The sE Electronics DM3 is a compact active DI box built for stage and studio use. Its Class-A output buffer delivers a clean, transparent signal path from instrument to desk, while the locking jack input ensures reliable connections in live environments. Designed for keyboards, guitars, bass, and any line-level source that needs converting to a balanced mic-level signal.
Active
Type · Phantom powered
Hi-Z
Input · Locking 1/4″ jack
Gold XLR
Output · Balanced
3-Step
Ground Lift · Off / On / On+ (RF)
Ground Lift OptionsThe DM3 features a three-position ground lift switch rather than the usual on/off toggle. The third position (On+) adds additional RF filtering, which is particularly useful in venues with heavy wireless traffic or LED lighting interference.
Features
Active circuitry with Class-A output buffer for clean, transparent signal
High-impedance input suits instruments and line-level sources
PAD switch for handling hot signals without clipping
3-step ground lift with dedicated RF interference mode
Locking 1/4″ jack input prevents accidental disconnection on stage
Gold-plated XLR output for reliable, low-resistance connections
Compact mini housing, fits on any pedalboard or stage box
Includes jack keyring accessory
NoteThe DM3 requires 48V phantom power from your mixer, interface, or stage box. This is the standard silver finish, a black variant is also available.
Specifications
| Type | Active DI Box |
| Input | 1/4″ jack (locking, high impedance) |
| Output | XLR (gold-plated, balanced) |
| Output Buffer | Class-A |
| PAD Switch | Yes |
| Ground Lift | 3-position (Off / On / On+ RF) |
| Power | 48V phantom power |
| Finish | Silver |
| SKU | DM3 |





