Re: More on transformers...

"Federico" <plokmichael@xxxxxxxxxx> wrote in message
news:IXWOe.97601$fm.6582506@xxxxxxxxxxxx

> What I understand from various threads is that audio
> transformers (we're talking about output ones) are mostly
> there to balance the signal...

Also isolate grounds, and filter out noise and RF.

> I also undestand that using Xformers is sonically worse
> than not using them...

That would be in the ear of the beholder.

I think the one thing that is sure is that really good
transformers cost a fair piece of change, but again not as
much as really exotic approaches.

> My questions are:

> 1) are there other ways for balancing an unbalanced
> signal?

Zillions of them. The more exotic means for balancing and
isolating convert the signal to say digital signals on RF or
optical links, which can isolate just about anything from
anything.

>2) so manufacturers use Xformers to colour the
> sound?

Absolutely. But other manufacturers brag about how little
their transformers color sound when used right. Both sides
can be right.

> 3) What coloured sound means? Distorsion?

It generally means frequency response variations, but it can
also mean nonlinear distortion. Transformers can easily
provide both or do a really pretty good job of avoiding
both.

> 4) do Xformers make the sound bigger but innatural?

That would be in the ear of the beholder.

> What about interstage transformers?

Mostly, artifacts of the long distant past. The main
advantage of interstage transfomers is signal handling
efficiency. When tubes and transistors had very low gain,
transformers were more widely used.



.

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