{"product_id":"boss-psa-120s2-9v-500ma-ac-power-adapter-for-guitar-effects-pedals","title":"BOSS PSA-120S2 9V 500mA AC Power Adapter for Guitar Effects Pedals","description":"\u003ch2\u003eBOSS PSA-120S2 9V 500mA AC Power Adapter for Effects Pedals\u003c\/h2\u003e\n\n\u003cp\u003eThe BOSS PSA-120S2 AC Power Adapter is a regulated 9V DC power supply designed for compatible BOSS guitar effects pedals, multi-effects processors, and electronic music equipment. Delivering up to 500mA with center-negative polarity, this compact adapter provides dependable external power for individual pedals or compatible multi-pedal configurations.\u003c\/p\u003e\n\n\u003cp\u003eDesigned for guitarists, bassists, and musicians using BOSS effects equipment, the PSA-120S2 provides a convenient alternative to disposable batteries. Its 500mA output supports many analog and digital effects pedals, including devices with higher current requirements than earlier 200mA PSA adapters could accommodate. Musicians can also power multiple compatible pedals using a separately available parallel DC distribution cable, provided their combined current consumption remains within the adapter's rated capacity. A compact wall-plug design helps preserve access to neighboring outlets on crowded power strips and pedalboard power setups.\u003c\/p\u003e\n\n\u003cp\u003eThe PSA-120S2 incorporates a blue LED power indicator and an attached 6.6-foot DC cable for flexible placement during rehearsals, recording sessions, and live performances. Its regulated output supports equipment requiring 9V DC with center-negative polarity. Roland identifies the PSA-S2 as a compatible successor to earlier PSA-S power supplies, with updated cable length and indicator characteristics. Before connecting equipment, confirm its voltage, polarity, connector compatibility, and current requirements.\u003c\/p\u003e\n\n\u003ch3\u003eKey Features\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eRegulated 9V DC Output:\u003c\/strong\u003e Supplies consistent external power to compatible BOSS pedals and electronic musical equipment requiring a center-negative 9V DC adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500mA Current Capacity:\u003c\/strong\u003e Supports compatible analog and digital effects pedals, including devices with greater power requirements than older 200mA adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Pedal Power Capability:\u003c\/strong\u003e Can supply several compatible effects pedals through an appropriate parallel DC cable when their combined current draw does not exceed 500mA.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBlue LED Power Indicator:\u003c\/strong\u003e Provides a convenient visual indication that the adapter is receiving power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e6.6-Foot Attached Cable:\u003c\/strong\u003e Offers flexible positioning between the AC outlet and connected equipment during studio sessions and performances.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSpace-Saving Wall-Plug Design:\u003c\/strong\u003e Reduces interference with neighboring AC outlets on compatible power strips and wall receptacles.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBroad BOSS Equipment Compatibility:\u003c\/strong\u003e Supports many BOSS Compact and Twin pedals, multi-effects units, tuners, metronomes, and other devices specifying a compatible PSA power supply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNorth American Configuration:\u003c\/strong\u003e Provides a compact AC plug arrangement suitable for compatible North American electrical outlets.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eRegulated 9V DC Power for BOSS Effects Pedals\u003c\/h3\u003e\n\n\u003cp\u003eThe BOSS PSA-120S2 converts AC wall power into regulated 9V DC for compatible guitar effects pedals and electronic music equipment. Its center-negative output configuration matches the requirements of many BOSS products designed to operate with PSA-series adapters.\u003c\/p\u003e\n\n\u003cp\u003eExternal power eliminates the need to replace batteries during normal operation. This is particularly useful for digital delays, modulation pedals, loopers, and other compatible devices used frequently during rehearsals and live performances.\u003c\/p\u003e\n\n\u003cp\u003eThe adapter delivers a maximum output current of 500mA. Connected equipment must use the correct voltage and polarity, and its total current requirements must remain within the adapter's rated capacity.\u003c\/p\u003e\n\n\u003ch3\u003e500mA Output for Analog and Digital Effects\u003c\/h3\u003e\n\n\u003cp\u003eThe PSA-120S2 provides 500mA of available current, accommodating compatible effects pedals with different power consumption requirements.