Dear Neal, I cant speak for the analog outputs as they are no more than a pass-through from the IPod and defeats the whole purpose of the Wadia, bypassing the analog section so I never tried them. As far as the CIAUDIO 9VDC, yes, it produces an improvement in sound quality, I can't say it's "Earth shattering" but an enhancement non the less. If your looking to get the best out of your Dock possible, and can handle the $$ I would go for it. On a final note, the supplied switching wall wart power supply is not regulated and can create noise, with the CIAudio, it is a linear, regulated supply, so with the CI you effectively regulate twice, the CI regulator and the regulator in the Wadia dock.
I am using the digital out exclusively but would imagine the CI probably improves all aspects of the Dock. One important note is the Digital IC, perhaps explaining the negative review on the digital out where I am using a 1M Kimber Illuminations D60 connect (this wire cost MORE than the Wadia itself!! I hope this helps!
