Roland PSB-120 Keyboard Power Supply 🔌

This Roland power adapter supplies 9V DC at 2000mA for electronic keyboards and small Roland instruments, making it a straightforward replacement when the original AC adapter is missing or damaged. It supports worldwide input from 100-240V AC at 50-60Hz, which helps when using compatible gear in different regions.

Key Points

The adapter matches the sleeve-positive, tip-negative configuration used on many Roland devices and is listed as an equivalent to PSB-1U. It replaces models such as ACB-120, ACF-120, ACK-120 and ACI-120 according to the original specifications. This makes it useful as a spare power supply for practice, home studio setups, or live gear racks where a reliable DC source is needed. Note that compatibility should be checked against your instrument's required polarity and amperage before connecting, as improper connections can cause damage.

Technical Specifications

• Name: Roland PSB-120 Power Supply
• Input Voltage Range: 100-240V AC, 50-60Hz
• Output Voltage: 9V DC
• Output Current: 2000mA
• Sleeve/Tip Configuration: Sleeve positive, tip/center negative

Usage Recommendations

Connect the adapter to a properly rated outlet and confirm the plug polarity and voltage match your instrument’s requirements. Avoid using the adapter with devices that need a different voltage or polarity. For portable gigging or international travel, its wide input range offers flexibility, although you may still need a local plug adapter depending on the wall socket. Keep the cord free from tight bends and high-traffic pinch points to prolong its life.

Limitations and Notes

This unit is meant as a power replacement and does not include further protections beyond what the manufacturer specifies, and it may not be covered under the original instrument warranty if non-Roland accessories are used. According to the manufacturer equivalency details, verify connector size and polarity before use to prevent incompatibility. 🔌 🎹