This allows for increased headroom along with the ability to lift the audio ground without losing phantom power. The JDI Stereo is a simple 2-channel version of the original. The JDI stereo saves space and offers simplified connectivity compared to the Duplex, but the same Jensen transformers that made the JDI famous can be found inside, eliminating hum and buzz while handling excessively hot levels with ease. Best of all, the J48 Stereo and JDI Stereo are built using the same rugged enclosure as their single channel versions, saving space and the need to tape boxes together.