MOTU 828x Professional 28x30 Audio Interface with Thunderbolt Technology

BH #MAMO828X • MFR #4370
MOTU 828x Professional 28x30 Audio Interface with Thunderbolt Technology
Key Features
  • Compatible with Thunderbolt and USB 2.0
  • 28 Inputs
  • 30 Outputs
  • 24-bit 192 kHz Resolution
The MOTU 828x Professional 28x30 Audio Interface with Thunderbolt Technology is a 1RU 19" rackmountable digital audio interface that can connect to your 32- or 64-bit Mac or PC computer over Thunderbolt 1, Thunderbolt 2, or USB 2.0 (compatible with USB 3.0 ports). Up to six Thunderbolt devices such as displays and hard drives can be daisy chained together with the audio interface at the end of the chain.
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MOTU 828x Overview

  • 1Description
  • 2Thunderbolt Connectivity
  • 3USB Connection
  • 4I/O
  • 5CueMix FX
  • 6Front-Panel Control
  • 7Standalone Operation
  • 8Multiple CueMix FX Mixes
  • 9Flexible Mic/Guitar Inputs with Preamps
  • 10Mic/Guitar Instrument Sends
  • 11Instrument Tuner
  • 12V-Limit Overload Protection
  • 13Analog I/O
  • 14Precision Digital Trim
  • 15Flexible Optical I/O
  • 16Sample-Accurate MIDI
  • 17Foot Switch Input
  • 18Expandable
  • 19Separate Main Outs
  • 20Dual Headphone Outputs
  • 21S/PDIF I/O
  • 22Word Clock I/O
  • 23Direct Digital Synthesis
  • 24SMPTE Time Code In/Out
  • 25DC-Coupled TRS Outputs
  • 26CueMix FX Cross-Platform Mixing Software
  • 27Universal Compatibility
  • 28AudioDesk
  • 29Plug and Play
  • 30Front-Panel Volume Control
  • 31Metering
  • 32Auto-Switching Power

The MOTU 828x Professional 28x30 Audio Interface with Thunderbolt Technology is a 1RU 19" rackmountable digital audio interface that can connect to your 32- or 64-bit Mac or PC computer over Thunderbolt 1, Thunderbolt 2, or USB 2.0 (compatible with USB 3.0 ports). Up to six Thunderbolt devices such as displays and hard drives can be daisy chained together with the audio interface at the end of the chain.

The interface offers eight channels of 192 kHz analog recording and playback, combined with 16 channels of ADAT optical digital I/O (8 channels at 96 kHz), stereo S/PDIF, MIDI I/O, word clock, two headphone jacks, and stereo XLR main outs. Equally suited for the studio and stage, the interface can also function without a computer connection as a standalone mixer with effects such as reverb, EQ, and classic compression.

Two front panel microphone/guitar inputs feature high-quality preamps, plus a V-Limit hardware limiter for overload protection. Additional protection is available via MOTU's Soft Clip function. Each microphone input is equipped with individually switchable 48V phantom power and a 20 dB pad. Each microphone input also has a rear panel send that allows for inserting outboard gear before the analog to digital conversion.

An additional 8 balanced analog inputs enable connection to most studio gear, including microphones, guitars, synthesizers, keyboards, drum machines, and effects processors. In turn, these can all be recorded, monitored, routed and processed using the professional onboard CueMix FX digital mixer, with minimal latency and processor strain on the computer.

Additionally, the interface includes a built-in chromatic tuner and audio analysis tools such as a Fast Fourier Transform function, spectrogram, and X-Y phase alignment plot. The mixer can be remotely controlled using an iPad and TouchOSC software (sold separately). The interface includes a license for AudioDesk 3 digital workstation software for Mac OS X.

Thunderbolt Connectivity

Enables high-speed low-latency connection between the audio interface and the computer using Thunderbolt 1 or Thunderbolt 2

USB Connection

Provides a USB 2.0 connection compatible with USB 2.0 or USB 3.0 ports


Provides 28 inputs and 30 outputs distinct channels for microphone inputs, S/PDIF I/O, headphone out, and main outs

CueMix FX

Provides flexible 28 input/16 bus mixer with onboard DSP effects such as reverb with sends/returns, as well as EQ and compression on every input and output

Front-Panel Control

Enables access to every setting on the interface

Standalone Operation

Allow you to use the interface without a computer for effects and signal routing at a live gig

Multiple CueMix FX Mixes

Enables you to create up to eight different monitor mixes for the main outs, headphones, or other output pairs

Flexible Mic/Guitar Inputs with Preamps

Offers two front panel combo jacks provide hi-Z 1/4" guitar input or XLR mic input with phantom power, pad, and gain control

Mic/Guitar Instrument Sends

Enables adding an outboard EQ, preamp, reverb, or other processor to the two mic/guitar inputs before the signal is converted into the digital domain

Instrument Tuner

Provides real-time tuning of inputs with an accuracy of one-tenth of a cent

V-Limit Overload Protection

Prevents digital clipping and distortion from overloaded signal levels up to +12 dB over zero

Analog I/O

Provides eight inputs and outputs on balanced/unbalanced 1/4" TRS jacks that can be converted at 24-bit 192 kHz resolution

