The Doubler is modeled after the famous Octavia effect and Tychobrahe Ocatavio, and features custom made transformer and hand select parts for the best sound quality, The Doubler is also NPN -that's negative ground circuitry so it works better with NPN-negative ground pedals, it is considered one of the best sounded Octavia clones out there.
This octave fuzz is lightly used and ships safely and swiftly! Feel free to call us with any questions you have about this pedal.