PSA-120S: Specifications April 27, 2023 07:00 Updated Follow BOSS PSA-120S Input: AC 100V-240V/50-60Hz 4.5W Output: 9V regulated DC 0.5A pin [center] = negative Related articles BOSS PSA adaptor: Specification Differences by Model BOSS PSA Adaptor: What is the difference between PSA-S and PSA-S2? PSA-120T: Specifications Powering Multiple Effects Pedals BOSS ACCESSORIES: The difference between the PSA series and the ACA series