Ramsey Electronics 2 1/2 Watt Super Sleuth Audio Amplifier, BN9 manual

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Problem: Output drops out and then builds up again each time volume control is advanced.

Solution: You are running with too much input power. Change circuit for lower gain operation or re- duce input level.

Problem: Very strong AC hum.

Solution: Input may not be shielded or connected properly. Check all of your connections to make sure you have shielded wire and connections are grounded.

Problem: Still humming or slight annoying AC hum.

Solution: Try using a battery or regulated power supply. Also make sure your microphone casing is shielded as well. These noise problems are most evident with high impedance microphones.

Problem: All kinds of pops, siren sounds or something like it (audio with no input)

Solution: Usually this can be cured by shortening input and output wires, and is definitely helped by using shielded wire on the inputs and outputs. This is caused by self oscillation and is very easily observed in an amplifier with this much gain. All that is happening is some of the out- put is being picked up by the input and re-amplified over and over again in a continuous loop.

Problem: Motorboating sound, and it isn’t the weekend yet!

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Contents Kit No. BN9 Introduction to the BN9 BN9 Parts List BN9 PC Board Assembly Assembly of the BN9 Page Initial Tests Troubleshooting Microphone and Audio Input ConsiderationGain Considerations Page Page High sensitivity listening device Components required BN9 Application IdeasRemote OU T Other Applications Signal Tracer Test ProbeRamsey Kit Warranty Call or write for our full line catalog

BN9, 2 1/2 Watt Super Sleuth Audio Amplifier specifications

The Ramsey Electronics 2 1/2 Watt Super Sleuth Audio Amplifier, model BN9, is a compact yet powerful device designed for enthusiasts and professionals seeking high-quality audio amplification solutions. Engineered with precision, the BN9 amplifier stands out for its ability to deliver robust audio performance in a remarkably small footprint. It is especially favored for use in surveillance applications, audio monitoring, and small-scale public address systems.

One of the main features of the BN9 amplifier is its impressive output power. With an output of 2.5 watts, it is capable of driving small speakers effectively, making it an excellent choice for personal audio projects or discreet monitoring setups. The ability to output this power while maintaining clarity ensures that users can enjoy high-fidelity sound without distortion, even at higher volume levels.

The BN9 incorporates innovative technologies that enhance its functionality and ease of use. The amplifier is equipped with a built-in power supply, which simplifies setup and eliminates the need for additional external components. This feature is particularly beneficial for users who may not have extensive technical knowledge, allowing for a straightforward plug-and-play operation. Additionally, the amplifier boasts a compact design, measuring just a few inches across, making it easy to integrate into various setups without consuming valuable space.

Another noteworthy characteristic of the Ramsey BN9 is its versatility. It can be used with a wide range of audio sources, including microphones, audio players, and computers, making it suitable for diverse applications. Furthermore, the unit features adjustable volume controls, allowing users to tailor the sound output to their specific requirements. The use of high-quality components ensures durability and longevity, which is essential for both casual users and professionals who rely on consistent performance.

In terms of connectivity, the BN9 amplifier is designed for user-friendly integration, featuring standard input and output jacks that accommodate various audio devices. This flexibility further enhances its usability in multiple settings, from home audio systems to more complex surveillance configurations.

In conclusion, the Ramsey Electronics 2 1/2 Watt Super Sleuth Audio Amplifier, BN9, combines quality, versatility, and ease of use into a single compact unit, making it an excellent choice for anyone seeking reliable audio amplification in a wide array of applications. Whether for home use, surveillance, or public announcements, the BN9 continues to receive acclaim for its performance and functionality.