Introduction

Bogen's M-Class amplifiers deliver on what professional sound installers need most: Flexibility, Power, and Reliability.

Flexibility

The M-Class allows for the installation of up to 2 input modules, accepting inputs from microphones, telephone systems, stereo sources, mono sources, or daisy-chaining of amplifiers. Each M-Class model comes standard with a single, professional-quality, stereo, high-impedance balanced input module.

The M-Class has three operating modes to meet different installation needs - Stereo, Dual Mono, or 70V Mono. Front panel controls allow independent operation of each power amplifier channel in stereo mode. In either 70V Mono or Dual Mono modes, the inputs form a 2:1 mixer with the front panel controls setting the signal levels from each input. Prioritized input modules and 2:1 mixer operation allow the M-Class to supply the front- end signal processing required in paging systems and the power to cover any size installation.

Power

With three different models (M600, M450, and M300), the M-Class provides 2-channel operation at 600W, 450W, and 300W per channel into 4-ohm loads. Single channel, 70V Mono operation capacities are 1200W, 900W, and 600W. Along with being powerful, these amplifiers are also compact - using up only 2 rack spaces (3-1/2") in a standard 19" rack.

Reliability

Driven by a conservatively-rated toroidal power transformer, these amplifiers are built for solid performance with low distortion and a high slew rate. Output module circuitry is located away from input module circuitry, minimizing noise and ground loops.The amplifiers require little maintenance and cleaning as internal electron- ic components are located outside of the forced air-stream flow. Front-mounted fan filters provide easy removal and cleaning.

M-Class amplifers have a variety of electronic protection circuits including overcurrent, DC voltage, and ther- mal circuits. A special Clip/Limiting circuit continuously monitors the amount of distortion in the output signal and reduces input levels as the amplifier approaches clipping. Back-Slope™, Bogen’s unique voltage stabilization circuitry, regulates the AC energy supplied to the power toroid. This improves both system performance and reliability despite varying AC supply conditions.

An energy-conserving sleep mode (defeatable) with instant-on return signal operation reduces wasted heat production in paging systems with intermittent use. In addition, large output heatsinks and dual independently- controlled, high-output, variable speed fans provide superior cooling and quiet operation while reducing dust accumulation.

Bogen's M-Class amplifiers are enclosed in a heavy-gauge steel chassis, which prevents mechanical damage to the unit's internal components even if the unit is subjected to rough handling and excessive portable installa- tions.The control knobs are located in a recessed section of the cast aluminum front panel to reduce the like- lihood of mishandling and damage.The angled design of the amplifier's front panel allows easy finger access to the front knob cover when the amplifiers are stacked tightly in a rack.

Package Contents

* M-Class Amplifier

* 2 Rack Ears

* 2

Filters and Grilles

* Instruction Manual

* Control Knob Cover

* Balanced Input Module (pre-installed)

* 4

Rubber Feet & Screws

 

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Bogen BOGEN M300, M450, M600 manual Introduction, Package Contents

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.