I have added a couple of additional changes to the DUET mods.
I hope it doesn't become too confusing.
I have added a Digital Enthusiast PLUS mod. This adds TWO voltage regulators to the digital only mod. This gives an even cleaner DC feed to the clock and digital output circuit.
In the Digital Enthusiast mod, one regulator was added. This replaced the internal switching supply and improved the noise level. With the second regulator, noise level is lower and dynamics even more improved. This is the same mod done in the DUET Enthusiast Full mod but without the coupling caps or analog connectors.
At this point, this is the best sounding mod for the DUET used with an external DAC. I have done a few of these mods on a custom basis and was so impressed with the sound I felt I had to add them to the website.
You can find a description and place an order
here