Linn Radikal Klimax Power Supply | Sondek LP12 Upgrade | Martins Hi-Fi

Timing perfection. Finally solved.

Radikal represents Linn's definitive answer to LP12 motor control. Auto-calibrating speed management, virtually silent brushed DC motor, and integrated Urika power supply—all in a machined Klimax chassis. This is the upgrade that transforms your LP12's fundamental performance.

Features & Benefits

Auto-Calibrating Speed Management

Radikal recalibrates platter speed every time you power on your LP12. Automatic adjustment compensates for bearing friction, belt tension, and temperature variations. Perfect speed accuracy without manual intervention—just press play and trust the engineering.

Brushed DC Motor Technology

The precious-metal brushed DC motor generates dramatically less electromagnetic noise than standard AC motors. Lower noise floor means greater dynamic contrast, deeper silences, and finer detail retrieval. You'll hear layers in familiar recordings you didn't know existed.

Integrated Urika Power Supply

When fitted with Linn's Urika internal phono stage, Radikal provides dedicated, regulated power. One fewer external component, shorter signal paths, and optimised power delivery. The synergy between Radikal and Urika is substantial.

Advanced Speed Control Algorithm

Sophisticated digital processing maintains platter velocity with extraordinary precision. The system constantly monitors and corrects speed deviations imperceptible to manual adjustment. Musical timing—the LP12's greatest strength—reaches new levels of accuracy.

Massive Signal-to-Noise Improvement

Radically reduced motor noise means your cartridge captures music, not interference. Bass notes gain weight and texture, midrange clarity improves, and high frequencies extend without grain. The entire frequency spectrum benefits from a blacker background.

Flexible Configuration Options

Use Radikal solely for motor control with your existing phono stage, or combine it with Urika for complete front-end optimisation. The modular approach lets you upgrade incrementally or transform your LP12 comprehensively in one step.

Klimax Chassis Construction

Solid aluminium machined chassis provides electromagnetic shielding and mechanical stability. Premium build quality matches your LP12's engineering standards. The Klimax chassis isn't just beautiful—it's functional resonance control.

System Aesthetic Integration

Available in Klimax or Akurate chassis styles to complement your existing Linn system. Visual cohesion across components reflects the engineering synergy beneath. Your system looks as integrated as it sounds.

Technical Specifications

Motor Control

• Technology: Digital speed management with auto-calibration
• Calibration: Automatic on every power-up
• Speed Accuracy: Precision crystal-referenced control
• Speed Selection: 33⅓ and 45 RPM (electronic switching)
• Motor Type: Precious-metal brushed DC motor
• Motor Mounting: Direct LP12 chassis replacement

Performance Improvements

• Electromagnetic Noise: Radically reduced vs. AC motor
• Signal-to-Noise Ratio: Substantial improvement across frequency range
• Speed Stability: Superior to all previous LP12 motor solutions
• Timing Accuracy: Auto-calibrated precision

Urika Integration

• Phono Stage Power: Dedicated regulated supply for Urika (when fitted)
• Configuration: Works with or without Urika phono stage
• Signal Path: Optimised when powering Urika internally

Chassis Options

• Klimax: Solid machined aluminium construction
• Akurate: Standard chassis (alternative specification)
• Finishes: Black or Silver (Klimax chassis)

Physical Specifications

• Dimensions: 305mm (W) x 85mm (H) x 305mm (D) (Klimax chassis)
• Weight: Approximately 5kg
• Construction: Machined aluminium (Klimax), resonance-optimised
• Power Supply: External regulated transformer

Connectivity

• Motor Connection: Dedicated cable to LP12 motor
• Urika Connection: Internal LP12 phono stage power (when fitted)
• Mains Input: IEC power socket

Power Requirements

• Mains Voltage: 100-240V AC (region-specific transformer)
• Power Consumption: Low (<20W typical operation)
• Standby Mode: Intelligent power management

Compatibility

• Turntable: Sondek LP12 (all generations)
• Replaces: Lingo, Lingo 2, Lingo 4, Akurate LP12 power supplies
• Motor Replacement: Includes brushed DC motor (replaces AC motor)
• Phono Stage: Powers Urika internal phono stage (optional)

Control

• Interface: Front panel speed selection
• Indicators: LED status display
• Operation: Fully automatic calibration

Origin

• Designed and manufactured in Scotland

Installation

• Professional installation recommended
• Complete LP12 setup and calibration required

Why Buy from Martins Hi-Fi

As Linn LP12 specialists with decades of experience, we provide expert consultation on your LP12's upgrade pathway. Radikal represents a significant investment—we'll help you understand where it fits in your turntable's evolution. Our Norwich demonstration facilities feature multiple LP12 specifications, allowing direct comparison. We offer professional installation, complete setup including bearing lubrication and suspension adjustment, and lifetime support. Generous trade-in allowances available against your existing Lingo or other LP12 power supplies.

Call: 01603 627010 | Email: info@martinshifi.co.uk

FAQ Section

Q: Where does Radikal fit in the LP12 upgrade pathway?
Radikal is typically recommended after you've addressed subchassis (Kore or Keel) and when your LP12 already features quality components. It represents a substantial investment that builds on a solid foundation. We'll assess your current LP12 specification and advise on optimal upgrade sequencing for your system and budget.

Q: What's the difference between Radikal Klimax and Akurate versions?
The Klimax chassis is machined from solid aluminium, providing superior electromagnetic shielding and resonance control. The Akurate chassis offers the same motor control technology and auto-calibration in Linn's standard enclosure at a lower price point. Sonic differences are subtle; most owners choose based on system matching and budget.

Q: Can I use Radikal without the Urika phono stage?
Absolutely. Radikal functions superbly as a motor control upgrade on its own, working with any phono stage—internal or external. The Urika integration is a bonus when you're ready, not a prerequisite. Many customers upgrade to Radikal first and add Urika later.

Q: How does Radikal compare to Lingo 4?
Radikal offers auto-calibration, the superior brushed DC motor, and Urika power integration—technologies absent in Lingo 4. The performance improvement is substantial: greater speed accuracy, lower noise floor, and better dynamic contrast. Radikal represents the pinnacle of LP12 motor control.

Q: Will I need to adjust speed manually?
No. Radikal's auto-calibration eliminates manual speed adjustment entirely. The system optimises platter velocity automatically on every power-up, compensating for all variables. Simply select 33⅓ or 45 RPM and trust the engineering.

Q: Is professional installation essential?
Yes. Installing Radikal requires complete LP12 disassembly, motor replacement, and comprehensive setup including bearing service, suspension adjustment, and cartridge optimisation. Our Linn-trained engineers ensure your upgraded LP12 performs at reference standard.

Call-to-Action

Experience Radikal Klimax in our Norwich showroom with LP12 turntables at various specification levels. Hear the transformation firsthand and discuss your LP12's optimal upgrade pathway with our specialists. We'll guide you through every decision.

Call: 01603 627010 | Email: info@martinshifi.co.uk