[SOLVED!] MOTU M2 Vs. M4: Finding The Finest


Indeed, the M series of Mark Of The Unicorn (MOTU) is kind of young compared to its contemporaries on the well-saturated market. However, despite the late introduction, models in the M series have achieved considerable success and attracted a lot of attention from the community. For instance, quite a few people who seek budget-friendly audio interfaces include M2 and M4 in their shortlist. If you also want to know which model comes out on top in MOTU M2 vs. M4, you should find my article useful.

Specifications Of The Interfaces 





Size ( L x W x H)

4.25 x 7.5 x  1.75 inches

4.25 x 8.25 x  1.75 inches

1.35 pounds

1.55 pounds





2 x XLR ¼-inch combo (mic/line/Hi-Z)

2 x XLR ¼-inch TRS (mic/line/Hi-Z) and 2 x ¼-inch (line)


2 x ¼-inch TRS (DC coupled) and 1 x Dual RCA Stereo

2 x ¼-inch TRS (DC coupled, monitor), 2 x ¼-inch TRS (DC coupled, line), 1 x Dual RCA Stereo (monitor) and 1 x Dual RCA Stereo (line)


1 x ¼-inch

1 x ¼-inch




MOTU M2 Vs. M4: A Comparison 


Between the two models, M4 is the bigger (4.25 x 7.5 x  1.75 inches vs. 4.25 x 8.25 x  1.75 inches) and heavier one (1.35 pounds vs. 1.55 pounds). That being said, both interfaces by all accounts feature excellent handling and everyone can manipulate them with relative ease. In addition, since M2 and M4 incorporate metal housing, they won’t get damaged easily even if you handle them in a rough manner. Of course, it’s a good idea to take good care of your equipment unless you have no issues dropping big bucks on replacements.

Verdict: Draw.


For your information, the differences in inputs and outputs mean M4 holds an edge over M2 in terms of connectivity. While M2 sports 2 x XLR ¼-inch combo (mic/line/Hi-Z) for inputs, M4 boasts 2 x XLR ¼-inch TRS (mic/line/Hi-Z) and 2 x ¼-inch (line). In the case of outputs, M2 possesses 2 x ¼-inch TRS (DC coupled) and 1 x Dual RCA Stereo while M4 integrates 2 x ¼-inch TRS (DC coupled, monitor), 2 x ¼-inch TRS (DC coupled, line), 1 x Dual RCA Stereo (monitor) and 1 x Dual RCA Stereo (line). M2 and M4 resemble each other once it comes to headphones though (1 x ¼-inch) and they support computers running recent Windows/macOS versions.

Usually, those who own sophisticated setups and desire a flexible interface favor M4 in MOTU M2 vs. M4. Still, it’s important to point out that you need more time to get M4 up and running compared to M2.

Verdict: M4 is the winner.


For the sake of convenience, M2 and M4 include color LCDs as well as associated level meters. Because of that, regardless of your choice in the end, you should have an easy time monitoring inputs and outputs. Noteworthily, both interfaces come alongside Ableton Live Lite and MOTU Performer Lite in addition to tons of samples and loops. Since you don’t have to bother paying for software, you can allocate extra funds to more pressing matters.

Nonetheless, there is one thing that sets M2 and M4 apart in the course of operation: blend knob. Unlike M2, M4 is accompanied by a dedicated blend knob that helps people maintain the balance between live inputs and computer mix. You require an interface that permits you to monitor the software-output regulation and apply modifications in times of need? Then it’s strongly recommended that you place an order for MOTU M4 at the earliest opportunity,

Verdict: M4 is the winner.


Introduced at reasonable prices, M2 and M4 prove to be cost-effective interfaces and match a wide range of shopping budgets. However, between the two models, M2 is usually the cheaper one ($199.95 vs. $269.95) which is understandable if you consider their capabilities. In the case that you can spend around $300 for your interface, feel free to pick up M4. On the other hand, if you wish to save as much money as possible, M2 is going to be your best bet at the moment.

Verdict: M2 is the winner.


Different people expected different things from their interfaces so while some think highly of M2, others praise  M4. Hence, regarding MOTU M2 vs. M4, it’s up to each other to assess their needs and requirements then determine which model suits them most.

If all you want is a functional and affordable interface then it’s suggested that you grab M2. Nonetheless, if you find the performance of  M2 to be insufficient, don’t hesitate to invest in M4. Nowadays, various retailers have M2 and  M4 in stock so availability is superb but you still have to exercise caution. Stick to big names (Amazon, Sweetwater, etc) and steer clear of unbelievable deals.