Phono preamplifier that supports MM & MC cartridge with ADC and USB output Record Box E: Pure vinyl listening pleasure plus recording functionality! Record Box E is an high-quality phono preamplifier that offers the possibility to convert your valuable vinyl into digital format. Record Box E accepts both MM & MC cartridges and gives audiophile music experience at an entry-level price. The integrated ADC works with Windows and MAC operating systems. You simply connect it via USB to your computers to digitised your entire vinyl collection.