The Rocktron ValveSonic Plexi Tube Guitar Preamp meticulously recreates the iconic vintage British "plexi" amplifier tones. This all-tube preamp delivers an exceptionally wide range of authentic gain, from classic rock to modern high-gain sounds. A versatile 1-2 input switch toggles between modern and fatter, classic British amplifier input styles. The integrated Tight switch further modifies the input for contemporary British amplifier characteristics. Fine-tune your sound with the six-position Bright control, offering variations from vintage warmth to sharp modern brilliance. An advanced Gain control, coupled with the Boost and '+' switches, replicates distinct 80's and 90's British gain stages. Comprehensive Bass, Middle, and Treble controls provide precise tonal shaping. The EQ 1 & 2 switch allows selection between modern midrange-emphasized and vintage British EQ profiles. Employ the unique AFTERBURNER switch and DRIVE control to emulate a post-phase inverter master, adding a further gain stage. A HIGH CUT control effectively manages high-frequency 'sizzle' for optimal high-gain performance, ensuring pristine tone across diverse playing styles.

                  
                                          
                        
Input Impedance
                        
1M Ohms
                      
                                          
                        
Output Impedance
                        
<100 Ohms
                      
                                          
                        
Input Connectors
                        
1/4" mono unbalanced (front & back)
                      
                                          
                        
Output Connectors
                        
1/4" mono unbalanced (line out & instrument out)
                      
                                          
                        
Tube Type
                        
12AX7EH
                      
                                          
                        
Power Consumption
                        
20 watts
                      
                                          
                        
Power Requirements
                        
100-120VAC at 1.0A, 220-240VAC at 0.05A
                      
                                          
                        
Form Factor
                        
1U Rackmount
                      
                                          
                        
Controls
                        
1-2 Input Switch, Tight Switch, Bright Control (6-position), Gain, Boost Switch, '+' Switch, Bass, Middle, Treble, EQ 1/2 Switch, Afterburner Switch, Drive, High Cut, Master
                      
                                          
                        
Tone Replication
                        
Vintage British 'Plexi' Amplifiers, 80s British Gain, 90s British Gain
                      
                                          
                        
Award Recognition
                        
2018 Guitar Player Editors' Pick Award