First, there was the Monster. Then the Monster 2. Now there’s the Monster X. As revolutionary as it’s predecessors, the new Monster X Electronic Speed Controller (ESC) takes Castle’s legendary “monster” performance to a whole new level. The waterproof* Monster X is capable of 2S LiPo up to a maximum of 6S LiPo and is the legendary “power up” for 1/8th scale buggies, truggies and on-road vehicles as well as 1/10th scale monster trucks and R/C monstrosities weighing up to 15 lbs.

EXtreme Power • EXtreme Control • EXtreme Fun!
The new Monster X provides even more extreme performance than the Monster 2. Most notable is the addition of a new, programmable Auxiliary Wire that allows users to make “on-the-go” adjustments to several settings, such as torque control and max throttle. The new Auxiliary Wire allows users to fine-tune the performance of their Monster X ESC right from the transmitter using an auxiliary channel on the receiver. The AUX wire function is disabled by default but is programmable via Castle Link. Once the user has programmed the functionality of the AUX wire, that setting can then be adjusted on-the-go from a compatible transmitter. The Monster X also features updated Audible Alerts that will notify drivers of possible issues with their calibrations and error conditions to help diagnose problems in the field.

Sensored Motor Capable
The new Monster X can also be configured to run sensored brushless motors with the purchase of an optional Sensor Harness from Castle Creations. This sensored-motor capability opens up a whole new segment of R/C enthusiasts who will now get to experience (or see the rooster tails) from a Castle Monster X-equipped racer, rock racer or rock crawler. One of our Monster X Beta testers summed up his experience, saying “Another race weekend in the books. Once again, in sensored mode, the ESC (Monster X) performed flawlessly. Great power and smooth transition from sensored to non-sensored.”

EXtreme Power
The new Monster X is capable of running from 2S to a maximum of 6S LiPo power, but now features an improved heavy-duty adjustable Battery Eliminator Circuit (BEC) to provide plenty of power for today’s power hungry servos. The Monster X BEC voltage is adjustable from 5.5V, 6.0V, 7.5V and 8.0V while output is rated at 4.5 AMP continuous and 8 AMP peak. The Monster X also comes standard with a highly efficient, 30mm ESC cooling fan.

Monster X Data Logging
Also new to the Monster X is the ability to capture and record performance data from your last couple of runs, commonly referred to as data logging. This data can be downloaded via the upcoming Castle Quick Connect Duo (sold separately) that allows the user access to both wires into the single Castle Link connection. The user can then analyze this data and make adjustments to the ESC to maximize both performance and battery life.

Telemetry Ready (Compatibility Coming Soon for Futaba T4PX Transmitters!)
The new Monster X is telemetry ready, which means owners of Futaba T4PX Transmitters will be able to purchase the Castle Creations S.BUS Telemetry Link when it is released. Real-time data such as ESC temperature, voltages and RPM can be monitored to ensure performance advantages and spare you the “unknown” parameters that all R/C enthusiasts experience at some point. Telemetry data provides another level of protection, can increase your “tuning awareness” and in turn, let you have more time doing what you love to do – burn rubber and throw dirt!

Features:
Input Voltage range 2S-6S
8A Adjustable BEC (5.25V-8.0V)
Waterproof design.
Removable 30MM cooling fan.
Convenient transmitter programming for six common adjustable settings.
Easily program and update ESC with use of Castle Link USB (coupon included for free USB with purchase) and freely downloadable Castle-Link Windows™ program.
Data Logging capable
Telemetry Ready
Auxiliary Wire Functionality allows for “on-the-fly” adjustments such as Max Power and Max Brake.
Audible Alerts that will notify you of possible issues with calibrations and error conditions.
Designed and manufactured in Olathe, Kansas and is backed by our 1-year warranty.

Specifications:
Input Voltage Range:
MIN: 2S LiPo
MAX: 6S LiPo (25.2V)
BEC Specifications: Adjustable: 5.5V, 6.0V, 7.5V. or 8.0V (8A Peak), default 5.5V
Operating Environment: Waterproof* design allows for use in nearly any environment.
Brake: Proportional
Reversible: Yes, but may be disabled for racing.
On/Off Switch: Yes
Cooling Fan: Yes, factory equipped (30mm), fully removable** (see Product Use Statements below)
Size: Length: 2.09" (53mm)
Width: 1.93" (49mm)
Height: 1.44" (36.4mm)
Weight (with no battery connector): 3.92 oz. (111.g)
Connectors: 6.5mm female bullets for motor connection.
Items Needed for Operation: Battery Connector required, 6.5mm Castle Connectors are recommended.
Product Use Statements:
*Although Mamba Monster X and Castle brushless motors are waterproof, they are not intended for operation while completely submerged in liquid. They can corrode when exposed to corrosive materials, such as salt water. Always rinse the ESC and motor with clean water after exposure to corrosives or dirt. While the motor and controller may be waterproof, we suggest users confirm that the rest of their vehicle, including the batteries, servos, radio and chassis are also waterproof before exposing them to liquids of any kind.
**The cooling fan must be removed prior to driving in wet conditions. It is not waterproof.
Application Guidelines: Intended for up to 6S (25.2 Volt) operation in vehicles weighing less than 15 lbs, with batteries, ready-to-run.
Not recommended for use in high speed 1/8th and larger applications (IE Arrma Infraction and Limitless, Traxxas XO-1)
Recommended Motors: Castle 1512 1800/2650Kv: Max Cells: 4S Lipo or 12 NiMH
Castle 1515 2200Kv: Max Cells: 6S Lipo or 16 NiMH
Max. Recommended Vehicle Weight: Less than 15 lbs, with batteries, ready-to-run with 2200kv motor; no more than 9 lbs with 1800/2650kv motor
Programmability: Fully programmable Castle feature set using Castle Link USB adapter (coupon for free Link included) and freely downloadable Castle Link Windows software, or the Castle Link iOS or Android App and a B-LINK Bluetooth Adapter (sold separately).
Telemetry Link Capable: Yes