With the Valvenergy series Vox presents a series of differently tuned overdrive pedals with an analogue tube preamp. The VOX Valvenergy Copperhead Drive uses four Nutube tubes whose construction follows the structure of classic tube triodes and produces a warm sound rich in overtones with classic tube compression. In addition, there is a special OLED display that shows the waveform changes caused by the respective setting in real time. For professional applications in the studio and on stage, there are three switchable operating modes: Standard , Preamp and Cab Sim . Accordingly, standard guitar amps as well as power amps or interfaces can be connected without any problems. The VOX Valvenergy Copperhead Drive recreates classic full-stack sounds of 1980's hard rock and offers flexible sounds ranging from light crunch to a distorted gain monster. In addition to the 3-band equalizer , the Bright switch can call up additional treble reserves and skilfully lifts the sound off the band mix, especially for leads.