Overview
The Spektrum iXSR+ 12-Channel DSMR+ Transmitter with SR515 Receiver represents the pinnacle of RC surface radio technology for accomplished drivers who demand the very best in control, connectivity and customisation. This powerful, intelligent and feature-packed transmitter is purpose-built for high-performance RC vehicles, whether you're piloting a competitive off-road buggy, a precision-tuned touring car, or a high-speed RC drift car. If you're serious about RC driving in the UK and want a radio system that can grow with your skills and match the capabilities of your most advanced models, the iXSR+ is your answer.
The Spektrum iXSR+ combines cutting-edge Android technology with proven DSMR+ 2.4GHz frequency-agile transmission to deliver exceptional range, response and reliability, particularly in crowded and noisy 2.4GHz environments. Its huge 4.5-inch colour touchscreen interface cold-boots in less than 30 seconds and features a fast, intuitive Android-powered operating system that puts all your model's controls at your fingertips. This is not just a radio—it's a complete control platform that integrates seamlessly with the latest Spektrum Smart Technology ecosystem, allowing real-time telemetry monitoring, advanced mixing capabilities and comprehensive vehicle tuning all from one device.
What sets the iXSR+ apart in the competitive RC transmitter market is its blend of professional-grade functionality with user-friendly design. With 250 model memory slots, 12 fully programmable channels, customisable drag race launch control, AVC (Active Vehicle Control) compatibility, and support for both DRIVE and MS6X technologies, this is a radio designed for serious competitors and enthusiasts who refuse to compromise on performance. Everything needed to get started is included in the box, making it a complete ready-to-use RC radio system straight out of the packaging.
Key Features
- 12-Channel Capability — Twelve fully proportional channels provide exceptional flexibility for controlling auxiliary systems such as winches, lights, advanced suspension adjustments and more, giving you complete command over every aspect of your RC vehicle's operation.
- Frequency-Agile DSMR+ 2.4GHz Technology — Spektrum's exclusive frequency-agile DSMR+ (Digital Spectrum Modulation Radio Plus) technology operates across the 2.4GHz band and automatically avoids interference, ensuring your signal remains clear and responsive even in heavily populated RC environments or near WiFi networks, making it suitable for any surface application including boats.
- 4.5-Inch Full-Colour Android Touchscreen — The large, high-resolution colour display cold-boots from completely off in less than 30 seconds and wakes from sleep mode in one second or less, providing instant access to all radio programming with crisp, clear information and the ability to graph expo curves with greater accuracy than traditional screen interfaces.
- Dual Protocol Compatibility (SLT Compatible) — This radio works with both DSMR+ and DSMR receivers, providing backward compatibility with most Spektrum receivers whilst supporting the latest marine-specific Spektrum technology, meaning you can use your existing receiver collection or upgrade to new receivers as needed.
- Contactless Hall-Effect Sensors — The steering and throttle mechanisms use advanced hall-effect sensors rather than traditional potentiometers, offering ultra-smooth, precise control with virtually no maintenance required, dramatically increasing accuracy and consistency of input throughout the lifespan of the transmitter.
- Spektrum Smart Technology Ready — Out of the box, the iXSR+ supports innovative Spektrum Smart Technology connectivity, providing real-time telemetry data about every component's status, voltage levels, signal strength and performance metrics, enabling you to monitor your entire model's electronics system and optimise efficiency.
- Launch Control Mode for Drag Racing — Specifically designed for drag racing and speed run applications, the Launch Control menu allows you to control the duration required to reach full throttle and adjust multiple points in the throttle curve, effectively ramping acceleration to your exact preference so you can focus entirely on steering in a straight line.
- 250-Model Memory Storage — With class-leading model memory capacity, you can store 250 complete model configurations directly on the radio, with the ability to expand further using an SD card, meaning your entire garage of vehicles can be conveniently organised on a single transmitter with full Spektrum Model Match Technology preventing accidental operation with incorrect settings.
- Left-Hand Drive Capable — The transmitter can be configured for both left-hand and right-hand operation with interchangeable door covers and customisable ergonomics, ensuring comfort and natural control regardless of your preferred driving stance.
- AVC, MS6X and DRIVE Compatible — Full compatibility with Spektrum's advanced control systems means you can custom-tune Active Vehicle Control (AVC) receiver systems, utilise MS6X motorcycle stabilisation technology for wheelie control and self-levelling, and work with DRIVE technology for seamless system integration.
