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Spektrum Firma 120A Brushless Smart Marine ESC, 3S-4S (Spektrum XME1120 | SPMXME1120)

Model: Spektrum XME1120
Dist. #: SPMXME1120   SKU: SPMXME1120

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Price:  $134.99

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Updated on Aug 29, 2025 04:51:52 PM

Firma 120A Brushless Smart Marine ESC, 3S-4S...








Product Functions






  • Smart all-in-one telemetry

  • Quick, powerful 32-bit ARM M4 processor

  • 120 Amp Constant current, perfect for requiring high voltage setups

  • Up to 6S (22.2V) input voltage

  • Integrated In Series Connection with high heat resistant IC5 Connectors

  • No compromise water resistant design

  • Numerous water cooling coats provide adequate heat dispensation

  • Numerous alternatives for easy programs:

  • Button programs

  • Smart ESC Programs Box

  • SmartLink USB Upgrading and Programmer application

  • Multi-point protection:

  • Over-current protection





  • Automatic LiPo low-voltage cutoff

  • Thermal protection

  • Failsafe protection

  • Compact for easy setup in a lot of applications

  • Prepared to set up — no soldering required

  • Rugged plastic case with mounting tabs

  • Aluminum heat sink for high performance

  • Numerous water cooling inlets/outlets

  • High current 6V BEC

  • Firmware updatable through the Smart ESC Programs Box

  • High heat-resistant IC™ ports, in reverse compatible with EC™ ports

  • Limited 1-year service warranty

  • Developed and developed by Spektrum™ engineers, in collaboration with the market's leading ESC producer








Product Introduction


Like every part in the Spektrum™ Smart ecosystem, Firma™ Smart ESCs combine "plug-and-play" simplicity with the capability to communicate with other Smart electronics — together, developing the best-performing RC system for your automobile possible.


Firma Smart ESCs do much more than manage power. They work like a virtual engineer inside your model, supplying a direct path to the crucial operating information you need to reach peak performance. Firma Smart ESCs give you an extra layer of confidence that your electronics are all operating at their best.


With Firma Smart ESCs, you'll be better linked to your automobile than ever before — without installing extra parts that all work separately of each other. You won't need extra wires, modules, or links. A Firma electronic speed control provides a one-wire solution for getting telemetry information such as RPM, temperature, battery voltage and capacity.


Firma ESCs not only collect the information however also send it to your transmitter in real time, rather of only keeping it for after-run study. You're able to change settings as required to boost performance on the go. The Firma Smart single-wire telemetry solution has been evaluated for quality and performance by the best brands in RC. Their verdict? Smart technology is both simpler and superior!








Needed to Complete

  • Spektrum™ Surface Receiver

  • Spektrum Smart Technology LiPo Battery

  • Spektrum Transmitter





What remains in the Box?

  • (1) Spektrum™ Firma™ Smart ESC

  • (1) Spektrum Smart sticker sheet

  • (1) Product Manual








Video Overview






 









WATERPROOF

WATERPROOF

The all-weather, water resistant design of Spektrum™ Firma™ Smart ESCs permits them to perform in almost any terrain under almost any conditions. Firma ESCs keep you going through dust, gravel, snow, and water.


 





EC3™/EC5™ BACKWARDS COMPATIBLE

EC3™/EC5™ BACKWARDS COMPATIBLE

Firma™ ESCs feature IC™ series battery ports. The IC series of ports are developed from the ground up to provide a more solid connection, higher heat resistance, and uncomplicated setup. When used with an IC3™ or IC5™ connector-equipped Spektrum™ Smart battery, the ESC can get and send battery telemetry information. EC3 and EC5 are also compatible with Firma ESCs for basic operation and ESC telemetry.


 









ONE-WIRE TELEMETRY



ONE-WIRE TELEMETRY



ONE-WIRE TELEMETRY

No need to link several wires, sensors, modules, and links. With Firma™ ESCs, simple one-wire telemetry transmits a vast array of information directly to your transmitter in real time, consisting of RPM, voltage, temperature, balance, capacity, and speed.*


*See compatibility chart to learn more.

 








CLEVER TECHNOLOGY BATTERY DATA

SMART TECHNOLOGY BATTERY DATA

When used with a Spektrum™ Smart LiPo battery, your Firma™ ESC provides you with the advantage of battery telemetry that's instantly transferred to your compatible Spektrum radio in real time. On your transmitter screen you'll exist with handy details such as number of cycles, battery percentage, individual cell voltage and more!


 





MULTIPLE PROGRAMS OPTIONS

MULTIPLE PROGRAMMING OPTIONS

Numerous programs alternatives are available. Button programs can be used with nothing more required. Using the Smart Firma™ ESC Programs Box, you can easily change settings at the track to fit driving conditions. An easy-to-use Smart Link USB Upgrading and PC Programmer app is also available.


 







 



FAST, POWERFUL M4 PROCESSOR

FAST, POWERFUL M4 PROCESSOR

The Firma™ ESCs' 32-bit M4 processor produces higher resolution signal input and more precise motor output.




 









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