Hello,
A lot of equipment has spare USB ports these days that manufactures use for software updates etc. Pretty much all of my front end gear has these spare ports. I spoke with Scott from CAD at AXPONA about his new USB ground devices. I thought the idea was intriguing. Then I read Roy Gregory's review over on GY8 a few months ago. (https://gy8.eu/review/the-cad-usb-control/) He spoke pretty highly of what these things do. So how could I resist.
I recently purchased several of the CAD USB Ground control devices. These are similar in function to many of the ground noise reduction boxes that have proliforated the market in the past few years. The main difference is that it is simply a dongle that plugs into an open USB port on a piece of equipment. So there is no wire to fuss with and the connection is very direct which should facilitate the noise reducition ability of the device. All I can say is that they work as advertised. Each time I plugged another one in the noise floor of the system dropped farther allowing more and more music to emerge. Let's say you buy one for the current retail of $750 and try it in a few different pieces to decide where you like it best. Then you come along and buy a second, third or forth one. When you plug the second one in the impact is not A+B. The sonic benefit is greater then A+B.
If you try one or two or more I would bet you will like it. But standard disclaimers apply -- YMMV.
A lot of equipment has spare USB ports these days that manufactures use for software updates etc. Pretty much all of my front end gear has these spare ports. I spoke with Scott from CAD at AXPONA about his new USB ground devices. I thought the idea was intriguing. Then I read Roy Gregory's review over on GY8 a few months ago. (https://gy8.eu/review/the-cad-usb-control/) He spoke pretty highly of what these things do. So how could I resist.
I recently purchased several of the CAD USB Ground control devices. These are similar in function to many of the ground noise reduction boxes that have proliforated the market in the past few years. The main difference is that it is simply a dongle that plugs into an open USB port on a piece of equipment. So there is no wire to fuss with and the connection is very direct which should facilitate the noise reducition ability of the device. All I can say is that they work as advertised. Each time I plugged another one in the noise floor of the system dropped farther allowing more and more music to emerge. Let's say you buy one for the current retail of $750 and try it in a few different pieces to decide where you like it best. Then you come along and buy a second, third or forth one. When you plug the second one in the impact is not A+B. The sonic benefit is greater then A+B.
If you try one or two or more I would bet you will like it. But standard disclaimers apply -- YMMV.