- Programmable Vibration and Audio Alerts — Select from multiple vibration and audio alerts for timer alarms, low battery warnings and telemetry functions, with customisable thresholds so you can define exactly when alerts trigger based on voltage levels or specific telemetry data.
- 19 User-Adjustable LED Colours — Brilliant LED accent lights let you personalise your transmitter with any of 19 selectable colours, allowing you to stand out at the track or field whether you're racing day or night.
- 10,500mAh High-Capacity Li-Ion Battery — The integrated lithium-ion battery delivers extended runtime between charges and arrives pre-installed in your transmitter, ready for immediate use with no assembly required.
- USB-C Charging and Connectivity — Charge the internal Li-Ion battery using standard USB-C cables with any modern power adapter, and use the same port for data synchronisation, firmware updates, and connection to PC or laptop for advanced programming.
- Bluetooth and WiFi Connectivity — Connect wirelessly to Bluetooth devices including wireless earbuds and smartphone peripherals for voice alerts and audio feedback, whilst WiFi connectivity enables firmware updates and app integration from the Google Play store.
- 12 Switch/Trim/Knob Programming Options — Twelve physical controls (switches, trims and knobs) can be independently programmed to control any of the 12 channels, providing intuitive access to your most-used functions without diving into menus.
- Advanced Mixing Capabilities — The iXSR+ features advanced mixing functionality including throttle mixes, absolute travel support, emergency brake features, logical operators, combo functions and analog switch support, allowing sophisticated vehicle setups including 4-wheel steering, traction control, ABS and Motor-On-Axle (MOA) configurations.
- SimpleScroll Programming Interface — Navigate menus and change settings with intuitive scrolling and clicking—no complicated button sequences or confusing menu structures, making advanced programming accessible to drivers of all experience levels.
- Sleep Mode for Battery Efficiency — Put the transmitter into sleep mode between runs for instant boot-up and extended battery life, allowing quick resumption of practice or racing without complete shutdown and restart.
Technical Performance
The Spektrum iXSR+ represents a significant engineering achievement in RC radio systems, combining Android-powered computing with battle-tested Spektrum transmission technology. The frequency-agile DSMR+ 2.4GHz system automatically selects the clearest communication channels, making this radio exceptionally reliable in crowded 2.4GHz environments where other systems might suffer interference. The contactless hall-effect sensors in the steering and throttle mechanisms eliminate the reliability issues associated with traditional potentiometers—you get ultra-smooth, wear-free control that maintains accuracy year after year of intensive use. The transmitter itself weighs just 693 grams (1.53 lbs) and measures 159mm long by 133mm wide by 216mm high, making it remarkably compact and lightweight despite its large 4.5-inch display, reducing driver fatigue during extended driving sessions. The 10,500mAh lithium-ion battery provides generous runtime between charges and uses standard USB-C charging for convenience. With 12 fully proportional channels, dual protocol support for backward compatibility with existing Spektrum receivers, and advanced mixing capabilities supporting everything from AVC autonomous vehicle control to MS6X stabilisation systems, this is a professional-grade platform that grows with your skills. The Android operating system ensures that firmware updates bring new features and improvements over time, and the ability to install apps from the Google Play store means new functionality can be added as the Spektrum ecosystem evolves. The 250-model memory storage is unmatched in the industry, allowing you to seamlessly switch between vastly different vehicle types with complete custom tuning saved for each.
What's in the Box
- Spektrum iXSR+ 12-Channel DSMR+ Transmitter
- Spektrum SR515 5-Channel Receiver
- 10,500mAh Li-Ion Battery (Pre-installed)
- Foam Carry Case for transport and storage
- USB-C Charge/Data Cable
- 32° Steering Angle Adapter
- 5° Steering Angle Adapter
- Additional Steering Spring (Stiffer)
- Additional Throttle Spring (Softer)
- Two Left-Hand Steering Door Covers
- Quick Start Guide
Why Choose the Spektrum iXSR+?
The Spektrum iXSR+ is the choice of serious RC drivers and competitors who understand that your radio system is just as important as your vehicle itself. The integration of real-time telemetry, 12-channel control, drag race launch control and professional mixing capabilities makes this ideal for competitive racing, from high-speed off-road circuits to precision on-road touring car racing. Whether you're looking to upgrade from a basic entry-level RC car radio or you're a seasoned competitor wanting the absolute latest technology, the iXSR+ delivers the connectivity, programmability and reliability that accomplished drivers demand. The included SR515 receiver is a modern, feature-rich unit that supports the latest Spektrum Smart Technology, and the complete package arrives ready to use with no additional purchases necessary. For RC enthusiasts in the UK seeking a transmitter that will serve them reliably for years of competitive driving whilst continuously improving through firmware updates and expanding capabilities, the iXSR+ represents outstanding value at its price point.
