The REGEN's primary function is to generate a completely new USB data signal from a carefully chosen USB hub chip running from an ultra low-noise regulator and low-jitter clock—which it does with ideal impedance matching and right at the input of your DAC. Its secondary function is that it interrupts the 5VBUS of the USB cable coming into it, and provides clean 5VBUS on its output—for DACs that need it—via a second ultra low-noise regulator.
This is the introduction page for the Smith Chart, giving a tutorial on Smith Charts and the application to impedance matching. From here you can click the links to enter the Smith Chart tutorial pages, and learn about impedance matching for antennas.
Factor VC-6 Speaker Selector Impedance matching 6 Stereo Zones
Speaker Impedance Matching (Connecting Multiple Speakers Properly) - Get it on Amazon: http://www.amazon.com/dp/B015MQEF2K - http://outdoors.tronnixx.com/uncategorized/speaker-impedance-matching-connecting-multiple-speakers-properly/