MOTU 828X Audio Interface
Take full advantage of all that Thunderbolt has to offer. Compatible with Thunderbolt 1 and 2.
Don't have Thunderbolt yet?
Connect to any Mac or PC using High-speed USB 2.0 (compatible with USB 3.0).
28 inputs / 30 outputs (at 44.1/48 kHz)
There's no channel sharing in the 828x; the mic inputs, S/PDIF I/O, headphone out and main outs all operate as separate channels.
Flexible 28 input/16 bus mixer with on-board DSP effects, including reverb with sends/returns, plus EQ and compression on every input and output.
Access any setting in your entire 828x mix directly from the front panel.
Program your mixes at the studio and then bring the 828x to your gig — no computer needed. Need to tweak the mix? Do it on site using the back-lit LCD and front-panel controls.
Multiple CueMix FX mixes
Create different monitor mixes for the main outs, headphones, or any other output pair. Or add send/return loops for outboard gear — with no latency. Up to 8 separate mixes are supported.
Flexible mic/guitar inputs with preamps
Two front panel combo jacks provide hi-Z 1/4” guitar input or XLR mic input with phantom power, pad and plenty of gain.
Mic/guitar instrument sends
Add your favorite outboard EQ, preamp, reverb or other processor to the two mic/guitar inputs, before the signal goes digital.
V-Limit™ overload protection
Mic/guitar input limiter prevents digital clipping and distortion from overloaded signal levels up to +12 dB over zero.
Plentiful analog I/O
Eight 24-bit 192kHz analog inputs and outputs on balanced/unbalanced 1/4" TRS jacks.
Precision Digital Trim™
Digitally controlled analog trim on all analog inputs (mic/guitar inputs + quarter-inch TRS inputs) provides accurate adjustments in 1 dB increments. Fine-tune the balance of your analog inputs and then save/recall trim configurations.
Flexible optical I/O
16 channels of ADAT lightpipe, 8 channels of SMUX (96 kHz) or two pairs of stereo TOSLink. Mix and match formats between the two banks.
Connect a MIDI controller and/or sound module with no separate interface needed. MIDI I/O is sample-accurate with supporting software.
Foot switch input
Connect a standard foot pedal switch (sold separately) for hands-free punch-in and punch-out while recording. Or map the pedal to any keystroke function in your host software.
Add additional interfaces for more I/O as your needs grow.
Separate main outs
Connect your primary powered studio monitors to separate XLR main outs. Add additional monitor pairs connected to balanced TRS outputs. Control volume of all monitor pairs with the front panel MAIN VOL knob or your software.
Two headphone outs
One phone jack is assignable: operate as an independent output or mirror any other output pair. The 2nd phone jack always mirrors the main outs. Both have front-panel volume control.
Independent 24-bit RCA S/PDIF in/out at sample rates up to 96 kHz.
Word clock I/O
Resolve to external word clock sources at sample rates up to 192 kHz. Output word clock that matches current rate, or corresponding 1x rate when operating at 2x or 4x.
Direct Digital Synthesis™ (DDS)
DSP-driven phase lock engine and internal clock source produces imperceptibly low jitter characteristics (below the noise floor), even when the 828x is resolved to an external clock source via SMPTE time code.
SMPTE time code in/out
Dedicated Longitudinal TIme Code (LTC) input and output. Resolve to time code with fast lockup times and sub-frame accuracy.
DC-coupled TRS outputs
Use the 828x with Volta™ (sold separately) to manipulate and sequence voltage-controlled modular synthesizers from a host DAW.
CueMix™ FX cross-platform mixing software
Attractive on-screen graphic mixing 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.
Includes 32- and 64-bit native drivers for Mac OS X and Windows 8/7/Vista, including ASIO, WDM, Wave, Core Audio, and Core MIDI. Supports all popular Mac and Windows audio software.
Full-featured workstation software for Mac with recording, editing, mixing, real-time 32-bit effects processing and sample-accurate sync.
Plug and play operation
Connect to your Mac or PC with Thunderbolt (1 or 2 compatible) or high-speed USB 2.0 (3.0 compatible).
Front panel volume control
Control stereo, Quad, 6.1, 7.1 or user-defined surround monitoring configurations.
Front panel meters or activity LEDs for all analog, digital and MIDI I/O, plus SMPTE sync tach and lock LEDs.
International 100-240V, 50-60 Hz autoswitching power supply.
Chassis dimensions and measurements
Excluding rack ears and front and back panel knobs and connectors: 19 × 7 × 1.75 inches (48.26 × 17.78 × 4.45 cm). Knobs and connectors extend up to 0.5 inch (1.27 cm) from front and back panels, adding 1 inch (2.54 cm) to depth. With rack ears attached, fits standard 19 inch (48.26 cm) rack at 1U high.
Sample rates 44.1, 48, 88.2, 96, 176.4, 192 kHz
Analog inputs 2 x XLR/TRS combo-style mic/guitar inputs
8 x 1/4" TRS line inputs (balanced/unbalanced)
Analog outputs 2 x XLR balanced main out
8 x 1/4" balanced TRS line out
2 x 1/4" TRS stereo headphone
Digital I/O 16 channels of ADAT optical at 1x sample rates
8 channels of SMUX optical at 2x sample rates
2-channel TOSlink (optical S/PDIF) up to 96 kHz
2-channel RCA S/PDIF up to 96 kHz
Total I/O 28 inputs and 30 outputs at 1x sample rates
20 inputs and 22 outputs at 2x sample rates
10 inputs and 10 outputs at 4x sample rates
Computer I/O 1 x Thunderbolt (compatible with 1 and 2)
1 x USB 2.0 (compatible with 3.0)
Sync I/O 1 x SMPTE time code in (LTC)
1 x SMPTE time code out (LTC)
1 x word clock in
1 x word clock out
Headphone output 1 x 1/4" TRS stereo phone (assignable)
1 x 1/4" TRS stereo phone (mirrors main outs)
Phantom power 2 x individual +48V
Front panel 2 x XLR/TRS combo mic/guitar in
2 x 1/4" TRS phone
2 x digital rotary encoders • phone/main volume
2 x digital rotary encoders • mic trim
4 x switches • Pad and 48V Phantom
4 x digital rotary encoders for LCD control
2 x 16 character LCD
8 x 4-segment ladder LEDs • 1/4-inch analog in
8 x activity LED • 1/4-inch analog out
2 x 4-segment ladder LEDs • RCA S/PDIF in
2 x activity LED • RCA S/PDIF out
2 x 10-segment LEDs • mic in with V-Limit
2 x 5-segment ladder LEDs • main outs
6 x LED • sample rate indicator
1 x LED • LOCK/TACH indicator
2 x activity LEDs • optical bank A/B
1 x activity LED • MIDI in/out
1 x AC power switch
Power International 100-240V autoswitching supply
50-60 Hz • 20 Watts
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