Frequently Asked Questions
- Is the Spektrum iXSR+ suitable for beginners to RC? — Whilst the iXSR+ includes beginner-friendly features like the SimpleScroll menu interface and Model Match technology that prevents operating vehicles with incorrect settings, this is fundamentally a professional-grade radio designed for experienced drivers. The 12-channel capability, advanced mixing features and comprehensive telemetry system are overkill for beginners who might be better served by a simpler, more affordable radio. That said, if you're planning to progress seriously in RC and want a radio that will serve you for years, buying the iXSR+ immediately saves money in the long run rather than upgrading multiple times.
- What battery does the iXSR+ require? — The Spektrum iXSR+ comes with a 10,500mAh 1S lithium-ion battery pre-installed and ready to use immediately. This internal battery is charged via the included USB-C cable and standard USB power adapter. The large capacity ensures extended operating time between charges, particularly useful during long practice sessions or race days.
- What is the difference between DSMR+ and the earlier DSMR technology? — DSMR+ includes all the improvements of DSMR technology plus new capabilities such as advanced mixing features, throttle mixes, absolute travel support, emergency brake functionality, logical operators, combo functions and analog switch support. These additions give you far more sophisticated control over your vehicles, particularly for advanced setups like 4-wheel steering and traction control systems.
- Is the iXSR+ waterproof? — The Spektrum iXSR+ is designed for surface RC use and is suitable for dry conditions. Whilst the radio itself is not fully waterproof, it is built to withstand the typical splashes and dust encountered at RC racing tracks and fields in the UK. The included foam carry case provides protection when transporting the radio.
- What receivers are compatible with the iXSR+? — The iXSR+ works with any Spektrum DSMR+ or DSMR receiver thanks to its dual protocol compatibility. This includes marine-specific Spektrum receivers and most receivers from Spektrum's existing product range. The included SR515 is a 5-channel receiver ideal for standard RC car applications, but if you need more channels, Spektrum offers other receiver options with higher channel counts.
- How long does the battery take to charge? — The 10,500mAh lithium-ion battery charges via USB-C, with typical charge times depending on the power adapter used. Standard USB power supplies take several hours, whilst higher-capacity adapters can charge faster. Spektrum does not specify exact charge times in the documentation, so you should allow several hours between uses.
- Can I use my existing Spektrum receivers with the iXSR+? — Yes. The dual protocol compatibility means the iXSR+ works with both DSMR+ and DSMR receivers, so if you already own Spektrum receivers from previous transmitters, they will bind and operate with the iXSR+ without modification. This is one of the key advantages of choosing Spektrum—your investment in receivers is protected across multiple transmitters.
- What makes the 12 channels so useful? — Twelve channels allow you to independently control up to twelve separate functions on your vehicle. Beyond the basic steering and throttle channels, additional channels can control winches, lights, camera servos, auxiliary suspension adjustments, water pumps or any other electronically controllable system. This flexibility is essential for vehicles with complex requirements or multiple auxiliary systems.
- Does the iXSR+ work with AVC and MS6X systems? — Yes, the iXSR+ is fully compatible with Spektrum's AVC (Active Vehicle Control) autonomous stability system and MS6X motorcycle stabilisation technology. If you use these advanced systems, the iXSR+ can custom-tune their parameters through dedicated programming menus, allowing you to dial in the perfect driving characteristics for your skill level and vehicle setup.
Why Buy from RC Model Shop?
RC Model Shop is a trusted UK RC retailer and authorised dealer for all the brands we stock, including Traxxas, ARRMA, Losi, FTX, Hobbywing, Spektrum and more. Based in Walsall, we have a physical store where customers are welcome to come in, view products and purchase in store. Whether you are a seasoned competitor, a weekend basher, or just discovering the world of RC for the first time, our team of experienced RC enthusiasts is here to help you find the perfect setup and provide ongoing support. Order the SPM iXSR+ 12-Channel DSMR+ Transmitter with SR515 Receiver P-SPM6425EU today with confidence, knowing you are buying from an authorised retailer with genuine products, expert knowledge and a commitment to customer satisfaction. Shop online or visit us in Walsall — we look forward to helping you get the most out of your RC experience.
