Experience the ultimate in low-speed control and dead-silent operation. The Silent Assassin 70amp ESC is engineered specifically for competition crawlers and trail trucks, utilizing sinusoidal startup technology to eliminate the high-pitched whine common in outrunner motors.

Key Features

• Dead Silent Operation: Advanced firmware makes your outrunner or inrunner motor completely silent.

• Superior Control: Features RPM Lock and Sinusoidal startup for unmatched low-speed technical crawling.

• Firmware: Now available with ESCape32 firmware. Combine with the optional WiFi Programmer to tune settings, update firmware, or add custom startup tones directly from your phone.

• Built-to-Last: Every unit comes conformal coated for moisture resistance and features an integrated heat sink for thermal protection during demanding summer runs.

• Direct Power Ready: Includes two JST power leads specifically for direct-power components, with built-in protection to prevent frying your high-voltage servos.

Technical Specifications

• Current Rating: 70 Amp

• Input Voltage: 3S - 4S LiPo (Auto-detects cell count)

• Internal BEC: 8.4V (5 Amp)

• Weight Limit: Up to 8 lbs (with appropriate gearing and motor KV)

• Motor Limits (4S): Up to 2700kv (10-pole) / 2500kv (14-pole)

• Motor Limits (3S): Up to 2500kv (14-pole)

• Battery Plug: XT30

• Warranty: 1-year manufacturer warranty (covers defects; excludes water damage or modification).

Important Setup Instructions

Pre-Programming: This ESC ships pre-programmed for a 10-pole 1600KV motor at 8.4V BEC. To request a custom tune: Please email your order number and motor KV to [email protected].

BEC Configuration: The internal BEC is designed for Direct Power Servos and will power your receiver. If you choose to run an External BEC (e.g., Castle Creations), you MUST remove the red wire from the ESC’s receiver plug and heat shrink it to prevent damaging the internal circuitry.