\u003c\/p\u003e\n\n\u003cp\u003eEarlier PSA adapters were available with 200mA output capacities. The PSA-S2 series provides additional current for equipment that requires more than 200mA or for compatible multi-pedal arrangements.\u003c\/p\u003e\n\n\u003cp\u003eThe available current capacity does not mean that the adapter continuously delivers 500mA to every connected device. Compatible equipment draws the current necessary for operation, up to the power supply's maximum rating.\u003c\/p\u003e\n\n\u003ch3\u003ePower Multiple Guitar Pedals with Compatible Distribution Cables\u003c\/h3\u003e\n\n\u003cp\u003eThe BOSS PSA-120S2 can power multiple compatible effects pedals when used with an appropriate parallel DC distribution cable.\u003c\/p\u003e\n\n\u003cp\u003eThis configuration is useful for musicians building compact pedalboards or operating several low-current pedals from a single AC outlet.\u003c\/p\u003e\n\n\u003cp\u003eWhen powering multiple devices, the combined current draw must not exceed 500mA. Every connected pedal must also support the adapter's regulated 9V DC output and center-negative polarity.\u003c\/p\u003e\n\n\u003cp\u003eParallel distribution cables are separate accessories and are not included with the adapter.\u003c\/p\u003e\n\n\u003ch3\u003eCompact Plug Design with Blue LED Indicator\u003c\/h3\u003e\n\n\u003cp\u003eThe PSA-120S2 features a compact AC plug housing designed to reduce interference with neighboring outlets.\u003c\/p\u003e\n\n\u003cp\u003eThis configuration is particularly convenient when using crowded power strips, pedalboard power arrangements, or recording workstations with several connected devices.\u003c\/p\u003e\n\n\u003cp\u003eAn integrated blue LED provides a quick visual indication that the power supply is receiving electricity. The indicator helps musicians check the adapter's power status during setup and troubleshooting.\u003c\/p\u003e\n\n\u003cp\u003eRoland identifies the blue indicator as a distinguishing characteristic of PSA-S2 adapters compared with earlier PSA-S models, which use green indicators.\u003c\/p\u003e\n\n\u003ch3\u003e6.6-Foot Attached Power Cable\u003c\/h3\u003e\n\n\u003cp\u003eThe PSA-120S2 includes an attached DC output cable measuring approximately 6.6 feet.\u003c\/p\u003e\n\n\u003cp\u003eThis length allows musicians to position compatible equipment away from the AC outlet without immediately requiring an extension cable.\u003c\/p\u003e\n\n\u003cp\u003eThe permanently attached cable also eliminates the need for a separate DC output lead during normal operation.\u003c\/p\u003e\n\n\u003cp\u003eThe PSA-S2 cable measures approximately 2 meters, distinguishing it from earlier PSA-S adapters that feature longer 3-meter cables.\u003c\/p\u003e\n\n\u003ch3\u003eCompatible BOSS Pedals and Electronic Music Equipment\u003c\/h3\u003e\n\n\u003cp\u003eThe PSA series is recommended for many BOSS Compact and Twin effects pedals, selected multi-effects processors, tuners, metronomes, and other electronic music devices.\u003c\/p\u003e\n\n\u003cp\u003eExamples of equipment families associated with PSA-series compatibility include:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOSS Compact Effects Pedals:\u003c\/strong\u003e Compatible distortion, overdrive, delay, modulation, and other effects pedals specifying PSA power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOSS Twin Pedals:\u003c\/strong\u003e Supported dual-pedal effects units requiring compatible 9V DC external power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOSS Multi-Effects Processors:\u003c\/strong\u003e Selected ME-series processors designed for PSA-series adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOSS Metronomes:\u003c\/strong\u003e Selected DB-series devices, including compatible DB-66, DB-88, and DB-90 models.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOSS Drum Machines:\u003c\/strong\u003e Selected DR-series products specifying compatible PSA adapters.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBOSS Tuners:\u003c\/strong\u003e Compatible TU-series tuning equipment requiring external 9V DC power.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRoland Electronic Instruments:\u003c\/strong\u003e Selected instruments and controllers that explicitly specify compatible PSA-series power supplies.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eCompatibility must be confirmed using the individual device's power requirements. Not every product within these equipment families uses the same adapter.