After extensive testing for both noise, stability and reliability we have pleasure in recommending the Voodoo Lab Pedal Power 2 Plus as being suitable for powering our range of stand alone pedals - particularly when multiple effects are in use. The isolated outputs of the Pedal Power 2 Plus prevent the occurrence of ground loops and the noise level is too low to measure. 
-Pete Cornish

AMAZING TONE STARTS WITH PEDAL POWER!

Filter, regulate, isolate, and protect! Pedal Power® 2 Plus does it, and does it well, because any less will degrade your pedal’s performance. Players everywhere upgrade to Pedal Power 2 Plus because it powers what conventional power supplies can’t. Pedal Power 2 Plus is hand made in the U.S.A., comes complete with cables, detachable AC power cord, a 5-year warranty, and simply makes you sound better!

 I’ve wrestled with various store-bought and custom-made power supplies over the years, but this was the first time I was able to connect everything in minutes and get great results without hum or profanity. 
-Guitar Player Magazine

Isolation is more than fixing ground loops.
Ground loops cause hum, and the solution is to break the unwanted ground path. Isolation is the best way to do it. Unlike other power supplies, Pedal Power 2 Plus isolates EVERY output. This eliminates tone robbing interaction between units. Now you can properly power everything from vintage overdrives to modern digital marvels that others just can’t!
       
Proprietary balanced transformer makes it possible.
A typical transformer, like those used in a wall wart, creates a large magnetic field that causes hum in any audio path near it. Pedal Power 2 Plus uses a custom designed, ultra-low noise toroidal transformer, with separate balanced windings for every output. Now even the most sensitive pedals can be dead quiet.

Switching power supplies aren’t for everything.
What’s good for charging a cell phone is NOT good for your pedals. While digital switching power supplies are small and inexpensive, they also generate unpredictable transients and extraneous noise. Pedal Power 2 Plus uses an audiophile quality linear supply for consistently stable, clean, pure power.

9/12V (x4) – Standard 9V and 12V Boss ACA 
With each one of these four outputs delivering 100mA, you can easily power any 9V battery-operated pedals. Boss pedals that specify the PSA adapter operate at 9V like most other pedals. Boss pedals that require the ACA adapter operate at 12V which can be selected via switches underneath the Pedal Power 2 Plus. Any one of these outputs can be individually selected to run at 9V or 12V. 

9V (x2) – High Current 9V and Line 6 Modelers 
These two outputs each deliver 250mA allowing you to run high current draw effects like the Boss DD-20 Giga Delay or Line 6 DL4 Delay Modeler. Via switches underneath the Pedal Power 2 Plus, these two outputs can be separately configured for regulated (Boss Twin Pedals) or unregulated (Line 6 Modelers) power allowing you to run both units if so desired. These outputs can also power any standard 9V effects as well.   

9V (x2) – Standard 9V With Battery Sag Control
These outputs each have an available 100mA of power, but also allow you to SAG the voltage from roughly 4V to 9V. This feature can be enabled via the bottom panel switches. The SAG control is mostly useful for transistor-based fuzz, octavia, and distortion circuits, as most modern opamp designs are minimally affected by variations in supply voltage. We recommend turning SAG off if you’re going to run digital pedals like delay, chorus, and reverb.

18V/24V – Using Custom Cables 
All of the outputs on the Pedal Power 2 Plus (and the original Pedal Power) are completely isolated allowing you to create different voltages. You can run effects like the current MXR Flanger by combining two 9V outputs to create a single 18V supply. By switching two outputs into 12V ACA mode, you can join them together to create a 24V output for powering numerous Electro-Harmonix stompboxes including the Deluxe Memory Man. 

Important!
Pedal Power 2 Plus is manufactured to operate from a specific supply voltage. There are three different models, which accept 100V, 120V, or 240V mains. All units sold in North America are for 120V only. You cannot operate a 120V Pedal Power using 240V power without the correct step down transformer. The supply voltage is marked on the bottom of the unit.

Short Circuit Protection 
Each output on the Pedal Power 2 Plus is short-circuit protected. This means that if you have a short in a power cable, or one of your pedals malfunctions, PP 2 Plus will temporarily turn off the power to that pedal. All other outputs will continue to function normally with no long-term damage.