Sacramento Electronic Supply Company Bogen Communications M-Class Modular Amplifiers

Bogen Communications M-Class Modular Amplifiers

Bogen's M-Class modular amplifiers provide professional sound installers with exactly what they need from an amplifier: 3 modes of operation: stereo (4-ohm), 70V mono, dual mono (4-ohm); 2 bays for a variety of input modules; up to 600W/ch stereo (4-ohm) or 1200W of 70V mono power; massive power toroid and heat sinks; heavy 14-gauge chassis; patented Back-Slope™ AC voltage stabilization; clip limiters; and DC voltage, over-current, and thermal protection circuits.

P r o d u c t F e a t u r e s :
• 3 mono power levels: 600W, 900W, or 1200W for 70V speaker systems
• 3 stereo power levels: 300W, 450W, or 600W per channel @ 4 ohms
• 3 modes of operation to choose from- Stereo (4-ohm), Dual Mono (4-ohm), or 70V Mono
• Low noise, low distortion, and high slew rate
• Flexible modular input capability
• Professional, high-impedance, balanced stereo input module
• 3 selectable low-frequency, roll-off choices
• 2x1 mixer function when in mono modes
• Insert connections for outboard equipment (in mono modes)
• Post- and Pre-EQ Output Feeds (summed mono out in stereo mode)
• DC, overload, short circuit, and thermal protection circuits
• Clip limiting circuits for speaker protection
• Power-saving Sleep Mode for intermittent use
• Status, Signal, and Clip/Limit indicators
• Back-Slope AC voltage stabilization for dependable performance over varying AC line voltages
• Recessed volume control knobs
• Mounts in 2 rack spaces (3-1/2") directly stackable
• 2 independent, continuously variable, cooling fans
• Easily removable front fan grilles with filters
• Stable into 2-ohm loads

Bogen Communications M-Class Modular Amplifiers

Part#	Wattage	Weight	Dimensions	Check Price
M300	300	41	17" x 3.5" x 16"
M450	450	44	17" x 3.5" x 16"
M600	600	46	17" x 3.5" x 16"

Input Modules
Each amplifier can accept up to two Bogen input modules, with user-settable priority levels. Plug-in modules support different signal processing options including the ability to interface to balanced and unbalanced high- and low-level inputs, stereo or mono, telephone PBXs, and microphones. A stereo, balanced, high-impedance, input module (BAL1S) comes standard with each amplifier. Other modules offer more advanced functionality.

Part#	Description	Check Price
BAL1S	BALANCED INPUT Stereo, balanced input module. (Comes standard with M600/450/300.) • Stereo, high-impedance, balanced inputs • Professional-quality, low noise performance • Mutable by higher priority modules • Variable ducking level when muted • Fade back from mute	Standard on M300, M450, & M600
TEL1S	TELEPHONE INPUT Interfaces to telephone system’s loop start/ground start trunks or paging ports. • Loop start or ground start trunk interfacing (requires external power supply) • Dry loop interface to paging ports • Audio-activated paging in dry loop • Gain/Trim control • Noise gate • Limiter • Mutes lower priority modules • Mutable by higher priority modules • Bus assignable • Transformer-isolated • Screw terminal connections
SAX1R	STEREO AUX INPUT Stereo, unbalanced input module. • Gain/Trim control • Bass & Treble controls • Gate feature mutes lower priority modules • Mutable by higher priority modules • Variable ducking level when muted • Fade back from mute • Stereo to mono summing option • Bus assignable • RCA connectors
BRG1R	BRIDGING INPUT Daisy chain multiple amplifier inputs. • Gain/Trim control • Input signal available at buffered output • Mutes lower priority modules • Mutable by higher priority modules • Variable ducking level when muted • Buffered output not muted • Bus assignable • RCA input and output connections
MIC1X	MICROPHONE INPUT Low-impedance, balanced microphone input. • Gain/Trim control • Bass & Treble controls • Noise gate • Limiter • 24V Phantom Power • Mutes lower priority modules • Mutable by higher priority modules • Bus assignable • Balanced, transformer-isolated • XLR connector
MAX1R	MONO AUX INPUT Mono, unbalanced input module. • Gain/Trim control • Bass & Treble controls • Gate feature mutes lower priority modules • Mutable by higher priority modules • Variable ducking level when muted • Fade back from mute • Bus assignable • RCA connector

Accessories

	Part	Description	Check Price
	RPK86	Rack Mounting Kit for M-Class & Black Max Series