\u003c\/p\u003e\n\n\u003ch3\u003ePSA-S2 Power Supply Design\u003c\/h3\u003e\n\n\u003cp\u003eThe PSA-120S2 belongs to the 500mA PSA-S2 adapter family. It retains the regulated 9V DC output associated with compatible earlier PSA-S power supplies.\u003c\/p\u003e\n\n\u003cp\u003eRoland identifies two principal differences between the PSA-S and PSA-S2 generations: the newer version uses a shorter cable and a blue rather than green power indicator.\u003c\/p\u003e\n\n\u003cp\u003eThe PSA-120S2 is a practical replacement option for compatible equipment requiring the earlier PSA-S adapter, provided the electrical and connector specifications match.\u003c\/p\u003e\n\n\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\n\n\u003ch4\u003eGeneral Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer:\u003c\/strong\u003e BOSS\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer Corporation:\u003c\/strong\u003e Roland Corporation\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eModel:\u003c\/strong\u003e PSA-120S2\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Series:\u003c\/strong\u003e PSA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eProduct Type:\u003c\/strong\u003e AC\/DC Power Adapter\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePrimary Application:\u003c\/strong\u003e Guitar Effects Pedals and Compatible Electronic Music Equipment\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Supply Configuration:\u003c\/strong\u003e Wall-Plug Adapter with Attached DC Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdapter Color:\u003c\/strong\u003e Black\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eElectrical Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Input Voltage Range:\u003c\/strong\u003e 100-240V AC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInput Frequency:\u003c\/strong\u003e 50\/60 Hz\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eNominal Regional Power Configuration:\u003c\/strong\u003e 120V AC, North America\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Output Voltage:\u003c\/strong\u003e 9V DC\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutput Regulation:\u003c\/strong\u003e Regulated\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Output Current:\u003c\/strong\u003e 500mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Rated DC Output Power:\u003c\/strong\u003e 4.5 W\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Output Polarity:\u003c\/strong\u003e Center Negative, Outer Positive\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Indicator:\u003c\/strong\u003e LED\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePower Indicator Color:\u003c\/strong\u003e Blue\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eCable and Connector Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Output Connection:\u003c\/strong\u003e Attached Cable with DC Power Connector\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Cable Length:\u003c\/strong\u003e Approximately 6.6 ft\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDC Connector Polarity:\u003c\/strong\u003e Center Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAC Plug Configuration:\u003c\/strong\u003e North American Wall-Plug Design\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eOutlet-Saving Design:\u003c\/strong\u003e Compact Housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eCompatibility Specifications\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible Equipment Type:\u003c\/strong\u003e Devices Requiring Regulated 9V DC Power\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRequired Device Polarity:\u003c\/strong\u003e Center Negative\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Supported Current Draw:\u003c\/strong\u003e 500mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCompatible BOSS Product Families:\u003c\/strong\u003e Selected Compact Pedals, Twin Pedals, Multi-Effects, Tuners, and Metronomes\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMulti-Pedal Operation:\u003c\/strong\u003e Supported with Compatible Parallel DC Distribution Cable\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMaximum Combined Pedal Current:\u003c\/strong\u003e 500mA\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePSA-S Replacement Compatibility:\u003c\/strong\u003e Supported for Electrically Compatible Devices\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat's in the Box\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e1 x BOSS PSA-120S2 AC Power Adapter with Attached DC Cable\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Boss","offers":[{"title":"Default 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