Wren and Cuff Two-Five Drive 25v OD/Boost25 volt overdrive boost from a standard 9v power supply. A electric kick to the head, the Two Five pedal will provide an organic smooth grind and enough headroom for an elephant. An ultra quiet noise floor provided by the LM358 high voltage tolerant dual FET op amp is fed by 25v internally charged up from a regular old effects pedal supply. So is the "25v" thing a big gimmick? No. Have you ever run a 9v drive pedal at 18v? The sound is more open,