Rupert Neve Designs 517 DI - Mic Pre - Compressor with Variphase - 500 SeriesBased on the Portico 5017 Mobile Pre, the 517 provides world class, transformer coupled preamp, compressor and DI circuitry, with Vari phase, Silk and DI mic blending capabilities in a 500 series model. As the first 500 series module designed by Mr. Rupert Neve, the 517 incorporates outstanding sonic quality with an indispensable feature set. Features: Silk Much could be written about this feature, suffice to say, that it gives a subtle option to