The Truetone 1 Spot Pro CS12 pedalboard power brick can power virtually any combination of guitar effects pedals you can imagine. And its 12 power outlets are fully isolated to minimize noise in your rig. Four outputs are switchable between 9-volt and 12-volt operation, and a very cool variable output (4 volts to 9 volts) gives you extra tonal control over certain pedals - more on that below. We've helped countless guitarists design pedalboards here at Sweetwater, and the Truetone 1 Spot Pro CS12 pedalboard power supply is exactly the kind of solution we recommend for flexibility and reliability.