Mackie
Direct Boxmackie
Best stereo interface for musicians connecting laptops to professional audio gear.
This versatile stereo DAC direct box connects digital USB audio sources to traditional microphone preamps, bridging the gap for DJs, producers, and live sound engineers. It converts stereo digital audio up to 24-bit/96 kHz resolution into balanced analog outputs. Essential features include a ground-lift switch to minimize hum, a level control for gain optimization, and stereo or mono operation. Its robust steel chassis ensures durability for both studio and stage, offering reliable performance and excellent transparency.
$149.99
Owner Satisfaction
4.7
/ 5
Category Rank
34
/ 185
#34 in Direct Boxes
Price vs Category Average
-43%
Below average
Type
DAC/DI Box
/ DAC/DI Box
Who it's for
- Touring musicians needing gear that survives rough road conditions
- Live sound engineers troubleshooting persistent ground loop hum
- Budget-conscious performers seeking reliable professional signal conversion
Who should skip it
- Audiophiles seeking vintage warmth or harmonic color in their signal
- Players using high-impedance instruments sensitive to signal attenuation
- Pedalboard users requiring a compact, space-saving footprint
Performance breakdown
Build Durability
Steel chassis design ensures it survives the rigors of constant touring.
Audio Fidelity
High-resolution 24-bit/96 kHz conversion delivers clean and accurate digital playback.
Connectivity Versatility
Seamlessly bridges laptop digital audio to professional analog mixing consoles.
Noise Management
Effective ground-lift switch eliminates common hums and unwanted electrical interference.
Monitoring Utility
Dedicated headphone output allows for quick, reliable signal checks on site.
Signal Control
Integrated level knob and pad switch provide precise gain staging control.
Key Specs
Type
DAC/DI Box
Input Connections
1 x USB 2.0 Type-B, 1 x 1/4 inch TS
Output Connectors
2 x XLR, 1 x 1/8 inch (3.5 mm) stereo mini-jack
Input Impedance
330 kOhms
Output Impedance
600 Ohms
Controls
Mono switch, Ground-lift switch, Level knob, -15dB Pad
Supported Resolution
Up to 24-bit/96 kHz
Frequency Response
20 Hz to 20 kHz (±0.5 dB)
Know before you buy
No, the MDB-USB is entirely USB-powered. It draws its power directly from the connected laptop or computer, making it a convenient solution for mobile setups.
Yes, the unit features a dedicated mono switch. This allows you to easily combine your stereo USB audio feed into a mono signal for your outputs.
The ground-lift switch is designed to eliminate unwanted hum or buzz caused by ground loops. It is a standard feature that helps ensure a clean, noise-free signal when connecting to different sound systems.
Yes, the MDB-USB includes a 3.5mm headphone output. This allows you to monitor your audio feed in real-time while the level knob controls the volume for both the headphone output and the XLR outputs.
The MDB-USB supports high-quality digital audio at resolutions up to 24-bit/96 kHz, ensuring clean and transparent sound reproduction for your recordings or live performances.
Absolutely. The MDB-USB features a 'Built-Like-A-Tank' steel chassis, which is designed to withstand the rigors of frequent transport and demanding live environments.
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