Friedman Motor City DriveMany pedals strive to emulate the tone and signal path of a tube using solid state or digital circuitry. The Friedman Motor City Drive has an actual high voltage (220 volt) driven 12AX7A preamp tube. The result is a true natural feeling pedal, unlike any solid state signal path pedal in production. The 12AX7 naturally compresses, clips and adds more harmonically rich tone than most transistor or digital devices. Named after Dave Friedman's home town,