Synergistic Grounding Block and Tweaking it.



Synergistic Grounding Block and Tweaking it.

I always liked the Synergistic Products and I have to give them credit for bringing out some of the most unique tweaks available today. There interconnects, speaker cables, and power cables were always top notch, perhaps a little pricey, but I always hated all of those extra mini couplers wires! So, I moved away from their wires. I think there new series does away with the extra mini couplers, but they are still IMHO still quite pricey.

I wanted to try the Synergistic Grounding Block. The price was not too expensive, so I ordered one from my dealer. Did I mention I always hated all those darn extra SR wires? This grounding block better impress.

Once I received it, I couldn’t believe the size of it. It is about 6 “long and maybe 1 ½” thick and about 2” inches high. At one end it has a hole for accepting a regular size banana plug and on the top there are 18 pin hole openings. The grounding block comes included with six (6) of the skinniest wires with the smallest banana plugs I have ever seen for grounding! There is also included another skinny wire that is connected to an AC plug (ground only) that plugs into the wall outlet with the other end having a standard size banana that connects to the side of the grounding block.

Well, since I only own one other SR product, I changed five (5) of the rest of the banana plug ends to RCA so I was able to try it with my own non SR equipment.

To my surprise, it did indeed make the soundstage purer and deeper. I don’t understand it? All of my equipment is plugged into dedicated grounded outlets, so why would this little diminutive grounding block with all those skinny wires do more?

Now, the tweaker in me took over. It seems SR also sells higher grade connection ground cables, but boy, are they pricey! Two of them cost more than the block itself! And the Synergistic grounding block can accept 18 of these ground connections!

I had some pure .9999 22 gauge silver wire left over from another project so I installed an RCA connector, sleeved it through some Teflon tubing and pushed one end into one of those 18 pin holes in the grounding block. To keep the wire from falling out of the pin holes, I pushed cut 2” lengths of some .999 18 gauge silver wire also into the pin hole which tightened up the connection. On the end, the RCA was connected to an unused RCA on my equipment. I also had some pure .999 16 gauge silver wire, so I installed this on one end with a regular banana, and then installed an AC plug (ground only) to the other end. This replaced the skinny wire that SR supplied to connect from the wall to the grounding block.

Sounding better… interesting!

On line I found some 12 gauge .9999 silver wire about 6 foot long, that cost about $50. But with this cable, to keep it pure throughout I used no connector on either end. I did this by shaping the wall outlet wire end into a V and pushed it into the wall outlet for a tight fit. The other end was crimped tight and shoved into the regular banana hole into the grounding block.

Each “upgrade” in wire went through a minor break in period. (hours not days) and doggone it, it did increase the purity of the sound.

So, now with the 18 available pin holes in the grounding block, I have all of my system connected. That includes my video and subwoofers!

Someday, I would like to try one of the higher grade SR cables to compare to my DIY version.

Folks, this little grounding block does work wonders and far exceeds the price to performance, but it is still a mystery to me. Plus all those darn wires!

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128x128ozzy
nyame:
Wonderful work. I  use the SR High Definition cables but wish I had your and ozzy's DIY skills. I found having the amp connected to the Grounding Block to be of major importance. Both sub woofers connected added additional clarity but it was a lesser improvement. 

It would certainly be interesting to compare your copper wires and ozzy's silver wires plugged into the same component. A tweaker's paradise for sure!

David Pritchard
Hi Ozzy
My thoughts on the grounding block:

Impedance is the resistance occurring in AC circuits. The lower the impedance the easier it is for electricity to flow. Impedance is found not only on the positive and neutral legs of the AC but also in the ground conductor portion of the circuit.

There are voltages even in ground circuits. These voltages will cause current to flow. The purpose of the grounding block is to cause maximum current flow through the connectors conducted to it. When this happens noise in the ground currents are shunted to earth ground and away from other components in the system. This has the effect of lowering the noise floor of the entire system, allowing information, previously buried by noise
to rise up and be heard. (only the head of a 6 foot tall man standing in in a swimming pool 5 feet deep can be seen. But, if you lower the water level to 4 feet deep, you will be able to all of him from from the waist up) Similarly.
the lower the noise floor in your system, the more musical information you will hear.

The reason for the massive increase in fidelity you heard when you connected your home-made silver cables, is that your cables have lower impedance than those that came with the grounding block. The circuit did not change. Only the cables changed.

I have experienced everything you mentioned in your initial post. Moreover I had ordered one High Definition cable ($375) and one standard definition cable ($100) with my grounding block. This allowed me to build my own cables and compare them to the Synergistic cables. I feel comfortable saying that your home built cables should equal the performance of the Synergistic HD  cable and far exceed the performance of the standard
definition cable. (The standard definition cable should not be confused with the thin black wires that came with the block. It is made of silver wire and a decent quality RCA connector.) I now have three high definition cables in my system. One to the wall, one to my SACD source and one to the pre-amp.

The grounding block has elevated the performance of both our systems beyond beliefs. Thanks for starting this thread.

nyame:

Wonderful post. I certainly agree with your results that the Grounding Block makes a big improvement in the sound  of a system. Then by using different connecting wires to components , one can fine tune exactly the changes that sound best.  Putting a SR HFT on the Grounding Block further affects the sound. Great product.

David Pritchard

davidpritchard

Are you referring to the new HFT 2.0 ? Does it add warmth to the system?
I noticed after inserting the 3rd high definition cable the overall sound became a little less warm, but with more detail.  I did not have a decent quality RCA connector to complete the final HD cable, so I purchased a $3.00 connector from a nearby Radio Shack just so I could finish the job. It is my intention to replace this temporary RCA connector with one of higher quality.  This should restore the warmth without sacrificing detail.

I have never seen a Synergistic Research HFT. Is it placed on top of the GB above vacant holes?

nyame,

Thank you so much for your explanation. It makes sense. For sure using the purest and thickest cable from the wall to the block is the best.

Also, if I haven't already stated this I am grounding it to an outlet outside of the 3 dedicated stereo AC lines. Seems to sound better.