Operation

70V Mono Mode

Placing the 3-position switch to its right most position puts the amplifier in the 70V Mono mode of operation. The amplifier supplies a single channel of amplification in this mode (see 70V Mono Mode Block Diagram). This mode also

mixes the signals from each input module into a mono pro- gram. Input signals of modules that are assigned to the "A" bus are controlled by the "A" level control on the front of

the unit and likewise for modules whose outputs are

assigned to the "B" bus. By assigning each module to a different bus, a 2:1 mixer is formed with the front-mount- ed level controls adjusting the mix. Additionally, one module can be set to mute the other when it is active, thereby providing an effective paging system (see the section on Module Priority). It is important in this mode to set the assignment jumpers on the two input modules so that their outputs are on different audio buses (see the section on Audio Buses). Speakers must be correct for 70V operation. (See section on 70V “Transformer- Coupled” Speakers).

70V Mono Mode Block DiagramDual Mono Mode Block Diagram

Dual Mono Mode

Placing the 3-position switch to its center position puts the amplifier in the Dual Mono mode of operation.This mode is similar to the 70V Mono mode except that the amplifier supplies two channels of low-impedance amplification in this

mode (see Dual Mono Mode Block Diagram). This mode still

mixes the input signal from the different modules but a Channel Balance control is provided to adjust the output

levels of one channel against the other (see the section on

Channel Balance). It is important in this mode to set the assignment jumpers on the two input modules so that their outputs are on different audio buses (see the section on Audio Buses). Speakers must be low-impedance type, not 70V type.

Audio Buses

The M-Class amplifier contains two separate audio buses.The "A" bus level is adjusted by the "A" level control on the front of the unit and the "B" bus is adjusted by the "B" Level control. Most Bogen modules provide a means to assign their output to either or both of the audio buses.The instructions that accompany the mod- ules will describe the jumper settings for these assignments.When using the M-Class amplifier in either the 70V Mono or Dual Mono modes, the module signals will be mixed (see 70V Mono Mode under the Operation sec- tion of the manual). For maximum control when mixing signals, it is important that each of the two input mod- ules be set so that the outputs feed different audio buses. Otherwise, proper mixing of the signals will be diffi- cult. Check that each module is set to a different audio bus before installing it.

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Bogen M300 manual 70V Mono Mode, Dual Mono Mode, Audio Buses
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M300 specifications

The Bogen M300 is a versatile and powerful public address system designed for a wide range of applications, including schools, churches, auditoriums, and outdoor events. Its robust design and advanced features make it an ideal choice for anyone looking to enhance their audio experience.

One of the standout features of the Bogen M300 is its high-quality audio performance. The system is equipped with a 300-watt amplifier that delivers clear and powerful sound, ensuring that every announcement or musical performance is heard loud and clear. The built-in EQ settings allow users to fine-tune the audio output for different environments, providing flexibility in various settings.

The M300 is also designed for ease of use. Its intuitive interface includes straightforward controls, allowing users to quickly adjust volume levels, tone quality, and other settings without any hassle. Additionally, the system includes a variety of input options, such as XLR and 1/4-inch inputs, which enable compatibility with a wide range of microphones and audio sources.

Another notable characteristic of the Bogen M300 is its portability. Weighing only a fraction of what traditional PA systems do, the M300 can be easily transported from one location to another. Its rugged construction ensures durability, making it suitable for use in both indoor and outdoor settings.

The M300 is also equipped with advanced technologies, including built-in Bluetooth connectivity, allowing users to stream audio wirelessly from their devices. This feature makes it easy to play background music or audio files without the need for cumbersome cables.

Safety and reliability are also a priority for Bogen, and the M300 comes with integrated protection features that prevent overheating and short-circuiting. This ensures that the system operates smoothly, even during extended use.

Overall, the Bogen M300 stands out as a powerful and flexible public address system. With its high-quality audio performance, user-friendly design, and portable nature, it’s an excellent choice for anyone in need of a reliable audio solution. Whether you're presenting in a classroom, performing in a park, or delivering a sermon in a church, the Bogen M300 is engineered to meet your audio needs effectively.
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