Parts/Electric power/Motor & ESC combos/Spektrum RC Firma 2-in-1 40A Brushless Sensorless ESC & SLT Protocol Receiver w/DSC
Spektrum RC Firma 2-in-1 40A Brushless Sensorless ESC & SLT Protocol Receiver w/DSC
Spektrum RC

Spektrum RC Firma 2-in-1 40A Brushless Sensorless ESC & SLT Protocol Receiver w/DSC

Part # SPMXSBER1040G
Where to buy
$74.99
AMain Hobbies
Seen Oct 12, 2026
$74.99Buy
Prices are as last seen at the store; stock is not tracked.

About this part

2-in-1 ESC & Receiver Overview:

Take total control of your small-scale RC experience with the Firma 2-in-1 40A Brushless ESC and SLT Receiver — packing powerful performance, smart tuning, and space-saving design into one compact unit built for both beginners and full-throttle bashers.

About the Firma 2-in-1 40A Brushless ESC and SLT Receiver


Compact Powerhouse Control System

The Firma 2-in-1 40A Brushless ESC and SLT Receiver delivers serious performance in a space-saving design, combining speed control and receiver into one efficient unit. Tuned specifically for small-scale vehicles, it provides smooth, responsive power with DSC (Dynamic Stability Control) for improved handling and control. With 2S and 3S LiPo compatibility and a robust 40A output, this system ensures consistent performance whether you're cruising or pushing your vehicle to its limits.

Smart Performance With PowerGuard

Equipped with PowerGuard, this system lets you easily adjust performance levels to match skill or conditions—right from the vehicle, no extra gear needed. Out of the box on 3S, it runs at moderated 2S-like speeds for extended runtime and better control, making it ideal for learning or younger drivers. When you're ready, unlock full 3S power with the PowerKey and unleash aggressive acceleration and top-end speed for an intense, high-performance driving experience.

Features:

  • 2-in-1 design combines ESC and receiver in one unit
  • Space-saving setup reduces wiring and clutter
  • 40A brushless power delivers strong performance
  • Compatible with 2S and 3S LiPo batteries
  • PowerGuard lets you limit or unleash performance
  • Runs at 2S-style speeds on 3S for longer runtime
  • DSC improves stability and control while driving
  • Tuned firmware optimized for small-scale vehicles

Includes:

  • (1) Firma 2-in-1 40A Brushless Sensorless ESC & SLT Protocol Receiver
  • (1) Manual

Specifications:

Suggested Application 1/16 & 1/14 Scale
Motor Type Sensorless Brushless
Input Voltage 2-3S (7.4-11.1V)
Continuous Current 40A
Burst Current -
Dimensions (LxWxH) 1.73x1.53x1.31in (44x39x33mm)
Weight 1.55oz (44g)
Motor Limits -
BEC Voltage -
BEC Continuous Current -
BEC Peak Current -
Motor Connector 3.5mm Bullets
Battery Connector IC2
Motor Wire -
Battery Wire -
Programmable Yes
CA Residents Prop 65 Warning WARNING: This product can expose you to chemicals including Di(2-ethylhexyl)phthalate (DEHP), which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov Details...

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