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MOTU M4 Audio Interface

M4 4-in / 4-out USB Audio Interface with Studio-Quality Sound, Best-in-Class Metering, and Best-in-Class Speed.


(10 reviews)


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Discounted Price $219.95
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Discounted Price $219.95
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The M4 is a 4-in/4-out USB-C audio interface for Mac, Windows, and iOS that offers best-in-class audio quality, best-in-class speed (ultra-low latency) and best-in-class metering with a full-color LCD. Record vocals, instruments, or other audio sources quickly and easily. The M4 includes MOTU Performer Lite and Ableton Live Lite production software, 100+ instruments, dozens of plug-ins, and over 6 GB of loops and samples to start making music right away. Additional features include two mic/line/hi-Z instrument XLR combo inputs, individual preamp gain and 48V phantom power, two balanced 1/4-inch line inputs, one-touch hardware monitoring for all inputs, support for stereo monitoring, four balanced 1/4-inch DC-coupled outputs, four unbalanced RCA outputs (mirrored), mix knob for balancing live input with computer playback, ESS-driven headphone output with independent volume control, MIDI in/out, driver "loopback" channels for live-streaming and podcasting, and USB bus power with power switch (USB cable included).

Best-in-Class Audio Quality
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 line 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.

Best-in-Class 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 (32 sample buffer at 96 kHz).

Best-in-Class 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 160x120 pixel LCD featuring clear, detailed level meters for all inputs and outputs. Enjoy professional-level volume control and feedback to get your sound just right.

  • 4-in / 4-out USB audio interface with studio-quality sound
  • Best-in-class audio quality driven by ESS Sabre32 Ultra DAC Technology
  • Best-in-class speed (ultra-low latency) for host software processing
  • Best-in-class metering for all inputs/outputs with a full-color LCD
  • 2 x mic/line/hi-Z guitar inputs on combo XLR/TRS
  • Individual preamp gain and 48V phantom power for each input
  • 2 x balanced 1/4-inch line inputs
  • Hardware (direct) monitoring for each input (mono or stereo for inputs 1-2, stereo for inputs 3-4)
  • Monitor mix knob to control balance between live inputs and computer playback
  • Measured -129 dB EIN on mic inputs
  • 4 x balanced, DC-coupled 1/4-inch TRS outputs
  • Measured 120 dB dynamic range on outputs
  • 4 x RCA (unbalanced) analog out (mirrored)
  • 1 x headphone out (driven by ESS converters) with independent volume control
  • MIDI in/out
  • Support for 44.1 to _192 kHz sample rates
  • USB audio class compliant for plug-and-play operation on Mac (no driver required)
  • Windows driver with 2.5 ms Round Trip Latency (32 sample buffer at 96 kHz)
  • Mac driver (optional, for 2.5 ms [email protected]/96 kHz and loopback feature)
  • iOS compatible (USB audio class compliant)
  • Driver loopback for capturing host output, live streaming and podcasting
  • Bus powered USB-C (compatible with USB Type A) with power switch (USB cable included)
  • Rugged metal construction
  • Workstation software included (MOTU Performer Lite 10 and Ableton Live Lite 10)
  • 100+ instruments (in Performer Lite)
  • Over 6 GB of included free loops, samples and one-shots from industry leading libraries
  • Kensington security slot

Get your M4 Audio Interface today at the guaranteed lowest price from Sam Ash with our 45-day return and 60-day price protection policy.

Things You Will Get:

  • USB Audio Interface



Amazing product as usual Motu does it again!!! By the way Sam Ash Staff is always a pleasure to buy from them. Thank you for your help guys.



Maybe . Not sure yet.


