Mackie MDB-USB Stereo DAC Direct Box
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.
- 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
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Specifications
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Type
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DAC
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Input Connections
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1 x USB 2.0 Type-B female
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Output Connectors
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2 x XLR 3-pin balanced
1 x 1/8" (3.5 mm) stereo mini-jack
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Input Impedance
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330 kOhms balanced
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Output Impedance
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XLR: 600 Ohms balanced
3.5 mm: 150 Ohms unbalanced
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Controls
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1 x mono switch
1 x ground-lift switch
1 x level knob
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Supported Resolution
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Up to 24-bit/96 kHz
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Frequency Response
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20 Hz to 20 kHz (±0.5 dB)
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Dynamic Range
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88 dB
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Total Harmonic Distortion
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0.01%
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Power Requirement
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USB, 90 mA
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System Requirements
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Mac OS
Windows 7, 8, or 10
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Supports
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WDM, MME, Core Audio, DirectSound, and WAV
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Construction Material
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Heavy-gauge steel chassis
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Dimensions (H x W x D)
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1.5 x 3.4 x 5.8" / 38 x 86 x 147 mm
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Weight
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1 lb / 0.5 kg
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