Telefunken M 901S Dual Tube Microphone Power Supply

Premium Dual Power Supply for TF39, TF47, and TF51 Microphones
The Telefunken M 901S is a high-quality dual power supply designed specifically for the TF39, TF47, and TF51 microphones. Engineered with precision and built to last, this power supply ensures stable performance and reliable operation for professional studio recording. Featuring a three-pattern selector switch, it provides the versatility needed to capture sound in cardioid, omnidirectional, or figure-8 polar patterns, making it an essential tool for any serious recording setup.

Precision Engineering for Maximum Microphone Performance
Built with modern circuitry and high-quality components, the M 901S is designed to provide consistent voltage regulation, ensuring that your microphone operates at peak performance regardless of fluctuations in power supply. This stability is crucial for maintaining sound integrity, reducing noise, and preserving the longevity of your tube microphone. The unit is handcrafted in South Windsor, CT, USA, using premium Signal Transformers, Nichicon capacitors, and Neutrik connectors, ensuring both durability and top-tier audio fidelity.

Slow-Ramping Filament Voltage Extends Tube Life
One of the standout features of the M 901S is its slow-ramping filament voltage, which gradually powers the microphone’s tube to extend its lifespan. By preventing sudden surges of electricity, this design significantly reduces wear and tear on the microphone’s internal components, ensuring long-term reliability. Whether used in a professional recording studio or a home setup, this feature helps maintain consistent performance and minimizes the need for frequent tube replacements.

Classic Styling with Modern Circuitry
Inspired by vintage Austrian power supply designs, the M 901S blends the classic aesthetic with modern technology. The improved circuit board layout maximizes current handling, ensuring that every component functions efficiently. This power supply is built well beyond standard specifications to guarantee reliability, allowing you to focus on recording with confidence, knowing your microphone system is in top condition.

Versatile Polar Pattern Selection
With a three-pattern selector switch, the M 901S enables quick and easy adjustments between cardioid, omnidirectional, and figure-8 polar patterns. Whether you need focused vocal capture, 360-degree room ambiance, or dual-directional sound pickup, this power supply gives you the flexibility to adapt to different recording situations. This versatility makes it an excellent choice for vocalists, instrumentalists, podcasters, and audio engineers who require precise control over their recordings.

Hand-Built for Superior Quality and Longevity
Each unit is hand-built with meticulous attention to detail, ensuring a premium product that meets the highest industry standards. The M 901S is designed to provide stable and safe operation for decades, making it a worthwhile investment for any serious audio professional. Every power supply is calibrated to match the specific microphone system it accompanies, undergoes extensive burn-in testing, and is fine-tuned to deliver optimal performance.