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In Reply to: RE: Yes posted by unclestu on January 05, 2013 at 14:48:47
Thank you all for posting about the loops. I went ahead and gave it a try, twisting two 2mm diameter magnet wires, 8 inches long each, then connected in loop to the negative speaker post. I'm amazed by the improvement!
So if Litz wire is claimed to be better, maybe taking the guts out of several pieces of CAT5 cable, then soldering the ends together should be better than my large gauge twisted pair, right?
Stu: is the effect cummulative if I have the loops on the speaker terminals and then add a loop on the amplifier's speaker terminals?
A very nice tweak indeed!
Follow Ups:
I haven't tried it, but I imagine simply soldering the ends of a cat 5 cables all together will be an improvement over a simple twisted pair.
I solder my loops to the negative of an RCA end and simply plug it in to unised jacks on a preamp or DVD player: works wonders. And it is extremely easy to AB
Stu
"I solder my loops to the negative of an RCA end and simply plug it in to unised jacks on a preamp or DVD player: works wonders".
Good idea! Will try it out. Do you use it on the preamp unused RCA outputs or inputs?
Regarding the battery ground loop:
I see you use 10,000 uF caps across the battery + and -. Any other characteristics of the caps being used?
I have seen posts about regular 9V batteries and 6V 4Ah batteries. The latter are much larger, therefore more challenging to hide. Have you noticed the 6V 4Ah batteries to perform better for this application?
In your experience, battery ground loops have had more impact placed on your speaker terminals, amp's speaker terminals, or preamp's unused RCAs? Source is not an option for me as it's only a Metrum Octave with no unused RCAs.
Thanks a lot for sharing all this!!
for being so late in answering.
In my experience, which includes running a few lead acid battery types, I did not notice asignificant difference sonically. I did notice with greter cpoacitance tht the effect is increased, and am running as much as 100KuF on my DVD player. when running tha much capacitance, it becomes very much like a power supply and you need to add a bypass cap to suit your taste. while I use electrolytic caps for the basic uF's I bypass with a 1.5 uF film cap.
You can plug in the battery ground tweak into any RCA jack which is not used, or a phono ground, or a negative speaker terminal with out suffering any harm. Source components seem to benefit the most.
Stu
I had an experience that no one else has reported. After about four hours the high end fell off. It returned and was great after about eight hours. It is hard to explain breakin on a wire that does nothing.
I am not quite sure what you mean by a twisted pair. However, I recall when I used my Teflon clad CAT5 there was some instability in the sonic imagery for a period of time. Teflon is well renown in the DIY audio community of requiring a break in period. My experience with Teflon clad ground loops substantiates that notoriety.
DaveT
a
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