Cable directionality (split from distortion)

[mrfeedback]

The UPS van came past today with the test cables.
Thanks Steve and Stuart, I now have 3 twisted pairs each with a heatshrunk sleeve at one end.
Which of these is pair 1, 2 and 3 ????.

Eric.

[mrfeedback]

Steve, what is the configuration of these twisted pairs ? - ie are both legs of each twisted pair in the same direction, or opposed.
What is the identifier so that we can report findings ?.

Eric.

[SY]

If Steve doesn't respond because you're on his "ignore" list (a feature I selfishly wish people wuld use more often), I'll email him and ask. Then again, he may see this (if I'm not on his "ignore" list ) and respond here.

[Steve Eddy]

Originally posted by SY
If Steve doesn't respond because you're on his "ignore" list (a feature I selfishly wish people wuld use more often), I'll email him and ask. Then again, he may see this (if I'm not on his "ignore" list ) and respond here.

Steve, what is the configuration of these twisted pairs ? - ie are both legs of each twisted pair in the same direction, or opposed.
What is the identifier so that we can report findings ?.

Both legs of each pair is in the same direction. The only identifier is the heatshrink which identifies the common ends of each pair (in this case, the ends were the ends closest to the spool).

There's no need to give each pair its own identity as these were meant simply so you can try them out and determine whether they were sufficiently directional that you'd feel confident identifying directionality in the blind trials.

Identifying the common end will allow you to wire one pair in one channel in one direction and another pair in the other channel in the opposite direction, which is what you said produced the most significant differences (i.e. image shifting) with respect to directionality.

Unless you have any more questions about the wires I made up, my involvement in this is over except for sending SY the remainder of the wire.

se

[mrfeedback]

IOW all three cables are exactly the same ?.

It will take me a few days to get half a dozen RCA plugs so that I can do this testing easily, and I'll get back to you with what I find.

Steve, you proposed this test and have gone to the trouble and expense of starting this, so why not stay along for the ride, and the second stage (assuming that Frank and I find directional differences in this wire) ?.
Even if this wire is not particularly directional, I can send you audio coaxial cable that is strongly directional.

Regards, Eric.

[SY]

No need for Steve to get too much into the mechanics. I'm happy to do that, and I suspect he'll be keeping an eye on the results. Let us know if you feel confident about hearing the directionality of the sample wires in an open (sighted) comparison.

[mrfeedback]

Fine by me, except I am failing to see the point of going to the trouble of all of this if Steve is unwilling to participate, or communicate.
Frank and I have satisfied wire directionality effects to our own individual satisfaction in past experiments, so this is just more of the same to us.
Does this experimentation have any future, or is it that now we have now risen to Steve's challenge that he is backing down ?.

Eric.

[fdegrove]

Hi,

Lutefisk?

Anyway, it doesn't really matter to me....

It will tell us a few things about this particular wire:

1/ Directional or not.

2/ I've probably lost my touch when it comes to directionality.

3/??? Who knows.

It's an afternoon of work, I think we owe Steve at least that much.

Cheers,

[SY]

From what I understand, Steve will provide me with the cables, cut from the same reel of wire as the samples you have. I'll mark them, code them, record a score sheet, give a copy to someone else, then send the wires on to you and Frank. All this presupposes that you believe that you hear a difference in the open (sighted) comparison.

Steve's just not comfortable with dealing with you guys directly. I certainly am, you guys trust me and vice versa. All praise to Steve, you, and Frank for doing the hard part- I'm just trying to help things along.

[RHosch]

I believe it is simply a matter of there being no need for Steve to be actively involved in your listening tests. He has made the trial cables, and if you are satisfied that the effect you expect is present, the test cables will be sent to you. SY can handle the gathering, sorting, and posting of results. I think it is very practical that Steve's involvement at this point be minimal, if only to reduce the chance of accidentally communicating clues which would invalidate any results gathered.

If you and Frank successfully identify the directionality of the test cables, then I assume Steve will be very interested - and actively participating in - future discussions about what mechanism(s) might be responsible and what steps are appropriate to take next.

From my perspective, it simply seems that there isn't much of anything for Steve to do until you and Frank return results to SY.