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Post by gumbo on May 4, 2010 8:52:24 GMT -5
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Post by JohnH on May 4, 2010 15:42:57 GMT -5
so, there's a hot inner core going tip to tip, and a cold inner core going to the sleeve at both ends and connected to the shield only at the amp end?
Its sort of like part of a scheme for a balanced cable, except the amp input is not balanced and neither is the guitar. I predict it will work fine but not make any significant difference as compared to a similar standard and length of normal cord.
John
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Post by sumgai on May 4, 2010 20:49:22 GMT -5
John, The idea is, and it seems to be gaining acceptance among the big boys, is that the wire conducting the negative side of the signal (the return path, if you're in ChrisK mode) is also shielded from outside interference. Said shield, being connected at only one end (that end being the closest one to the main ground connection, which of course is usually the amp) will, in theory, conduct any and all interference to the amp's ground. Of course, we are speaking only of what happens directly to the cable, not what happens to the guitar itself. Any noise received therein will still be carried by the signal return line, just as it was on the coaxial cable's shield. I don't think "balanced line" has anything to do with it, except that using cable suitable for such is a good thing, albeit probably a bit more costly. OTOH, having high-end, touring-quality cabling is usually worth the absence of most hassles and headaches. Depends on the current state of one's wallet, of course.  I can't speak to the capacitance issue, but I believe that the difference will be pretty small between 2-conductor w/shield and standard coaxial stuff. Over a 20 foot long cable, the difference might be noticible, but less than that length, I'm in doubt. (Of course, I am speaking to comparable quality cabling, not cheap versus high-end stuff.) HTH sumgai |
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Post by ashcatlt on May 4, 2010 23:47:39 GMT -5
Said shield, being connected at only one end (that end being the closest one to the main ground connection, which of course is usually the amp)... ...is connected to exactly the same place as the signal return, in fact to the signal return wire itself at the sleeve of the "amp end" of the cable. All that noise gets dumped, right along with the signal return, to the amp's ground exactly the same way it would if the shield was carrying the signal return to begin with. Shield lifting can be effective when connecting active, mains powered devices. In this case you'd be breaking a redundant connection between the two chassis, possibly eliminating a ground loop. I'm not buying it for guitar purposes. Reading further in the thread we find that dude tried the cable backward and noticed no difference. I think the important part is the indivdiually insulated wires in the tip conductor and the maximized skin effect. |
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Post by gumbo on May 5, 2010 9:15:51 GMT -5
weeelll...thanks A-C and S-G.....that was interesting: you both echoed the thoughts I'd had myself.. ;D ...still might try it for a laugh, although since these days I rarely go straight from Amp - to - Guitar (or is it the other way around?) due to the inclusion of a looper and multi-effects....one wonders where (and whether) this would be best placed to really gain any worthwhile advantage... ...then there's the OTHER times in my life when I'm going 13-pin in all directions as well... .........hmm! I'll endeavour to try it sometime in the next couple of weeks and report..  ....thanks for all your comments!! |
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