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Old 14th January 2012, 03:38 PM   #971
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Why still put a steam engine into your amp? There is a better technology around, SMPS.

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Old 14th January 2012, 03:40 PM   #972
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Quote:
Originally Posted by vacuphile View Post
Why still put a steam engine into your amp?
Err - let me see - because its a tad quieter than a jet turbine?
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Old 14th January 2012, 03:51 PM   #973
a.wayne is offline a.wayne  United States
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Quote:
Originally Posted by abraxalito View Post
That would be a way to make matters far, far worse than even a generic trafo
Then you need to tell those guys with the trafo GB.....!!!

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Why still put a steam engine into your amp? There is a better technology around, SMPS.

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SMPS ... S.team M.y P.ower S.upply ..? ...........................
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Old 14th January 2012, 04:00 PM   #974
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Then you need to tell those guys with the trafo GB.....!!!
Oh the F5X guys? A quick look shows their spec has only the two secondaries bifilar wound. No problem with that - I was thinking you were talking about primary and secondary being wound that way. But I see they are specifying electrostatic screens - which are just dandy so long as your earth is clean I know mine isn't.....
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Old 14th January 2012, 04:14 PM   #975
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Quote:
Originally Posted by Pano View Post
Large amps have too many parts. The sounds get lost and confused along the way.
But it has spacious luxury apartments, so it can be relaxed!
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Old 14th January 2012, 04:19 PM   #976
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Hi,

Quote:
Originally Posted by a.wayne View Post
Then you need to tell those guys with the trafo GB.....!!!
Why? They probably are looking for the most efficient way to couple noise into their circuits, so they can hear maximum differences between interconnects and mains cables (note, minimising noise coupling does not eliminate differences, but it makes them a lot harder to hear... ).

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SMPS
Switched mode power supply.

The way most (or as RAW would say Mosbunall) are implemented they are to audio circuits and audio devices what Fed-Ex is to packages... A trial not only of design and implementation, but also of faith.

Ciao T
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Old 14th January 2012, 04:23 PM   #977
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Hi,

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Originally Posted by a.wayne View Post
So 2 in parallel is better than one big un ..?
No, not as such. But two sufficiently identical transformers may be configured mechanically and electrically to cancel both some of the stray fiields and most of the stray capacitance (the more precise the match the better the cancellation, so generic transformers from really big industrial winders in the US and EU are better then eastern european and far eastern ones.

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what is plitron doing differently
They have a website at Plitron, why not peruse it?

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Originally Posted by a.wayne View Post
bifilar wound ..?
Thanks heaven, no...

That is a very good way to make a transformer with exceptional coupling up into the MHz range, which may make some sense (at least for bragging rights - my balanced output transformer goes to 15MHz - Hey mine goes to 22!) in audio, but zip in mains transformers.

Ciao T
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Old 14th January 2012, 04:27 PM   #978
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Quote:
Originally Posted by vacuphile View Post
Why still put a steam engine into your amp? There is a better technology around, SMPS.
Because SMPS is the same steam engine rotating with thousand times higher RPM. In addition to low frequency ripples we need to filter as well high frequency ripples created by SMPS itself. I.e. in attempt to reduce weight ans size we create more problems that affect sound quality, unlike weight and size.


Like, in modern power plants nuclear reaction produces still the same steam from the same water. As the result, such power plants create more problems than simple steam engines.
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Old 14th January 2012, 04:40 PM   #979
tvrgeek is offline tvrgeek  United States
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By smaller I meant 25 or 50W vs 200W, of similar reasonable design.
I notice Self and Cordel don't exactly agree, so it was a very good tip to get both.
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Old 14th January 2012, 04:53 PM   #980
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We usually 'upgrade' commercial designs by REPLACING the switching power supply with a linear power supply. Wavebourn is correct, once again.

Last edited by john curl; 14th January 2012 at 05:05 PM.
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