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The Mackie MDB-USB is a USB-powered stereo DAC direct box designed to connect stereo a signal from USB to microphone preamps for DJs, producers, musicians, and audio engineers in recording sessions, clubs, houses of worship, and live stage applications. It converts a stereo digital audio feed at up to 24-bit/96 kHz resolution via a USB 2.0 Type-B input to low-impedance, mic-level analog outputs via two balanced XLR 3-pin jacks. A 3.5mm headphone output is provided for easy monitoring.

Optimize your gain stage using the level knob, which adjusts the output volume at the XLR and 3.5mm jacks. The mono on/off switch enables operation of the MDB-USB in stereo or mono. Its ground-lift switch inhibits hum caused by ground loops. A sturdy steel chassis enables confident use in the studio or on the road.

The MDB-USB features a download for ProTools | First and The Musician's Collection plug-in package including 23 high-quality plugins with BBD Delay, Level Lite, 304E EQ, and 304C Compressor. To authorize the software, simply input the mixer's serial number on the website.

Features

• Connect the USB output from a stereo mixer, audio interface, or computer to microphone preamps
• Converts stereo digital signal from a USB connection to low-impedance, balanced XLR mic-level analog outputs
• USB 2.0 Type-B female input
• Two XLR 3-pin balanced outputs
• 3.5mm stereo headphone output
• Supports up to 24-bit / 96 kHz resolution
• Mono switch allows easy sum-to-mono functionality
• Ground-lift switch minimizes hum
• Level knob controls overall volume to the XLR and 3.5mm output jacks
• Powered via USB connection

Specifications

Type DAC Input Connections 1 x USB 2.0 Type-B female Output Connectors 2 x XLR 3-pin balanced
1 x 1/8" (3.5 mm) stereo mini-jack Input Impedance 330 kOhms balanced Output Impedance XLR: 600 Ohms balanced
3.5 mm: 150 Ohms unbalanced Controls 1 x mono switch
1 x ground-lift switch
1 x level knob Supported Resolution Up to 24-bit/96 kHz Frequency Response 20 Hz to 20 kHz (±0.5 dB) Dynamic Range 88 dB Total Harmonic Distortion 0.01% Power Requirement USB, 90 mA System Requirements Mac OS

Windows 7, 8, or 10 Supports WDM, MME, Core Audio, DirectSound, and WAV Construction Material Heavy-gauge steel chassis Dimensions 1.5 x 3.4 x 5.8" / 38 x 86 x 147 mm Weight 1 lb / 0.5 kg Packaging Info Package Weight 1.5 lb Box Dimensions (LxWxH) 7 x 5.8 x 3"