EtherREGEN

The EtherREGEN is a great product. I've gone with fiber so I no longer need it. I also have a Farad Power supply and Paul Pang clock that I used with it. If you are interested in those I can do a package price. Due to supply change issues the EtherREGEN is no longer available. 

Please check my feedback. Sorry no shipping outside the USA. 

​​​​​​Description and Features
The UpTone Audio EtherREGEN Ethernet switch utilizes the same oval-shaped aluminum case used for many UpTone Audio products, and measures 112mm x 110mm x 30mm. Of note, UpTone has specifically designed EtherREGEN so that it does not require an external linear power supply to provide nominal performance. Rather, it comes with an UpTone Audio switch-mode power supply specially designed to prevent the passage of high source-impedance leakage current to the EtherREGEN (more on this later).

The EtherREGEN is unique among Ethernet switches in that it uses a circuit topology called the Active Differential Isolation Moat or ADIM that completely isolates the side of the switch used for connecting network devices (typically the “A” side) from the side connected to the renderer, network bridge, or streamer (typically the “B” side). The ADIM provides electrical, galvanic, and noise isolation between the two sides. I’ll discuss the rationale and function of the “moat” in more detail in its own section in this review.

On the “A” side of EtherREGEN is a SFP (small form-factor, pluggable) cage for making fiber optic connections using an optical transceiver (Figure 1) and an RJ45 module composed of four specially manufactured copper Ethernet ports with status lights. There are 12 transformer cores in each port and the center-taps of these cores are grounded using capacitors to block port-to-port leakage current.

The “B” side of EtherREGEN (Figure 2) has a DC-power barrel jack, ground post, a single 100-Megabit RJ45 port with status lights, a switch for selecting the internal or an external clock, and a BNC connector for connecting an external clock, if hot-rodding your EtherREGEN is desired. The standard impedance for the clock connector is 75-ohm, but a 50-ohm clock connection can be ordered from UpTone Audio at no additional charge. While EtherREGEN works identically in both directions, the “B” side is typically connected to the computer, streamer, network bridge, endpoint renderer, etc., with a copper Ethernet cable. DACs that have an Ethernet input can be directly connected to the “B” port.