Stewart Pinkerton wrote:


This is based on a 5k source impedance which is about what my phono is,
you may (with some justification) argue that thats higher that it would
be with a competently designed SS source, but thats what I was using
when I heard the difference I described.


Let's be clear about this - I don't believe that you 'heard' anything
with a real physical existence. A high output resistance can certainly
introduce a noticeable treble droop with a long run of
high-capacitance cable, but what you're describing should be barely
measureable, and certainly not at all audible.

OTOH, I can of course easily demonstrate dufferences between two
cables, which you will easily hear - even though I won't actually have
switched the cables....................


Well after trying again, I still believe I can hear a describable and
dectable difference. However attempting to record this to PC has failed
I can't tell the recordings apart (even though I know which is which).
But thats not that odd as there is 15 foot of thin shielded cable
between the amp and PC. I may try again tomorrow with a buffer driving
the cable to the PC.

Next time I have a extra set of hands about, I will try and do a more
controlled comparison between the cables.

--
Nick

On Tue, 23 Dec 2003 17:48:37 +0000, "=(8888)="
wrote:

(Stewart Pinkerton) wrote:

Given the capacitance Arny quoted that would be a -0.1db at 20k
compaired to 2k, I agree that you may not be able to hear that, but I
wonder if the 9deg phase shift would be audible.

It's not, and there's a £1,000 guarantee on that! :-)

This is based on a 5k source impedance which is about what my phono is,
you may (with some justification) argue that thats higher that it would
be with a competently designed SS source, but thats what I was using
when I heard the difference I described.

Let's be clear about this - I don't believe that you 'heard' anything
with a real physical existence. A high output resistance can certainly
introduce a noticeable treble droop with a long run of
high-capacitance cable, but what you're describing should be barely
measureable, and certainly not at all audible.

OTOH, I can of course easily demonstrate dufferences between two
cables, which you will easily hear - even though I won't actually have
switched the cables....................
--

Stewart, please post the formal rules for the competition in their
entirety.

Can't be arsed tonight - check Google.
--

Stewart Pinkerton | Music is Art - Audio is Engineering

On Tue, 23 Dec 2003 17:48:37 +0000, "=(8888)="
wrote:

(Stewart Pinkerton) wrote:

Given the capacitance Arny quoted that would be a -0.1db at 20k
compaired to 2k, I agree that you may not be able to hear that, but I
wonder if the 9deg phase shift would be audible.

It's not, and there's a £1,000 guarantee on that! :-)

This is based on a 5k source impedance which is about what my phono is,
you may (with some justification) argue that thats higher that it would
be with a competently designed SS source, but thats what I was using
when I heard the difference I described.

Let's be clear about this - I don't believe that you 'heard' anything
with a real physical existence. A high output resistance can certainly
introduce a noticeable treble droop with a long run of
high-capacitance cable, but what you're describing should be barely
measureable, and certainly not at all audible.

OTOH, I can of course easily demonstrate dufferences between two
cables, which you will easily hear - even though I won't actually have
switched the cables....................
--

Stewart, please post the formal rules for the competition in their
entirety.

Can't be arsed tonight - check Google.
--

Stewart Pinkerton | Music is Art - Audio is Engineering