2. tech-talk
  3. 1314138026

The next best Tweak ???

There have been several postings at AA about a new tweak from the mind of a gent named unclestu that I would like to share with Audiogon members.

I really don’t know why it works or how it works.
This tweak will cost you about $10 bucks but hold on to your hats...

unclestu discovered that the Ground Control (that was designed by Bud Purvine and sold by AudioPrism)design could be improved on.

You will need to make two sets for your speakers.

What unclestu came up with is to take a 6V Lantern Battery, add a 1000uf Electrolytic capacitor across the top springs (+ to + and - to -) connect a wire to the negative side of the battery and then attach the other wire end to the negative post on your speaker.

I have also made a couple that I plug in to my Preamp and Amp. Those were made with RCA’s ground on the wire end and I used 9V batteries utilizing 9V battery clips.

I've got to say, big improvement across the board, Soundstage, bass, mids, treble. But the most dramatic change is in the dynamics.
128x128ozzy
pixelphoto
70 posts
 
If there are no + or - indicators on the cap the longer lead is the positive lead and the shorter lead is the negative lead.
jedinite24's avatar
jedinite24
1,502 posts
 
Hi Ozzy

I got the polarity correct this time and didn't blow up the caps. I'm still evaluating the tweak though. I need to do more listening with it in place and haven't been able to carve out the time.

Hi Pixelphoto

I learned what you stated the hard way after I had blown the original caps I had purchased. When I got the new 50V rated caps I took a look at the leads and saw the differences in length. Then I recognized the arrow pointing to the negative side. I feel dumb about what happened but hopefully this will help any novice.
pixelphoto
70 posts
 
Hay Jedinite
I had the same problem with not knowing which lead was which but slbenze over at Tweakers' Asylum clued me in. I just bought two more caps at Fry's and these have even length leads but do have arrows. I just attached them to the 6V batteries at my speakers and the main result is more dynamics.
Happy listening!
ozzy's avatar
ozzy OP
3,650 posts
 
Pixelphoto. Glad the tweak works for you. The Capacitors real are something.
I've noticed that too many of them in the chain adds depth but loses the 3D effect.
So far, at the Speakers with a 6V Latern battery is a real plus!
At the Amp and Preamp with 9V battery and a RCA plug another plus!
Adding one to my Cd player seemed too be too much of a good thing.

Also, putting one on my LCD and Cable Box was positive in improved picture quality. But on my LED TV I could not tell if there was an improvement.

Really interesting the way some items improve.
ozzy's avatar
ozzy OP
3,650 posts
 
I have been advised that a 10K Cap works even better. So I bought a package of 10 including shipping for $15 on Ebay to try.
More to discover