Excellent condition sE Electronics DM3 Black ULTRA-HiZ INLINE ACTIVE DI for sale. It's in almost-new, excellent condition. The manual is also inside this tube. Please consider this opportunity. We aim to ship within 12 hours. A Beast of a DI For electric guitars, basses, piezo pickups, keyboards, synthesizers, drum machines, or laptops. The DM3 is a compact active inline DI with an Ultra-HiZ input and an impressive look. It will surely be the "key" to great sound! To power the DM3, you will need a separate preamp/mixer/audio interface that supplies 48V phantom power.