Crazy tube circuit Heatseeker Preamp

Do you fantasize about the sound of ACDC's legendary Powerage, Hihgway To Hell or Back In Black albums? Then the CRAZY TUBE CIRCUIT HI Heatseeker pedal just might live up to your expectations. We now know that the Young brothers' unstoppable saturations were achieved with various Marshall heads such as the JTM45, 1959 SLP 100 and Super Bass for Malcolm. Angus's secret weapon for more solo gain was a Schaffer-Vega Diversity System. Invented in the 1970s and used by many other rock stars of the time (Aerosmith, Black Sabbath, KISS, Van Halen...), its circuit embodied an analog preamp with the ability to boost the signal's dynamics, grain and harmonic content.
Thanks to a JFET circuit powered at 27 volts via an internal booster (don't use an adapter over 9V!), the Heatseeker reproduces three vintage Marshall amps (JTM45, 1959 Super Lead, JMP 2203) with great veracity, with the option of activating an enhanced version of the Schaffer system to supercharge your tones. The "WoS" (Wall of Sound) filter further exacerbates the bass precision, midrange thickness and projection that will make you feel as if you've got a wall of Marshalls at your back, plus an effects loop for integrating your favorite pedals.