Where it all begins.
Originally the SR Ground Block was engineered to improve Ground Plane performance on Atmosphere Series Level 2, 3 and 4 interconnects and speaker cables as well as all SR products with external ground plane connections like Galileo UEF, Tranquility Base isolation platforms, and FEQ and Atmosphere wave generators. We later discovered we could dramatically lower any system's noise floor by star-grounding its components to an SR Ground Block. Imagine hearing your recordings again, for the first time. Recordings you've been listening to for years suddenly become new with information and emotional connection like you've never experienced before. This is not an exaggeration, but a reality when you ground your system to the Ground Block with Basic Ground wires treated with 1,000,000 volts of electricity in a process we call Quantum Tunneling which improves the the ground connection between the connected component and the Ground Block's internal UEF Inductive Ground Filter. Available in nearly every imaginable configuration including Ethernet, RCA, XLR, banana or BNC, we even offer a Basic Ground cable for mini-phono jacks so you can ground computhers and their internal circuits to the Ground Block for an absolutely unbelievable improvement in sound.
Synergistic Research Galileo UEF and Atmosphere Cables
Synergistic Research Tranquility Bases
Synergistic Research Atmospheres
Turntables – Standard or Small Spade Connect to Ground Post on Turntable
Phono-stage - Standard or Small Spade Connect to Ground Post
Digital to Analog Converters (DACs) – Connect to spare Digital Input, Output or Chassis Ground
Reel to Reel Tape - Connect to spare Analog Input, Output or Chassis Ground
Pre-Amplifiers – Connect to spare Analog Input, Output or Chassis Ground
Power Amplifiers – Connect to spare Analog Input, Output or Chassis Ground. Note: Many power amplifiers will sound best without the ground engaged. Try your power amp and speaker cables with and without the ground attached and choose what sounds best for your system.
USB Devices – Connect to spare USB Input, Output or Chassis Ground
Audio Computers - 3.5mm Headphone Jack
Any Component with an active circuit inside – Connect to spare Input, Output or Chassis Ground
"One of the most significant effect results of reducing the noise floor and signal compression via the SR AGB SE allowed me to listen to music at much lower volumes without any loss of detail, silence between notes, and dynamics. Component changes alone have never resulted in the type of improvement the SR AGB SE brings to the table. With the SR AGB SE installed I was more engaged with the music and not left searching for it. The SR AGB SE is an integral part of my reviewing system. Highly recommended."
- Mike Girardi - StereoTimes - September 2018
"The Synergistic Research passive Grounding Block and Active Ground Block SE have become an indispensable part of our systems. It improves the sound in a way where component and cable swaps just can’t mitigate. If you want to maximize the potential of your system and experience fresh musical highs, we have no hesitation in recommending either of these Synergistic Research grounding blocks."
-Siao Jer - AudioBacon.net - March 2018
"The resulting impact of these three products is more than the sum of the parts. By that, I mean that with these devices it’s more of a “1+1+1 = 5” effect. The noise floor drops significantly, and with that, I feel like I am hearing everything my system was designed to perform. Honestly, I wish these three devices did not matter as much as they do. It’s a new can of worms to unravel and makes system setup a lot more complex. However, I would never go back to an “untreated” system. The new system sounds more dynamic, more detailed, more lifelike in the soundstage and timbre of the various instruments. In short, it sounds more musical, more real."
-Lee Scoggins - Part-time Audiophile - September 2018
"The more I listened to my system with the HDG cables and Grounding Block, the more I was convinced that the addition of these products are on the critical path in assembling a truly high performance audio system."
"you would be hard pressed to find a tweak, at this price point, that gives you better bang for your buck. If there is a better grounding solution available for audiophile systems at this price, I have not encountered it yet! That being the case, it was an easy decision to make it a part of my reference system."
-Malcolm Gomes - Positive Feedback - April 2019
"I was not prepared for the major sonic enhancement that these products delivered. The extent of the positive enhancements goes far beyond merely those of a “system tweak”."
"Synergistic Research has become a market leader of innovative audiophile products."
"The effect on our system was immediately obvious: A thin layer of hash that had been below my notice (Ain't it always the way?) was removed, clarifying a system that I already thought was exceptional."
"It certainly made a difference in our test room, making the system seem more organic sounding, more focused, with a bigger soundstage, and a significant reduction in low level hash."