Amplifiers
                                                                                            
                                            
                                                                                            
                                            
                                              What’s the purpose of amplifiers exactly? Why are they necessary?                                          
                                                                                    
                                                                                
                                                                                            
                                            
                                                                                            
                                            
                                             What is a mixing amplifier?                                         
                                                                                    
                                                                                
                                                                                            
                                            
                                                                                            
                                            
                                             What is a preamplifier?                                         
                                                                                    
                                                                                
                                                                                            
                                            
                                                                                            
                                            
                                             What is a power amplifier?                                         
                                                                                    
                                                                                
                                                                                            
                                            
                                                                                            
                                            
                                             What is a matrix?