Item # 104781059 | Customer Ratings: ( 4 Based on 25 reviews)

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9.6V 500 mA AC adapter for BOSS units with outlet-saving design.

The Boss PSA-120S Adapter is specially designed to provide perfect power to all Boss metronomes, tuners, and compact pedals. Power cable length has been increased to almost 10 feet for more versatility, and the PSA-120S now features LED indicator for quick visual verification of on/off status. Newly redesigned plug does not cover adjacent power outlets. 9.6V DC 500mA, barrel connector, reverse polarity.

The PSA-120S is the recommended power supply for products including BOSS Compact and Twin pedals, ME-50/-20/-20B Multi-effects, the DB-66/-88/-90 metronomes, DR-Series drum machines, FC-Series foot controllers, MC-202, SH-101, SP-202, TR-626, and all TU-Series tuners.

Boss PSA-120S ADAPTER Features:

  • New generation power supply for today's digital instruments
    500 mA of current to easily power multiple pedals, even digital ones
    Power cable length is increased to almost 10 feet
    LED indicator for quick visual verification of on/off status
    New design that does not cover adjacent power outlets


Boss pedals - 5 year parts warranty
90 day labor warranty.
1 year warranty - Multitracks, Jamstations, etc.
Check with manufacturer for specific product warranty.

Get your gear covered!

Now you can get added warranty protection for your new gear. Pro Coverage steps in where the manufacturer's "normal wear and tear" ends. Our PRO COVERAGE program offers you UPGRADED COVERAGE if your product ever fails!

Pro Coverage includes:

  • Accidental damage protection (new gear only)
  • Expedited Repair
  • Free Shipping (for returns or repairs)
  • 100% Coverage for Commercial Use
  • Extended Return Period
  • Extended Price Protection
  • No Lemon Guarantee
  • Free Transfer of Coverage to a new owner
  • Repair Costs Covered for up to 3 years from date of purchase
  • Repairs Can Be Authorized Toll-Free by Phone or the via the web
Product Reviews
(Based on 25 reviews)
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Viewing Reviews 1 - 3 of 25 |
  • Best adapter

    As reviewed by Rai on 9/15/2008

    This is the best adapter I've ever used by far. It has much power. I use it power my Boss GE-7 Equalizer. I recommend this for any pedalboard

    19 of 19 people found this review helpful.
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  • A Must-Have!

    As reviewed by Rob on 4/18/2009

    The PSA-120S adapter is a must have unless you have a room full of batteries ready to go. I bought this for my Boss ME-70 Multi-Effects unit and it has been a lifesaver. No issues as far as heat goes and no problems with continuous power.

    17 of 17 people found this review helpful.
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  • Adapter

    As reviewed by JG on 11/2/2009

    This unit is a space saver for those of us that need to use more than one input on an extension cord.

    3 of 3 people found this review helpful.
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Questions about the PSA-120S ADAPTER (104781059)

PO Box 4769
Westlake Village, CA 91359
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