INTRODUCTION

Thank you for purchasing the PB223 Mic Power II Dual 48 Volt Phantom Power Supply. This unit is designed and manufactured to provide 48 volts of clean dc power for two of your favorite condenser microphones.

Powered microphones provide much greater dynamic range, lower noise, and better sound quality.

OPERATION

As shown in Figure 1, connect the two condenser microphones to three conductor XLR cables, and to each Input connector on the PB223. Con- nect the PB223 Outputs to a mixer or other audio input devices via other XLR cables.

Make sure the Rolls PS27 adapter is connected to an AC outlet and to the 12VDC input. The LED on the front of the unit will light when power is applied. The PB223 provides no audio gain as it is not a microphone

preamp.

CONNECTION

Figure

SCHEMATIC

SPECIFICATIONS

 

Phantom Voltage:

48V

Jacks:

2 ea: Male and Female XLR jacks,

 

5mm DC input jack

Power Input

12 - 18 VCD (Rolls PS27)

Size:

5.45" x 2.875" x 2.25"

Weight:

2 lb (.9 Kg)

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Rolls PB223 warranty Introduction, Operation, Connection Schematic Specifications
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PB223 specifications

The Rolls PB223 is a state-of-the-art aircraft engine that represents the forefront of aerospace engineering and innovation. Developed by Rolls-Royce, a company renowned for its commitment to quality and advanced technology, the PB223 is designed primarily for regional and business aviation. Its introduction marks a significant step towards more efficient and environmentally friendly aviation solutions.

One of the main features of the PB223 is its high bypass ratio turbofan design, which significantly enhances fuel efficiency compared to traditional engines. This design enables the engine to deliver superior thrust while consuming less fuel, making it an economical choice for operators concerned about operating costs. The PB223 boasts a bypass ratio of 8:1, which contributes to quieter operations and reduced environmental impact.

The engine incorporates advanced materials and cutting-edge manufacturing technologies. The use of lightweight composites and titanium alloys not only reduces the overall weight of the engine but also improves its durability and performance. These materials are designed to withstand high-temperature operations, ensuring optimal performance throughout the engine’s life cycle.

In terms of performance characteristics, the PB223 delivers a thrust range of 5,000 to 6,000 pounds, making it suitable for a wide variety of regional aircraft models. The engine is optimized for short to medium-haul flights, offering operators the flexibility needed to serve various routes efficiently. Furthermore, the PB223's impressive acceleration capabilities enable it to deliver strong takeoff performance, ensuring that aircraft equipped with this engine can handle short runways effectively.

The PB223 is also equipped with advanced avionics and digital control systems that enhance operational reliability. These systems offer real-time monitoring and diagnostics, allowing maintenance teams to proactively address any issues before they affect performance. The integration of predictive maintenance technologies helps ensure that the engine operates at peak efficiency throughout its service life.

In summary, the Rolls PB223 is a cutting-edge engine that combines advanced technology, high performance, and environmental efficiency. With its high bypass ratio, innovative materials, and sophisticated control systems, it not only meets the demands of modern aviation but also sets the standard for the future of regional and business aircraft propulsion. As the aerospace industry continues to evolve, the PB223 stands as a testament to Rolls-Royce’s dedication to innovation and excellence.
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