Equipped with the same ESS Sabre32 Ultra™ DAC Technology found in audio interfaces costing thousands, the M4 delivers an astonishing 120 dB Dynamic Range on its main outputs. ESS converters also drive the headphone output, which rivals dedicated headphone amplifiers costing hundreds. Ultra-clean preamp circuits produce a measured -129 dBu EIN on the mic inputs. Capture and monitor your audio with pristine clarity.
Speed
The M4 provides best-in-class speed for monitoring live inputs (mic, guitar or keyboard) through your computer, thanks to MOTU's expertly engineered USB drivers, which deliver class-leading, ultra-low 2.5 ms Round Trip Latency (at 96 kHz with a 32 sample buffer).
Metering
When recording and mixing, nothing is more critical than achieving optimum levels. The M4 is the only audio interface in its class with a full color LCD featuring clear, detailed level meters for all inputs and outputs. Enjoy professional-level volume control and feedback to get your sound just right.
Loopback
The M4 driver provides convenient loopback channels to your host computer, so you can easily combine computer audio with live mics and/or guitar inputs to stream the combined mix to Youtube or your favorite podcasting platform in real time. Streaming and podcasting has never been easier and better-sounding!
| Sample rates | 44.1, 48, 88.2, 96, 176.4, 192 kHz |
| Mic/line/guitar | 4 x XLR/TRS "combo jack" mic/line/Hi-Z guitar inputs Independent preamp gain, 48V phantom power and monitor switch for each input |
| Analog inputs | 2 x 1/4" line in |
| Analog outputs | 4 x 1/4" TRS line out (balanced, DC coupled) 2 x 1/4" TRS stereo headphone with independent volume |
| Computer I/O | 1 x USB-C 2.0 audio class compliant Compatible with USB Type A host (*see power below) USB C-to-C and C-to-A cables included |
| MIDI I/O | 1 x MIDI IN 1 x MIDI OUT 16 MIDI channels to/from computer host |
| Headphones | 2 x 1/4" TRS stereo headphone with independent volume 1 x 3-4 switch for optional monitoring of Line Out 3-4 |
| Phantom power | 4 x individual +48V |
| Front panel | 2 x 1/4" TRS headphone output 1 x potentiometer • monitor vol 2 x potentiometer • phone vol 1 x potentiometer • input monitor mix 4 x potentiometer • mic/line/guitar input gain 11 x switches • (4) 48V, (5) MON, (1) A/B and (1) 3-4 160 x 120 pixel full-colored LCD with input and output level meters |
| Power | Bus-powered through USB* Optional multi-blade international 15V DC power adapter (included) *USB bus power available with USB-C hosts only. For other hosts, use the included DC power adapter. For iOS devices with a Lightning port, an Apple Lightning to USB3 Camera Adapter is required (sold separately). |
| Dimensions and weight | (width x depth x height, enclosure only) 9.21 x 4.75 x 1.8 inches 23.4 x 12.0 x 4.57 cm 2.15 lbs / 0.975 kg |
