Roland PSA-120S 9 Volt AC Adapter
The PSA-120S 9 Volt AC Adapter is Roland’s recommended power supply for a wide range of BOSS and Roland gear, designed to keep today’s digital instruments running smoothly. With a robust 9 V DC output and ample current, it’s built to power multiple pedals and processors from a single reliable source.
Power that scales with your rig
Equipped to deliver up to 500 mA, the PSA-120S is ready to support several pedals at once, including modern digital effects and multi‑effects units. The extended cable—nearly 10 feet long—gives you versatile placement on stage or in the studio, helping you arrange your pedalboard without stretching for outlets.
An LED indicator provides quick, at-a-glance verification of on/off status, so you can confirm power without guessing between songs or takes.
The new design emphasizes practicality on busy setups: it won’t block adjacent outlets, leaving space for other gear on your power strip or wall outlet.
Compatible gear
- All new BOSS Compact and Twin pedals
- ME-50, ME-20, ME-20B Multi-effects
- DB-66, DB-88, DB-90 metronomes
- DR-Series drum machines
- FC-Series foot controllers
- MC-202, SH-101, SP-202, TR-626
- All TU-Series tuners
Specifications you can trust
- Input Voltage: AC 117 V (50 Hz/60 Hz)
- Output Voltage: DC 9 V
- Maximum Current Output: 500 mA
- Power Cable Length: nearly 10 feet
- Size: Width 27.8 mm (1-1/8 in) • Depth 43 mm (1-3/4 in) • Height 63 mm (2-1/2 in)
- Weight: 150 g (6 oz)
Practical use and benefits
Whether you’re performing live, recording, or practicing, the PSA-120S offers a dependable, straightforward power solution that minimizes clutter and keeps your signal clean. It’s especially advantageous for rigs with multiple pedals, digital units, or tuners that demand consistent current and a stable 9 V supply.
Tip: When expanding your pedalboard, monitor total current demand. The PSA-120S supports up to 500 mA, so plan your layout accordingly to ensure stable operation across all devices.