" wrote in message
link.net...

"Robert Morein" wrote in message
...

From http://www.electronicstalk.com/news/mat/mat150.html

"A further noise variable that can specifically affect small AC voltages
can
be observed with reed contacts and with relays constructed according to
the
reed principle - designs with their contact springs in the magnetic field
of
the relay coil."
When the contact is closed there is a damped oscillation with a frequency
of
between 2 and 3kHz, corresponding to the inherent resonant frequency of
the
tongues.

"However a typical level for standard contacts can be extremely
significant
on very low-level signal switching circuits."

Once again, Arny and his amphibian sidekick are caught in the quagmire of
unscientific thought and sloppy design.



So you still can't prove that there is any AUDIBLE problem with the relay.
Is there anything you CAN prove?
I mean aside from the fact that you are an idiot.


IN FULL:

----------------------------------------------------------------------------
-----------------------------------------------------
The choice of an electromechanical relay to be included in a low-level
signal circuit can be a crucial factor in determining the levels of
electrical noise within an application.

In basic terms, the electromechanical relay is a comparatively simple
component and when included in an application, it is somewhat governed by
its inherent operating characteristics.

When small DC or AC voltages are switched with electromechanical relays,
noise can be generated, causing possible corruption of the signals to be
switched due to heating and material effects.

Specific constructional techniques during the circuit design, along with
a
careful selection of materials by manufacturers, can be employed in order
for such noise generation to be significantly lowered, if not completely
eliminated.

Electrical noise levels occur because of the unavoidability of transition
points between materials along the paths travelled by the signal.

The transition points are always a compromise between the practicalities
of
the relay design, compared against an ideal electrical characteristic.

This is due to manufacturing requirements that dictate that the metal
connections are routed into the interior of the relay via sealed or
moulded
glass entry points moulded into the metal casing.

To prevent mechanical stress between the glass insulation and the PIN
passing through it when the temperature changes, the coefficients of
thermal
expansion of the two materials must be matched.

Unfortunately, this results in the use of contact materials that produce
noise voltages if heated.

The effective temperature differences largely depend on temperature
distribution within the relay and thereby on the relay construction and
the
geometry of the connections.

Moreover, the manufacturers' datasheets only very rarely give information
on
the thermo electromotive force of relays.




Desperation time for the audiophools, now they're forging posts in order to
deceive.

The simple facts are these:

Wire is wire.
Amplifiers contribute nothing to imaging, that's a funtion of teh recording
and the speakers.

ABX is the accepted standard for audio research into subtle differences.

It is a simple matter thse days to build auio equipment that is sonically
neutral, that is neither adds nor subtracts from the input signal.

An ABX box does not mask any differences.

Vinyl LP's are an iferior medium and have several orders of magnitude more
distortion than CD's, which is not to say that there are not some really
awfull sounding CD's.

Global feedback is not something that makes amps inferior, but if to much is
used it will affect the way an amp clips.

Stereophile has some of the most incredibly idiotic and hearing impaired
reviewers on the planet working for them and they frequently endorse snake
oil.