The Klark Teknik DI 10P is a passive stereo DI box used to connect devices like MP3 or CD players, keyboards, or drum submixers to a mixing console. It requires no external power, and features a custom-built MIDAS transformer along with independent level controls for each stereo channel. Stereo RCA and 3.5mm inputs are summed to a single balanced XLR output, and an earth lift switch is included to address ground loop issues.