Mackie MDB-2P Stereo Passive DI Box - DI Box

Mackie MDB-2P Stereo Passive DI Box is a compact and robust passive direct box designed to provide clean, reliable signal conversion for stage and studio use.

Built in a black, road-ready housing, the Mackie MDB-2P accepts stereo instrument or line-level signals and presents them as balanced outputs, making it ideal for bass guitar, digital piano, guitar and synthesizer setups. The unit measures 86 mm wide, 147 mm deep and 38 mm high, and weighs 400 g, so it’s easy to rack, mount or tuck into pedalboards and rigs.

Technically, the MDB-2P covers a wide frequency range from 20 to 20,000 Hz, ensuring full-spectrum fidelity for low bass and detailed highs. The passive design delivers an impressively low total harmonic distortion of 0.002%, preserving the character of your instruments without adding coloration.

This DI box offers an input impedance of 140,000 Ω and an output impedance of 400 Ω, with two XLR outputs for balanced feeds to mixers or interfaces. Its passive topology makes it simple to operate—no power required—so it’s ready whenever you are on stage or in a studio session.

Use cases include connecting a bass guitar directly to a mixing console for a clean, punchy low end, sending a stereo digital piano signal to front-of-house, or splitting a synthesizer’s stereo outputs to recorders and monitors. Touring musicians, session players and live sound engineers will appreciate the straightforward reliability of the MDB-2P.

Key selling points include the wide 20–20,000 Hz frequency response, ultra-low 0.002% THD, two XLR outputs for stereo balanced connections, and a compact, lightweight metal chassis for durability on the road.

Whether you need a dependable passive DI for live gigs, rehearsals or studio tracking, the Mackie MDB-2P Stereo Passive DI Box delivers transparent signal conversion and flexible connectivity in a portable package.

• Passive direct box for instrument and line levels
• 20–20,000 Hz frequency range
• Two XLR balanced outputs (stereo)
• Input impedance 140 kΩ / Output impedance 400 Ω
• Compact, rugged black chassis (86×147×38 mm, 400 g)