Bogen M300 audio amplifier
Contents
1. M Class S eries Ampli Bogen s M Class delivers on what contractors need most Reliability Massive power toroid and heat sinks heavy 14 gauge chassis Back Slope AC voltage stabilization Clip limiters DC voltage over current and thermal protection circuits Flexibility 3 modes of operation 7OV Mono Dual Mono or Stereo 2 modular input bays for a variety of prioritized input types Power up to stereo 1200W of 70V mono power with low distortion and high slew rate All this wrapped into 2 rack spaces of some of the best looking metal in the industry Three Flexible Operating Modes Flexible operating modes meet different installation needs Level Control Power Mono Summing 70V Mono Bridging Speaker Circuit Output Out Out In Out Pre EQ EffectsLoop Post EQ Level Control B 70V Mono Mode Provides a single channel of output for 7OV constant voltage speaker systems Inputs form a 2x1 mixer with the front panel controls determining the signal levels from each input Level Control Power AmpA Output A Mono Summing Level Control B Power Amp B Output B Stereo Mode In stereo mode the front panel controls allow independent operation of the two power amp channels Effects Out Loop Out Level Control2. Power AmpA Output Mono Lo Cut A Summing Filter Balance Control Level Control B Speaker Output B Power Amp B Pre EQ ioe Post EQ Dual Mono Mode Dual mono provides the same mixer operation as 7 Mono Mode but with two amplifier channels for low impedance speaker systems A balance control is provided to adjust the overall volume level between the two amplifier outputs Inputs form a 2x1 mixer with the front panel controls determining the signal levels from each input 3 Models M600 M450 and M300 Clip detection and limiting circuits for speaker stereo power levels 600 450W 300W protection per channel 4 ohms both channels driven Power saving Sleep Mode for intermittent use 3 mono power levels 1200W 900W or 600W applications speaker systems Signal Clip Sleep Mode and Protect indicators 3 modes of operation to choose from Back Slope AC voltage stabilization for depend Mono Dual Mono or Stereo able performance over varying AC line voltages Low noise low distortion and high slew rate Heavy 14 gauge steel chassis with cast Flexible modular input capability 2 module capacity aluminum front panel Professional quality balanced high impedance Recessed volume control knobs with snap on input module included protective cover 3 selectable low frequency roll off choices Mounts in 2 rack spaces 3 1 2 di
3. Output Regulation 1 kHz direct 0 5 dB 8 ohms 1 kHz bridged 1 5 dB 70V Electronically balanced high impedance module standard other modular input types available Indicators Status On Protect Sleep Clip Limit Signal 15 to 105 degrees F Forced Air Variable Speed Fan 17 X 3 1 2 x 16 19 wide with Rack Ears Low frequency Thermal Low lmpedance Circuit Breaker Short Circuit Sleep Mode Back Slope regulation Stereo Dual Mono 70V Mono Operation Toroidal Power Transformer Both channels driven at nominal line voltage 120V 60Hz Module set to Gain of 1 Requires 20A NEMA 5 20R Type Receptacle RPK86 PVMC Rear Rack Module Mounting Security Kit 1 Cover BOGEN COMMUNICATIONS INC 50 Spring Street Ramsey NJ 07446 U S A Tel 201 934 8500 Fax 201 934 9832 www bogen com 55 0100 01D 0707 2007 Bogen Communications Inc All rights reserved Specifications subject to change without notice Three M Class models M600 M450 and M300 respectively provide 600W 450W and 300W per channel into 4 ohm loads 1200W 900W 600W for systems Each amplifier is powered by an oversized toroidal transformer for solid performance
