CAD Ground Controls GC3.1

CAD Ground Controls GC3.1

GC3.1 Ground Controls use improved internal materials that work across a broader frequency spectrum. The newer GC3.1 also attenuates (reduces) a greater amount of noise than the previous GC3.

Over the past 10+ years the amount of high frequency noise on our Mains power has increased dramatically due to the use of computers, routers, modems, wifi, switch mode power supplies, etc. The high frequency noise that is generated within our audio systems has also increased: DACs, Servers, Computers, NAS drives, Routers, WiFi, etc. are all connected directly to our audio systems.

CAD believes that one of the key reasons so many digital audio products “sound digital” is due to this high frequency noise. From the very beginning of CAD we have worked hard to reduce unwanted noise in all our products. Materials and technologies that are used in our 1543 MKII DAC, USB Cables and CAT are included in the GC1.1, GC3.1 and GC-R Ground Controls.

The Ground Control contains a mixture of materials that converts high frequency energy into heat. Our research has found that to achieve the best sound quality the GC1.1, GC3.1 & GC-R needed to be effective over a large frequency range. This was not easy to accomplish! The CAD Ground Controls will reduce noise from about 1MHz up into the GHz range.

The CAD GC1.1, GC3.1 & GC-R Ground Controls can be connected to any audio product that has an unused output or input connection. If your DAC, streamer, computer, phone stage, preamplifier, amplifier, CD Player, NAS, etc. has a spare output/input connector like an RCA, XLR, Spade, USB or BNC you can connect the Ground Control to that. We supply a range of interconnects with various connectors. The other end of the connector has a single 4mm banana plug that attaches to the Ground Control.

There are two 4mm banana sockets on the back on the GC1.1, six on the back of the GC3.1 and eight on the GC-R.

We typically get the best results connecting the CAD Ground Control to the device in your system that has the highest noise levels: components like audio phono preamplifiers, servers, DACs, CD players, NAS, routers etc. or by connecting the CAD Ground Control unit to mains Earth. The GC3.1 & GC-R work exceptionally well connected to your mains Earth connection and directly to the cases of your amplification.

The gain on these devices is large and the reduction of noise that the Ground Control provides has brought some amazing results.