Precision Digital Trim

Provides digitally controlled trim adjustments in 1 dB increments that can be saved and recalled

Flexible Optical I/O

Offers 16 channels of ADAT lightpipe, 8 channels of SMUX (96 kHz), or two pairs of stereo TOSlink

Sample-Accurate MIDI

Enables connection of MIDI controller or sound module without the need for a separate MIDI interface

Foot Switch Input

Enables connection of a standard foot pedal switch (sold separately) for hands-free punch in and out during recording, or to be mapped to any keystroke function


Connect multiple interfaces together to expand system I/O

Separate Main Outs

Provides dedicated XLR main outputs for connecting to studio monitors, as well as additional balanced TRS monitors for connecting to secondary monitors. Multiple monitor output pairs can be controlled with the front panel main output knob or through software

Dual Headphone Outputs

Provides one assignable headphone output for a submix and one headphone output that always correlates the main output


Provides 24-bit RCA/SPDIF in/out at up to 96 kHz

Word Clock I/O

Resolves to external word clock sources at sample rates up to 192 kHz, and outputs work clock at current rate or 1x rate when operating at 2x or 4x setting

Direct Digital Synthesis

Produces low jitter by phase locking internal clock source, even when resolved to an external clock via SMPTE time code

SMPTE Time Code In/Out

Provides dedicated Longitudinal Time Code (LTC) in and output to resolve time code with fast lockup times and sub-frame accuracy

DC-Coupled TRS Outputs

Using Volta interface (sold separately) to manipulate and sequence voltage-controlled modular synthesizer from host DAW

CueMix FX Cross-Platform Mixing Software

Enables onscreen graphic mix with an instrument tuner and audio analysis tools including real-time FFT display, spectrogram waterfall display, oscilloscope, X-Y plot and linear or polar phase analysis

Universal Compatibility

Works with both 32- and 64-bit drivers for Mac OS X and Windows 8/7/Vista


Includes digital audio workstation software for Mac with recording, mixing, editing, real time 32-bit effects processing and sample-accurate sync

Plug and Play

Connect to your Mac or PC with Thunderbolt 1, Thunderbolt 2, or USB 2.0 (USB 3.0 port compatible)

Front-Panel Volume Control

Controls stereo, quad 6.1, 7.1, or user-defined surround monitoring configurations


Provides LED panel meters for analog, digital, MIDI I/O, SMPTE sync, and lock LEDs

Auto-Switching Power

Enables international 100 to 240 VAC, 50 to 60 Hz autoswitching power supply
UPC: 839128005846

MOTU 828x Specs

Form FactorRackmount
Display1 x LCD
12 x Multi-Segment LED Meter
Channels of I/O28 Input / 30 Output at 48 kHz
20 Input / 22 Output at 96 kHz
10 Input / 10 Output at 192 kHz
Max Sample Rate/Resolution192 kHz / 24-Bit
Number of Mic Preamps2
Analog Audio I/O2 x Combo XLR-1/4" TRS Mic Input
8 x 1/4" TRS Balanced Line Input
2 x XLR 3-Pin Balanced Monitor Output
8 x 1/4" TRS Balanced Line Output
2 x 1/4" TRS Headphone Output
2 x 1/4" TRS Balanced Output
Phantom PowerNone
Digital Audio I/O2 x TOSLINK Optical ADAT / S/PDIF Input (S/MUX Support)
2 x TOSLINK Optical ADAT / S/PDIF Output (S/MUX Support)
1 x RCA Coaxial S/PDIF Input
1 x RCA Coaxial S/PDIF Output
Host Connection / USB1 x Thunderbolt/MDP (Thunderbolt 2)
1 x USB Type-B (USB 2.0)
Sync I/O1 x 1/4" TS LTC/SMPTE Input
1 x 1/4" TS LTC/SMPTE Output
1 x BNC Word Clock Input
1 x BNC Word Clock Output
Other I/O1 x 1/4" Footswitch Input
Wireless ConnectivityNone
Memory Card SlotNone
Digital Audio
Sample Rates44.1 / 48 / 88.2 / 96 / 176.4 / 192 kHz
Bit Depths24-Bit
OS CompatibilitymacOS 10.6 or Later
Windows 8
Windows 7
Windows Vista
Included SoftwareNone
Processor RequirementMac:
1 GHz Intel Pentium
RAM Requirements1 GB, 2 GB Recommended
Storage Requirements250 GB
Required HardwareAvailable Thunderbolt Port, USB 2.0 Port, or USB 3.0 / 3.1 Gen 1 Port
USB Cable (Included)
Thunderbolt Cable (Not Included)
Power RequirementsAC/DC Power Adapter (Included)
AC Input Power100 to 240 VAC, 50 / 60 Hz
Power Consumption20 W
Rackmount Size1 RU
Dimensions19 x 7 x 1.75" / 48.26 x 17.78 x 4.45 cm
Packaging Info
Package Weight8.05 lb
Box Dimensions (LxWxH)23.6 x 11.4 x 5.5"
See any errors on this page? Let us know


What is the dynamic range of the MOTU 828x? A ...

What is the dynamic range of the MOTU 828x? A somewhat common spec in other comparable devices.
Asked by: Alvin
MOTU does not provide that spec.
Answered by: Anonymous
Date published: 2021-03-02
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