DB25b Direct Box

INTRODUCTION

Thank you for your purchase of the DB 25b, a passive direct box designed to take high impedance signals and convert them to low

50K PRI TO 600 ohm SEC

T1

 

P1

2

JACK M

3

 

 

XLR

 

 

 

 

 

P50K

J3

1

XFMR AUDIO

1

SPST

SW1

2 3

GROUND LIFT

impedance. The unit features an Attenuator volume control for the input signal, and a Ground Lift switch which may reduce unwanted hum caused by "ground loops".

DESCRIPTION

ATTENUATOR

SCHEMATIC

1/4

 

1/4

J1

PHONE

J2

PHONE

FOR WARRANTY

INFORMATION, SEE

OUR WEBSITE;

WWW.ROLLS.COM

Input Jacks: 1/4" unbalanced jacks for receiving line or instrument level signals. Attenuator: Reduces the input signal by the amount indicated. Ground Lift Switch: In the "Lift" position, the ground connection of the XLR jack is disconnected from the chassis.

Output Jack: XLR balanced jack for connection to a mixing board or other balanced input device.

SPECIFICATIONS

Frequency Response: 20 - 20kHz +/- 3 dB

Output Impedance: 600 Ohms

Input Impedance: 50K Ohms

Max Output Level: +4 dBm

Rolls Corporation

Salt Lake City, UT

02/08

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Rolls DB 25b specifications DB25b Direct Box, Introduction, Description, Specifications

DB 25b specifications

The Rolls-Royce DB 25B is a noteworthy engine in the realm of turbocharged aircraft propulsion, renowned for its durability, efficiency, and power output. This engine is primarily designed for smaller jets and light aircraft, incorporating cutting-edge technologies that enhance performance and reliability.

One of the main features of the DB 25B is its innovative engine design based on a two-shaft configuration. This design allows for greater flexibility and efficiency in power generation. The two-shaft system separates the high-pressure and low-pressure components of the engine, which optimizes performance across a broad range of operating conditions. This configuration not only allows for better fuel efficiency but also contributes to lower emissions, in line with increasing environmental regulations.

Another significant characteristic of the DB 25B is its advanced materials and manufacturing techniques. The engine utilizes high-strength alloys and composite materials that withstand extreme temperatures and pressures while minimizing weight. These advancements contribute to the engine’s overall performance, enhancing its capability to deliver high thrust without compromising fuel efficiency.

The integration of digital technologies in the DB 25B further elevates its performance standards. The engine employs a sophisticated electronic control unit (ECU) that monitors and adjusts various parameters in real time during flight. This digital technology improves responsiveness and enables pilots to operate the engine with greater precision, thus optimizing efficiency and safety.

Maintenance and serviceability are also key characteristics of the Rolls-Royce DB 25B. The engine is designed with ease of access in mind, allowing for quicker inspections and maintenance procedures. This reduces downtime and associated costs for operators, making the engine a compelling choice for fleet managers.

Lastly, the DB 25B’s thrust rating makes it suitable for a variety of aircraft applications, providing general aviation and business jets with the power they need for both short takeoff and landing distances, as well as high cruise speeds. The overall combination of versatility, reliability, and advanced technology makes the Rolls-Royce DB 25B an exemplary choice in modern aviation propulsion systems, standing out for its ability to adapt to the demands of today's flight operations and paving the way for a more efficient aerospace future.