We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Black rectangular 9V AC adapter with barrel plug and wall prongs

myVolts

myVolts 9V AC adapter Roland PSB-1U compatible

SKU CH-JGA0-CHF1B

Powers Roland gear with a 9 V DC negative-centre supply accepting 100–240 V AC input

  • Works worldwide thanks to 100-240V AC input
  • Powers many Roland synths with 9V DC negative polarity
  • Replaces original PSB-1U and 120-series adapters
  • Compatible with GR-55 and GR-30 guitar synthesizers
  • Supports TD and V-Drum modules from TD-3 to TD-9

Replacement adapter for Roland gear

This 9 V DC supply replaces the Roland PSB‑1U and a long list of compatible part numbers. It powers synths, controllers and audio interfaces that require a 9 V negative‑polarity input. Musicians and studio owners can use it as a direct spare or a backup unit. The adapter is sold new and ready for immediate use.

Build quality and connector implications

The unit is built with materials tested to meet or exceed the original manufacturer specifications. A fixed barrel plug with negative polarity on the inner contact matches the Roland wiring convention exactly. The wide AC input range of 100 V to 240 V lets the adapter work on mains worldwide without a separate voltage selector. No user‑serviceable parts are exposed, so day‑to‑day handling stays simple.

Practical limits of the 9 V standard

The adapter delivers only the 9 V DC level required by the listed Roland devices; it cannot power equipment that needs a different voltage or polarity. Current capacity is defined by the original PSB‑1U design, so devices drawing more than that spec will not operate reliably. Users must verify that their specific model appears in the compatibility list before connecting.

Highlights

  • Works worldwide thanks to 100-240V AC input
  • Powers many Roland synths with 9V DC negative polarity
  • Replaces original PSB-1U and 120-series adapters
  • Compatible with GR-55 and GR-30 guitar synthesizers
  • Supports TD and V-Drum modules from TD-3 to TD-9

Specifications

No published specifications for this item yet.

Questions about this item

What input voltage range does the 9 V DC adapter accept?

The adapter accepts AC 100 V to 240 V input, making it suitable for worldwide mains supplies.

What connector polarity does the Roland-compatible plug use?

The DC plug is wired with negative polarity on the inner pin and positive on the outer sleeve.

How do you connect the adapter to a Roland device without reversing polarity?

Align the plug so the inner contact meets the device’s negative terminal, then push firmly until seated.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.