On 2015-04-18 3:07 PM, Paul Stamler wrote:
>
> Well-designed tube circuits can have transient response as good as
> transistor circuits, and incredibly low distortion as well (with the
> application of negative feedback). I'm sorry, but the idea that
> "euphonic distortion" is an inherent characteristic of tube circuits is
> one that's been carefully nurtured by the purveyors of tube hi-fi gear.
> I'll go on record as saying categorically that it ain't necessarily so.

They key to this is circuit design/topology and paying attention to gain
staging through the device as well as component selection.

Tubes can handle rather large voltage swings and if the R/C rolloffs are
properly controlled they may actually provide a cleaner representation
of the transient--if the A-D converter can accept it without excessive
noise. Again, gain-staging is of paramount concern.

Cheers,

Richard

--
Richard L. Hess email: [log in to unmask]
Aurora, Ontario, Canada 647 479 2800
http://www.richardhess.com/tape/contact.htm
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