I'm lucky to have been able to obtain one of these. However, I had issues straight out of the box. The phantom power did not work. Luckily, I have outboard analog gear and so was able to use it. I contacted MOTU the next day. They said they would ship a replacement the next day and I'd receive it by the weekend. It took a few days longer. Finally got the replacement. It worked properly. However, it wasn't a new item and had a fairly sizeable dent. I noticed a smaller dent as well and other tiny scratches. I was pretty upset. I purchased a new item, not open box or refurbished. What upset me the most is it was never indicated that they'd be sending a refurbished unit that might have cosmetic imperfections. It didn't sit well with me that they would try to pass this off as a New item. Fortunately I notice very fine details and wasn't fooled. I contacted MOTU again. They apologized and are sending me another replacement. We'll see how that goes. The one thing I can say is MOTU is responsive, but still not happy about the unit I was sent. Fingers crossed. Hoping I receive a brand new interface that works. I'm hoping they make this right because it is great interface at a great price. The attached photos are of the replacement unit. The one purchased from Sam Ash was in brand new condition, with phantom power not working.



High Quality- No Hassle


Amazing interface. Plug and play and audio quality is incredible. I have been running it on Windows 10 with no issues so far. I had a different interface that would constantly cut out and the audio quality would be horrible, so this MOTU M4 has made everything so much better. Only downside...is trying to find one



Modern interface for the modern musician


I've had a PCI audio interface for years that has always worked great, but I couldn't really do mobile/on-the-go recording because I was bound to my desktop computer. I wanted to get a new interface that would give me more versatility, and the MOTU M4 is just that. It connects to my MacBook Pro via USB-C, and because it's bus-powered I don't have to worry about extra power cables. The preamps are really quiet and clean, latency is zero because you can monitor directly from the interface, the LCD screen lets you precisely watch the levels, and AD/DA is super fast. Very impressed and pleased with how well the M4 has been performing so far -- would 100% recommend!



Excellent interface for Windows, Mac and IOS.


Excellent interface for Windows, Mac and IOS. Easy to use love the two separate buttons for phantom power. Has loop back feature, 32bit/192kHz recording. LCD display is usable and colorful.



Noisy thru USB-C


Does what it is supposed to do. However, I get lots of noise via the computer connection when I use this to run signals through Mainstage via my mac. I will contact MOTU about this, but the noise seems to be only associated with the USB-C connection.



SamAsh kicks for having the hard to find products


I searched for this product all over LA and called Sam Ash. They looked intensively to see if they had it in stock. The customer service online found one at their store and secured the produce and gave me an additional 10%. Great customer service and got my product shipped very quickly. I will call SamAsh for all my future music products.



My favorite part is the display on the interface.


A good interface at a good price. I went for this one because it has a display for levels on the interface itself which not many in this class have. 4 in and 4 out with midi, but really there are several more options for output (up to 10 if you include the headphones jack). Powered by USB. Make sure you download the Windows driver from Motu for problem free operation. It's awesome how far these little interfaces have come along in stability.



Unmatched quality


Upgraded from my ur28m What a difference in sonic quality. I don't think you can do better for the price.



Great Interface, Great Price


I am extremely happy with my M4 Interface. I had an 896 that retired on me. I rarely use more than 4 tracks so the M4 works just fine for me and the price was quite reasonable and the sales people were willing to negotiate. I shopped around...got the best price from San Ash.



M4 Audio Interface

4.7 10


Interface Type USB
Mic Preamps 2
A/D Resolution 44.1 to 192 kHz sample rates
Analog Inputs 2 x 1/4" (Line In)
Analog Outputs
  • 4 x 1/4" TRS line out (balanced, DC coupled)
  • 4 x RCA (unbalanced) analog out (mirrored)
  • 1 x 1/4" TRS Stereo Headphone
  • Headphone Outputs 1 x 1/4"
    Wordclock No
    Bus Powered Yes
    MIDI I/O Yes
    Ethernet Cat5 No
    Phantom Power Yes
    Mac OS Requirements macOS 10.11 or later
    PC OS Requirements Windows 7 or later
    Dimensions 8.25 x 4.25 x 1.75 inches (WxDxH)
    Weight 1.55 lbs
    Series M Series
    Model 3140
    Warranty Info:

    The manufacturer's warranty covers parts for 90 days and labor for 90 days from date of purchase. The warranty excludes damage from misuse, abuse, and contains other exclusions.

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