PettyJohn PreDrive Studio Guitar Pedal - PettyJohn re-released it PreDrive Studio pedal which has a blurry line between studio pre-amp and guitar pedal. I think the possibility of going right from guitar to PA or ProTools is pretty incredible. Powered by two Studio Grade Discrete Opamps, the PreDrive Studio builds on the original PreDrive and LIFT pedal offerings, now featuring even more gain on tap, extended filter range, high headroom, dual power rail design with 9V-18V standard pedal power operation and a whole slew of circuit optimizations along with improved, robust construction. Most notably, The PreDrive Studio now offers fully balanced In and Out connections via TRS, along with standard un-balanced connections for instruments, making the PreDrive Studio the ultimate studio Swiss army knife. The PreDrive Studio Input can be selected as standard unbalanced for instruments or switched to a line level balanced input that readily excepts any balanced signal from your interface, patch bay, recording console, or even microphone! The balanced output continuously mirrors the unbalanced output without any tonal change, very handy in a number of creative studio applications. With the PreDrive Studio, you can easily and seamlessly interface between the unbalanced world of instruments and pedals and the balanced world of recording equipment. The PreDrive can be used as a powerful and flexible re-amping tool, however, the options only start there with many more to choose from! You can easily interface a variety of guitar pedals into your mixing path, process line or microphone signals with pedals without quality degradation, re-amp or simply use it as a audiophile grade direct box.