4. cally returns the unit to full power when an audio signal is detected without cutting off the beginning of the signal Sleep mode is defeatable M Class amplifiers support up to two input modules with up to two priority settings Either module can be set as a higher priority making the other module the lower priority Both module inputs can be mixed together Each amplifier comes standard with a professional quality stereo high impedance balanced input module Other modules can be added as needed The top of the front panel is angled slightly allowing easy removal of the knob cover and also allowing two units to be stacked on top of each other without empty rack spaces between them Lights amber when amp enters clipping and limiter circuit activates or when there are excessively low impedance loads status signal clip limit Secure but easily removable for filter cleaning 20 position detented volume control one for each channel They are recessed in the cast aluminum front panel and are protected from casual tampering by a snap on knob cover not shown M CLASS AMPLIFIER M600 Green On Normal Operation Sleep Mode Protect DC Thermal Overload Select a low frequency roll off of 65Hz or 125Hz for transformer coupled and horn speakers Flat position allows full low frequency performance For 7OV constant voltage speaker systems Provides a single channel of amplification Model M600 Load Rat
5. dust build up Choose of three settings to meet application needs 7OV Mono Dual Mono or Stereo Mono provides one channel of 70V constant voltage output with the two modular inputs combined in a 2 1 mixer Dual Mono provides 2 identical channels of low impedance power with modular inputs combined in a 2 1 mixer 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 BAL2S comes standard with each amplifier Other modules offer more advanced functionality LINE MIC INPUTS LMM1S LMR1S Actively Balanced Emulated Transformer Inputs with Remote Volume Control T gt Input level controlled by remote panel or direct voltage LMR1S Wall Plate Control included with LMR1S only Limiter with LED activity indicator LMR1S Line MIC gain switch Gain Trim control Bass amp Treble controls Noise gate w threshold control Fade back from mute 24V phantom power Priority amp bus assignments Screw terminal input Mutes lower priority modules Mutable by higher priority modules 1 15 Same as LMR1S without Remote Volume capability MICROPHONE INPUTS 15 MIC1X Low impedance Tra
6. ed Stereo Input Gain Trim control Bass amp 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 MONO AUX INPUT MAX1R Unbalanced Mono Input Gain Trim control Bass amp 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 INPUT BRG1R Daisy Chain Multiple Amplifier Inputs Gain Trim control Ground isolated input to eliminate ground loop Input signal available at buffered output Priority assignable Variable ducking level when muted Fade back from mute Buffered output not muted Bus assignable RCA input and output connector TRANSFORMER BALANCED INPUT TBL1S Transformer Balanced AUX Input TONE GENERATOR TNG1S Multiple Tone Generator Input Gain Trim control Bass amp Treble controls Transformer isolated dual impedance line level input Variable ducking level when muted Mute send amp receive Fade back from mute Mute send threshold amp duration adjustments Priority amp Bus assignable Pluggable screw terminal connections LISTEN TONES ON THE WEB Level control Select 4 of 8 tones to trigger Burst steady slow whoop siren mechanical bell Klaxon night ringer double chime amp doorbell t
7. ings a 60 GO0W Ch 80 400W Ch 24 ad aa Ww CLASS 2 WIRING Indicates audio signal is present FAMSCY NEW JENSCY OUTPUT DO NOT GROUND SPEAKER LINES C US LISTED COMMERCIAL AUDIO AMBLSFIER 1428 120VAC 8 60 Hz J A CHANNEL RALANCE For 4 to 8 ohm speaker loads Unit works into loads as low as 2 ohms without overloading Allows the output level of one channel to be lower than the other channel s output level EFFECTS LOOP STEREO WER yono Cuar OUTPUT FEEDS OUT IN PREEQ POSTEQ Provides insert point for outboard signal processing equipment when the amplifier is in either 7 Mono or Dual Mono modes modular inputs a 2 1 mixer configuration Not used in stereo mode 70V am High quality magnetic circuit breaker The unit can accept one or two Bogen input modules Each amplifier comes with a balanced high impedance stereo input module o EO 2 amp 4 In mono modes the connectors provide output signal feeds both before and after any outboard signal processing In stereo mode the Pre EQ connector provides mono mix output of the stereo input signal Turns off the power saving sleep mode Two independent variable speed fans respond only as needed to keep the amplifiers cool which reduces
