Houdini, I am sure it does something but I won't spend £300, or even £100, to find out what. However, it would be useful to know why it does what it does but, as with so much in the world of sound production/reproduction, we don't have agreement on what sounds good and what doesn't.

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Fretless
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Re: Houdini

Unread post by Fretless »

I've completely lost the drift of this thread. :confusion-shrug:

Has anybody actually tried one?
NVA: P50sa - SSP - A40 - LS6 - Cube2 - BMU
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Geoff.R.G
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Re: Houdini

Unread post by Geoff.R.G »

Fretless wrote:
Tue Nov 03, 2020 11:10 am
I've completely lost the drift of this thread. :confusion-shrug:

Has anybody actually tried one?
I believe CaterhamKev has tried one but has now left.

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Re: Houdini

Unread post by savvypaul »

Geoff.R.G wrote:
Tue Nov 03, 2020 1:44 pm
Fretless wrote:
Tue Nov 03, 2020 11:10 am
I've completely lost the drift of this thread. :confusion-shrug:

Has anybody actually tried one?
I believe CaterhamKev has tried one but has now left.
Kev posted extensively about the Houdini on this thread (and a few others). It is all there to be read.
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savvypaul
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Re: Houdini

Unread post by savvypaul »

Looks like George at the WAM is going to do a review: https://www.hifiwigwam.com/forum/topic/ ... nt-2649218
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Re: Houdini

Unread post by Fretless »

The world holds its breath .... :roll:
NVA: P50sa - SSP - A40 - LS6 - Cube2 - BMU
Digits: E-Medic ST-M PC + Volumio + AQ Jitterbug
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savvypaul
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Re: Houdini

Unread post by savvypaul »

:lol:
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Daniel Quinn
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Re: Houdini

Unread post by Daniel Quinn »

I really wish I read a review that made me want to try it , but all I have read is bullshit and hyperbole.

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Re: Houdini

Unread post by Ordinaryman »

I really don't understand. You seem to deride "Georges" opinion before its even made? maybe you would prefer "Rabaski" as you didn't show the same opinion with his review of NVA.
Personally I have no opinion on the product. If i had one and listened to it , that would be different.

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savvypaul
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Re: Houdini

Unread post by savvypaul »

I have never experienced war, but I have an opinion on it.
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