|   The basic public address mixer amplifiers have power ratings from 30W, 60W, 120W, 240W, 350W, 500W to 650W. They are featured of 3 balanced microphone inputs, 2 aux inputs and 2 EMC inputs.   Priority muting is achieved via EMC1-2 for overriding other inputs except Mic1 on front panel. Individual gain controls are provided for Mic 1-3 and Aux 1-2, bass and treble controls and master volume control are provided for overall tone control. 70V, 100V and low impedance 4-16ohms speaker outputs are provided. Extensive protection from short-circuit, overload and high temp.     Features   * Mixer amplifier for paging and background music system   * Rated power from 30W, 60W, 120W, 240W, 350W, 500W to 650W   * 2U rack mount (less than 350W) and 3U rack mount design   * 70V, 100V and low impedance 4-16ohm speaker output   * Three balanced Mic inputs   * Mic 1(phone jack) with VOX priority and VOX level on front panel   * Mic 2-3 by XLR type on rear panel with phantom power   * Two Aux Inputs and 2 line inputs for spare use   * Two EMC priority inputs   * EMC1 has priority over all inputs except MIC1   * Mic 1-3, Aux 1-2 and master volume controls and bass/treble tone control   * Short circuit, overload and high temp protection     Optional   * DC 24V available on less than 500W models * Panel with/without handhold * Faults monitoring module, it can output short circuit signal to achieve main/spare amplifier 
   
                
                    
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                            Specifications   
                            
                                
                                    
                                        | Model | T-350B | T-550B | T-650B |  
                                        | Rated Power Output | 350W | 550W | 650W |  
                                        | Speaker Outputs | 70V, 100V & 4~16Ω |  
                                        | Input Sensitivity & Impedance | MIC 1, 2, 3: 5mV/600Ω, Unbalanced Phone Jack Input |  
                                        | MIC 2, 3:±2.5mV/2KΩ, Balanced XLR Input |  
                                        | MIC 2, 3: 775mV/10KΩ, Unbalanced RCA Input |  
                                        | AUX 1, 2: 350mV/10KΩ, Unbalanced RCA Input |  
                                        | EMC: 775mV/10KΩ, Unbalanced RCA Input |  
                                        | Output Sensitivity & Impedance | MIX OUT: 1000mV/470Ω, Unbalanced RCA Output |  
                                        | Tone | Bass:±10dB At 100Hz |  
                                        | Treble:±10dB At 10KHz |  
                                        | Frequency Response | 50Hz~16KHz(+1dB,±3dB) |  
                                        | S/N Ratio | MIC 1, 2, 3: 66dB, AUX 1, 2: 80dB |  
                                        | THD | Less Than 0.5% At 1KHz, 1/3 Rated Power |  
                                        | Muting Function | MIC 1 Overrides Other Input Signals |  
                                        | With 0-30dB Attenuation |  
                                        | Tone Control | ±2.5mV~±75mV At 30dB |  
                                        | Crosstalk | ≤50dB |  
                                        | Phantom Power | +48V, With LED Indicator |  
                                        | Cooling | Fan Automatically Start Up When Temp Reaches 55℃ |  
                                        | Protection | High Temp, Overload & Short-Circuit |  
                                        | Power Supply | ~110V/60Hz Or ~230V/50Hz Or DC 24V |  
                                        | Power Consumption | 500W | 750W | 950W |  
                                        | Weight | 18.7Kg | 22.4Kg | 23.7Kg |  
                                        | Dimensions | 484x385x132mm |  
                                        | Finish | Panel: Aluminum Plate, Black Case: Steel Plate, Black |  |  |