| Amplifier Features | 
                            
                                | Amp Type | Tube | 
                            
                                | Chassis Material | Aluminum | 
                            
                                | Rectifier Type | Silicon Diodes | 
                            
                                | Rectifier Tubes | n/a | 
                            
                                | Variac Power Switch | n/a | 
                            
                                | Preamp Tubes | 5x Mesa 12AX7 | 
                            
                                | Power Amp Tubes | 2x Mesa 6L6 | 
                            
                                | Bias Switch for Alternate Power Tubes Types | n/a | 
                            
                                | Maintenance Free Fixed Bias | Yes | 
                            
                                | Wattage(s) Quick Reference | 40 Watts Clean/60 Watts Max or 20 Watts Clean/28 Watts Max via single, global Full/Half Power Switch - See Power Amp Details for more information
 | 
                            
                                | Built-In Power Amp Attenuation | n/a | 
                            
                                | Power Amp Details (Class & Wattage) | MESA's proprietary Dyna-Watt™, Class A/B Power Amp with a single, global Full/Half Power Switch - Each setting features a different wiring configurations, Pentode or Triode respectively. Choose from 2 power tubes operating in Class A/B Triode for lush harmonics and a sweet, liquid feel at lower volumes, producing 20 (Clean)/28 (Max) Watts or; 2 tubes operating in Class A/B Pentode for maximum power, punch and clarity, producing 40 (Clean)/60 (Max) Watts.  More information on Dyna-Watt Power can be found in the Owners Manual, which is available in the Support Section of this website. | 
                            
                                | Convection or Fan Cooling | Convection | 
                            
                                | Number of Footswitchable Channels (or Modes) | Two Channels | 
                            
                                | Number of Style Modes | Three | 
                            
                                | Number of Style Modes Per Channel | Three (Channel Cloning™) | 
                            
                                | Types of Style Modes Per Channel | Ch. 1 = Clean, Drive or HI (Channel Cloning™) Ch. 2 = Clean, Drive or HI (Channel Cloning™)
 | 
                            
                                | Channel Controls | Each Channel features Independent 3-Position Channel Cloning™ Mode Switch, Gain, Treble, Mid, Bass, Presence, Reverb and Master | 
                            
                                | Graphic EQ and/or Contour | n/a | 
                            
                                | Reverb / Effects & Bypass Options | All-Tube, Spring Reverb with Independent Channel Controls | 
                            
                                | Effects Loop & Bypass Options | Fully Buffered Series FX Loop | 
                            
                                | Global Output Level Control | n/a | 
                            
                                | Global Solo Level Control & Bypassable Options | n/a | 
                            
                                | True-Bypass Options | n/a | 
                            
                                | Tuner Output | n/a | 
                            
                                | External Switching Jack Options and/or Midi | External Switching Jack for Reverb On/Off (Reverb Footswitch and Cable sold seperately) | 
                            
                                | Speaker Outputs | One 8 Ohm and Two 4 Ohm | 
                            
                                | Cabinet Simulation - Direct Live/Recording Output | n/a | 
                            
                                | Headphone Output | n/a | 
                            
                                | Slave Output | n/a |