Modes of Operation, Effects Loop, Output Feeds

Operation

Effects Loop

The effects loop connectors act as an insertion point for outboard signal processing equipment when the M-Class is operating in either the 70V Mono or Dual Mono modes. In these modes, the inputs and front panel controls form a 2:1 mixer. Connect

the Effects Loop Out to the input of the external signal processing equipment. Connect the Effects Loop In to the output of the external signal processing equipment. Inserting

an RCA jack into the Effects Loop In connector will automatically disconnect the input module signals from the power amp stage so it can be routed through the external equipment. Removing the jack from the Effects Loop In connector will reestablish the direct connection of the input modules to the power amp stage. The Effects Loop signals are quasi-balanced, which means that they are intended for use with unbalanced equipment but will improve the noise immunity. However, it is still a good practice to keep these connections as short as pos- sible.

Output Feeds

Two different output feeds are provided that can supply signal to other amplifiers and audio equipment. Both outputs are designed to feed high-impedance, unbalanced inputs

of external equipment.The outputs are also quasi-balanced for better noise immunity, but connection lengths for these outputs should still be kept as short as possible.The Pre-EQ Output Feed provides the signal before any external signal processing affects it.

The Post-EQ Output Feed provides a signal that has been affected by the external signal processing equipment and lo-cut filter. Depending on the application, it may be more desirable to use the externally-processed signal rather than the raw version of the signal.

Modes of Operation

Stereo Mode

Placing the 3-position switch to its left most position puts the amplifier in the stereo mode of operation.The amplifier supplies two independent channels of low-impedance amplification in

this mode (see Stereo Mode Block Diagram).These channels can

be used to supply left and right audio for stereo installations of

2 separate zones of amplification with different audio programs.

When using the supplied input module in this mode, the input applied to the "A" input will be controlled by the "A" level con-

trol and the output will be available on the "A" channel speaker terminals. Likewise for the "B" channel.When using other modules, there are jumper settings that allow those modules to apply signal to the "A" or "B" chan- nels, or both. See the application examples for more information on how to use the two audio buses.

Stereo Mode Block Diagram

M450, M600, BOGEN M300 specifications

The Bogen M300, M600, and M450 are sophisticated audio products celebrated for their versatility and performance in various professional applications. These models are designed to meet the rigorous demands of commercial sound systems, featuring advanced technologies that enhance their functionality and audio quality.

The Bogen M300 is a compact mixer with a power amplifier built-in, making it an excellent choice for small venues and installations. One of its standout features is its 3-channel mixer that allows users to connect diverse audio sources, including microphones and musical instruments. This model supports both mono and stereo input configurations, ensuring flexibility for different setups. The integrated power amplifier delivers a robust output, capable of driving speakers efficiently while maintaining clear audio fidelity.

In contrast, the Bogen M600 takes it a step further with expanded capabilities. This mixer is equipped with 6 input channels, providing users with greater versatility when connecting multiple audio sources. Additionally, the M600 features a built-in equalizer, enabling users to tweak sound frequencies to suit specific environments or preferences. Its compact design allows for easy installation in various settings, from schools to conference rooms, ensuring clear communication and optimal sound distribution.

The Bogen M450 is designed for ruggedness and durability, ideal for both portable and permanent installations. This model focuses on delivering high-quality sound reinforcement, making it suitable for larger venues. With multiple input options and advanced signal processing capabilities, the M450 provides superior sound clarity even in challenging acoustic environments. The unit features various output configurations, allowing it to work seamlessly with different speaker systems, whether in high-impedance or low-impedance setups.

All three models incorporate Bogen's commitment to ease of use, with intuitive controls that make adjustments straightforward for operators. Additionally, they come with extensive protection circuitry to safeguard against overloads and ensure long-term reliability.

In summary, the Bogen M300, M600, and M450 represent the pinnacle of audio technology in their respective categories. With their unique features, remarkable build quality, and versatility, these mixers are tailored to meet the needs of various sound professionals, guaranteeing exceptional audio experiences in any application. These innovative products continue to set the standard for audio solutions in commercial environments worldwide.