The RockBoard Intelligent Voltage Converter converts an existing power source with an input voltage of 9 - 15 volts into a robust 18 volt DC output voltage and is therefore suitable for effects pedals that require a little more power.
Whether overdrive,
Thanks to the wide input range of 9 - 15 V (300 - 500 mA), it can be easily integrated into almost any existing setup. Simply connect it and the pedal gets exactly the voltage it needs.
Rockboard Intelligent Voltage Converter