[Patrick Turner]

Nick Gorham wrote:

Patrick Turner wrote:


So I avoid all the bothers of balanced inputs.

Balanced makes sense only when you have long signal runs from
microphones, or for telephones.

For short runs in a domestic loungeroom, and at line levels, there is NO
need for balanced
and its complexity, ever.

Perhaps one might use it between a TT cart and a phono amp. But only if
ya hafta.

And ya shouldn't ever hafta, in your loungeroom.


Patrick Turner.


Other than the person who asked me to design this amp for him required
it to have balanced inputs.


The customer is king, and ya hafta do what he says.

I just had a customer ask me to replace the caps in the speakers I made
for him.
He wanted all Obligato polypylene, instead of generic NP electros
bypasseed with plastics,
so it meant entirely re-building the crossovers
and I barely had enough room inside the box to fit such huge capacitors.

It took me all last weekend. Was it worth it?

Well, he thinks so, but I ain't convinced, his system sounded really
excellent before
the cap changes. But the new caps sure didn't make the sound worse.

Now he talks of removing the Xover boards into external boxes on the
floor to avoid
the effects of microphony. The Obligatos have outside covers made from
copper and brass water pipe, and the internal cap is sealed with epoxy
resin, so how microphonic they are
is a moot point.

His amp system has SE tubes throughout, so i'd say balanced
connections would be totally useless, and would add unecessary
complexity.

His unbalanced system with no transformers at any input and
a low output moving coil cart makes not the slightest perceptible hum.

Patrick Turner.







--
Nick