Detail 01
2.1mm tip-negative power input
The adapter is intended for pedals with that power-input format.

Independent shopping perspective
Keep this D'Addario 9V adapter on hand for effects pedals with a 2.1mm tip-negative power input. It replaces the need to open a compatible pedal just to install or change a battery, and it can provide emergency or temporary power when needed. It also has a practical troubleshooting role: isolate power to one pedal at a time when tracking down pedalboard noise. That makes it useful at home, in the studio, and during live work.


Strong match
Consider the trade-offs
What matters in use
Catalog numbers tell only part of the story. These are the details most likely to change how this product feels, sounds, or fits into a setup.

Detail 01
The adapter is intended for pedals with that power-input format.
Final check
Product questions
Straight answers to the questions shoppers most often ask about this product.
It is for pedals using a 2.1mm tip-negative power input.
Yes. It lets you isolate power to one pedal at a time as a diagnostic step.
Yes. The adapter can power compatible pedals without internal battery connections.