AC adapter for audio equipment

Power supplies used in musical instrumentProducts are subject to numerous requirements. Among them, the most important considerations are countermeasures against "acoustic noise" and "buzzing noise." Our company develops, manufactures, and sells various types of power supplies for musical instruments, ranging from those for small speakers to larger ones for digital pianos. We can modify a wide range of Products, including those that comply with the upcoming IEC62368 safety standard, to suit your needs, or develop new ones in a short time frame.

Applications and Features

Digital pianos, synthesizers, keyboards, amplifiers, speakers, etc.

  • Electrical characteristics: Input voltage 90~264V / Output voltage 15V/3A, 15V/4A, etc.
  • Applicable safety standards: CB, CE, PSE, UL, etc. based on IEC62368 and IEC60065

* Power supply for audio equipment; specifications to counter special noise from instruments, OCP value settings, etc.,
may not be supported by standard IEC60065/62368 compliant products.

Diagram of digital piano, synthesizer, keyboard, amplifier, speaker

Customization (Modification) Examples

  • Implementation of specifications with low-frequency audio noise reduction.
  • Compliance with European ErP directive Lot 7 and COC Tier 2 efficiency standards.
  • Achievement of 6dB margin in noise terminal voltage & noise electric field strength when connected to the equipment.
  • Achievement of 12dB margin under resistive load conditions.
  • Support for long life span.

Diagram of customization (modification) examples

AC adapter for audio equipmentProducts example