As far as I’m understanding this thread the Extreme is an extremely thoroughly designed, developed and optimised piece of kit for local and remote streaming, but with the information on footers, USB cables and fibre optics, we see that its still not immune from its environment. The enemies of great digital sound are, amongst other things:
- Vibration
- Conducted EMI
- Radiated EMI and RFI
- Jitter and resulting phase noise
- Mains distortion, noise and sub optimal earthing
The Extreme has several measures to address/minimise these issues but its still vulnerable to certain aspects of its installation environment.
The casework of the Extreme is built to exclude EMI & RFI and is as optimum as it can probably get given the thorough approach.
The fibre optic input is the definitive way to isolate and therefore avoid conducted EMI and the only noise from this source is going to come from the conversion of light to volts
Vibration is still an issue and we see from previous posts that the Extreme benefits from careful siting that includes at least external vibration reduction
The Extreme includes a very robust power supply, so internal power seems to be highly optimised and stable
Which leaves; conducted and radiated EMI and RFI picked up and transmitted by cables and the mains supply and jitter and phase noise.
The EtherRegen is designed to address exactly those issues, isolating the ethernet feed from conducted noise and reclocking the data. Again as i understand, the Extreme is designed to work with asynchronous DACS, so reclocking of the incoming data stream SHOULD have no effect. However other top class installations have without exception (as far as I’m aware) always shown benefits from greater upstream clock accuracy, so its probably just as important for the Extreme. Maybe its designers could comment on internal measures taken to clean-up and retime the incoming data stream.
I’ve spent a lot of time in ridding my system of the above digital nasties and the results are considerable in terms off achieving fully immersive, highly involving, complex, natural sounding and highly addictive music. I could imagine that adding an EtherRegen could be the cherry on top of the cake....especially considering its price.