Mackie MDB-USB Stereo DAC Direct Box

PA SKU # MAC MDBUSB MFR # MDB-USB UPC # 00663961054019
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  • Product Highlights
  • Route a Stereo USB Source to Mic Inputs
  • Converts USB to Balanced Analog
  • USB 2.0 Type-B Input
  • Two XLR 3-Pin Balanced Outputs
  • 3.5mm Stereo Headphone Output
  • Stereo or Mono Operation, Level Control
  • Ground-Lift Switch Minimizes Hum
  • Powered via USB
  • Pro Tools | First and Waveform DAW
  • Includes Plug-In Package

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.

The MDB-USB features a download for ProTools | First and Waveform software 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.

  • 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
  • Professional Production Content
  • Content
  • Pro Tools | First and Waveform OEM professional software and plugin packages included
  • The DAW Essentials Bundle for Waveform OEM includes 16 powerful plugins like Equalizer, Compressor, Reverber8, and Limiter
  • Included Software from Avid, including Pro Tools | First
  • An industry standard for decades, Pro Tools | First is easy enough for beginners yet sophisticated enough for experienced musicians. Get many of the same tools used by your favorite artists and recording studios. And now you can collaborate online with anyone, anywhere, and create at the speed of your imagination. Available for macOS and Windows operating systems. 
  • In addition to the powerful plug-ins within Pro Tools | First, this mixer comes with the exclusive Mackie Musician Collection featuring 23 fantastic plug-ins, including:
  • Avid 304E EQ: Add musical warmth with a treble and bass equalizer with sweepable mid control
  • Avid 304C Compressor: Tweak the clarity, balance, and rhythmic feel of music with this optical-modeled compressor
  • BBD Delay: Create delay, chorus, and vibrato effects based on a classic guitar pedal
  • Black Op Distortion: Add rich distortion based on a classic distortion pedal
  • Black Shiny Wah: Achieve the famous classic tones of a respected wah wah pedal
  • Black Spring Reverb: Get the twang and space of a vintage amplifier
  • C1 Chorus: Emulates a classic chorus pedal
  • DC Distortion: Dial up a range of overdriven tones with this Avid custom distortion effect
  • Eleven Lite: Get the sound of popular guitar amps and speaker cabinets
  • Flanger: Create esoteric sounds with this homage to vintage and modern flangers
  • Graphic EQ: Sculpt frequencies with ease
  • Gray Compressor: Add warmth to tracks based on a vintage Ross compressor
  • Green JRC Overdrive: Get the coveted sounds of a classic IC overdrive pedal
  • In-Tune: Keep your instruments in tune with this digital tuner
  • Orange Phaser: Create interesting effects with this phase shifter based on a classic design
  • Roto Speaker: Recreate the sounds of a Leslie rotary speaker cabinet
  • Sci-Fi: Add analog synth-type ring and frequency modulation
  • Studio Reverb: Create natural-sounding reverb and ambient effects
  • Tape Echo: Add vintage analog delay and chorus effects
  • Tri Knob Fuzz: Get the Hendrix tone with this fuzz box based on one of the first fuzz pedals
  • Vari-Fi: Create the effect of audio changing tape speed
  • Vibe Phaser: Add phase-shift and rotary speaker effects
  • White Boost: Boost gain without coloring tone
  • 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 (H x W x D): 1.5 x 3.4 x 5.8" / 38 x 86 x 147 mm
  • Weight: 1 lb / 0.5 kg
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