Mackie MDB-1P Passive Direct Box
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An essential tool for every musician and engineer, the MDB-1P Passive DI has everything you need to adapt unbalanced, high-impedance audio to a balanced, low-impedance output with minimal noise. Featuring a 1/4” high-impedance input and thru with -15db pad and a balanced XLR output with ground lift.
Perfect for guitars, basses, and more for stage and studio
High-impedance 1/4" input with Thru output
Balanced male XLR output connector with Ground Lift
Ultra-low noise and distortion
-15dB pad ensures distortion-free performance when connecting to high-output sources
Built-Like-A-Tank™ construction
MDB Series Direct Boxes
From acoustic guitars to laptops, always sound your best with MDB Series Direct Boxes. Available in four different models, the MDB Series will give you the peace of mind that your sound will faithfully get to your audience the way that you hear it on stage. 
Direct boxes are an essential tool for any stage or studio. They make it easy to get clean, low-noise audio to a mixer no matter what instrument you are using. Available in four versatile models, our ultra-affordable DI's offer the Mackie sound quality that you expect with Built-Like-A-Tank™ construction for maximum reliability. From acoustic guitars to laptops, be ready for anything with MDB Series direct boxes.
THE PERFECT MATCH
With four models to choose from, you can get the perfect match for your instruments. Acoustic guitars and keyboards are right at home with the MDB-1P and MDB-2P.
High output instruments will appreciate the extra headroom in the MDB-1A.​
PREMIUM ANALOG CIRCUITRY
MDB Series direct boxes offer excellent noise performance and transparency. Whether you are in the studio or performing on stage, your instruments will always sound as good as they do at the source.
BUILT-LIKE-A-TANK™
From the inside out, MDB Series direct boxes are built to last. Thick steel chassis, impact resistant corners, and long-wearing jacks will keep these in your bag for years to come.
GET THE BEST SOUND FROM YOUR LAPTOP
The MDB-USB is the ultimate way to get pristine digital audio from your laptop directly to a mixer or front-of-house in a venue.