The preamp in Pani's system uses metal film resistors & metallized polypropylene capacitors plus an Alps volume control. I have never heard on but based on my experience so far, the metal film resistors are used for speed and clarity with an ALPS volume control. Comparing this to Charles1dads Coincident DHT preamp, they are completely different sounding. Transformer coupled DHT already has a clarity and tone that most capacitor preamps cannot offer and the Coincident also uses a TVC volume control that offers resolution that the ALPS cannot even approach. BTW Charles, you should consider using Shinkoh resistors in the preamp. I have found them to offer the most emotion of all of the resistors that I have tried. In the preamp that I designed, you can switch between 6 different resistors so that you can tune the sound to your preamp without having to choose a cable to taylor your system sound.
Happy Listening.
Happy Listening.