8. nsformer balanced Microphone Inputs Gain Trim control Bass amp Treble controls Noise gate w Threshold amp Duration control Limiter w Threshold control 24V Phantom power Priority amp Bus assignable Balanced transformer isolated Screw terminals MIC1S XLR connector MIC1X MICROPHONE INPUTS MIC2S MIC2X Low impedance Electronic balanced Microphone Inputs Gain Trim control High Cut Low Cut controls Enhance control Noise gate w Threshold control Limiter w Threshold control 24V Phantom power Priority amp Bus assignable Screw terminals MIC2S XLR connector MIC2X TELEPHONE INPUT 115 Interfaces to Telephone System s Loop Start Ground Start Trunks or Paging Ports e Bus assignable amp Transformer isolated e Screw terminal connections Loop start or ground start trunk interfacing Dry loop interface to paging ports Audio activated paging in dry loop Gain Trim control Noise gate amp Limiter Mutes lower priority modules Mutable by higher priority modules Accessories PRS48 48V DC Power Supply BALANCED INPUT BAL2S Stereo Balanced Input Stereo high impedance electronically balanced inputs Professional quality low noise performance Selectable gain of 0 18 dB Compatible with telephone system page ports Mutable by higher priority modules Variable ducking level when muted Fade back from mute Screw terminal connections STEREO AUX INPUT Unbalanc
9. ones Momentary amp continuous playback modes Microprocessor controlled Priority assignable Mute send amp receive Screw terminal trigger connections RELAY INPUT OUTPUT RIO1S Transformer isolated balanced line level input 600 ohm or 10k jumper selectable input impedance 8 ohm 750mW Mix Bus output Input and output level controls Relay contacts respond to selectable priority level N O or N C relay contacts External control of priority muting Input can be muted from higher priority modules with signal fade back Power Output 70V Mono 1200W 4 ohms 900W 5 5 ohms 600W 8 ohms 4 ohm 600W per channel 450W per channel 300W per channel 8 ohm 400W per channel 300W per channel 200W per channel Input Sensitivity At Backplane Connector or using 1 161V for 600W 4 ohms 1 010V for 450W 4 ohms 0 840V for 300W 4 ohms Standard Input Module incl S N Ratio 20K BW 109 dB ref 8 ohms FP 106 dB ref 8 ohms FP 103 dB ref 8 ohms FP Product Weight 46 b 44 b 41 b Connectors Power 2 20A line cord C 15 line cord 1 7 15A line cord Dependent on Modules installed stereo high impedance balanced module w screw terminals included 5 pin touch proof Barrier Strip RCA Pre amp Post EQ Output Power Bandwidth 20 Hz 40 kHz 5 THD THD 1 kHz rated power less than 02 Load Impedance 4 8 ohms 70V Minimum Load Impedance Stereo 2 ohms Frequency Response 1 watt 20 Hz 20 kHz 0 25 dB
10. rectly stack 2 1 mixer function when in mono modes able without need for extra space above or below Prioritized inputs when in mono modes 2 independent continuously variable cooling fans for dependable and quiet operation Insert connectors for outboard equipment in mono modes Easily removable front fan grilles Post and Pre EQ Output Feeds in mono mode Stable into 2 ohm loads DC overload and thermal protection circuits Bogen s patented Back Slope circuitry assures consistent performance and reliability by regulating the proper amount of AC energy from amplifier s power toroid as AC line voltages rise and fall up to 10 thus maintaining maximum performance This also prevents damage to the amplifier over varying line voltages and load conditions Back Slope provides these advantages prevents component damage to the amplifier if the power line voltage goes above its nominal value and improves the reliability of the unit the output voltage of the amplifier is better controlled when the unit is lightly loaded ensures better low frequency performance into regulates the rail voltage of the amplifier efficiently step down transformers with minimal wasted heat Energy saving Sleep Mode feature reduces amplifier power consumption during idle periods When a signal is absent for more than three minutes the unit will go into sleep mode During sleep mode the unit draws less power Instant on wake operation automati
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