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Roland PSA-120S 9V 500mA Power Supply

9-volt, 500mA AC Power Supply for BOSS and Roland Effects
61 Write review Item ID: PSA120S
$29.99

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Roland PSA-120S 9V 500mA Power Supply
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Get the right BOSS Power Supply!

The Roland/BOSS PSA-120 adapter converts AC wall current to 9 volts DC current. If you want to save money on batteries and ensure stable performance gig after gig, the BOSS PSA-120 adapter is the recommended power supply unit for products including many BOSS compact pedals, the DB-66/88 metronomes, FC-Series foot controllers, MC-202, SH-101, SP-202, TR-626, and all TU-Series tuners. Capable of powering any BOSS effect pedal, the Roland/BOSS PSA-120 can also power equipment with digital circuitry.

Related Videos: PSA-120S 9V 500mA Power Supply

Roland/BOSS PSA-120 Features
  • Capable of powering any BOSS effect pedal, including those with digital circuitry.
  • Converts AC wall current to 9 volts DC current. Power supply designed to operate a multitude of BOSS and Roland products.
  • Regulated with a higher milliamp rating for use with digital equipment.
  • Output: DC9V (regulated), 500mA
  • Tip negative, sleeve positive
  • 3-meter cable
  • Status light that flashes if there are grounding problems
  • Small footprint (similar to a cell phone charger)
For consistent effects pedal performance night after night, gig after gig, choose the Roland/BOSS PSA-120 AC adapter!
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Tech Specs

  • Type: Roland/BOSS Power Adapter
  • Input Voltage Range: 100-240V AC, 50-60Hz
  • Output Voltage: 9V DC
  • Output Amps: 500mA
  • Polarity: Sleeve: Positive, Tip/Center: Negative
  • Compatibility: Roland/BOSS devices
  • Manufacturer Part Number: PSA-120S2

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Customer Reviews

4.5 out of 5

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Powers my original Roland SH-101

I have an original Roland SH-101 synthesizer from the 80's. Loaned it to a friend years ago and finally got it back. ;). The batteries were left inside the unit and the acid leaked inside and the original power adapter was long gone. Be careful loaning instruments out... just saying.
Like most musicians, I have a bag full of old wall worst and power adapters, none of them would power my SH-101.
I researched the SH-101 and saw this power adapter mentioned. I ordered it from Sweetwater and just got it today. Plugged it into my SH-101 and it came right on! I'm thrilled!
This little adapter does just what it's supposed to do, nothing fancy just good clean power.
by Micvhael Walters from West Peoria, IL on
Music background: Home studio, recording musician.

Yay! No buzz! Clean!

I love it! Works great with no buzz in my amp! (Fishman Loudbox Artist ) I would buy another for sure! Thank you Sweetwater for the alternate choices!
by Emele Clothier from Winthrop, WA on
Music background: professional musician for over 50 years

A Must Have Item

I recently ordered BOSS Tuner and Chorus pedals. Both units run off either a 9V battery, or a 9V AC power supply (they do not come with the power supply). I also have MXR and Behringer pedals that also all run off 9V battery or AC power supply. I purchased the Roland PSA-120S 9V Power Supply, and it works great to power all of my pedals. I have had no issues with this power supply. I have read some reviews of claims of feedback from the power supply, but I have never had any feedback from mine.

I also ordered and an optional BOSS PCS-20A Parallel DC Daisy-Chain Cable to fix my power supply issues. I power my BOSS TU-3 Tuner with the Roland AC power supply, then power the rest of my pedals using the BOSS Daisy-Chain off the power out slot on the tuner. The daisy-chain makes it possible to power all my pedals with the one AC power supply.

As with any Boss or Roland products I have purchased or used, I have never had any issues with their design, easy of use, quality and performance.
by Dan Reigstad from LONGVIEW, TX on

Works great

Works great
by Travis Tad Russell from Rogersville, TN on

works great

fast shipping and does the job.
by Brian Whittaker from SPANISH FORK, UT on

Simply put, modern electronic music wouldn't exist without Roland. Many of the electronic musicians here at Sweetwater cut our teeth on TR Rhythm machines and fondly remember programming our first TB-303s. We owe a good part of our careers to this amazing and innovative company. It's been fun to watch and grow right alongside Roland, as they've introduced wave after wave of revolutionary keyboards, digital pianos, and more. For example, Roland's V-Drum Kits continuously redefine the possibilities of electronic drums, beginning with SuperNATURAL technology to the latest Prismatic Sound Modeling. We're huge fans, and we'd love to tell you all about them. Whether you want a pocket-sized synth or a cutting-edge video mixer, if Roland makes it, then Sweetwater is 100% behind it.

See also: Pedal board Power Supplies, Roland, Roland Power Supplies, Roland Pedalboard Power Supplies
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