2025

• New Product Released : 2 Channel Compact One-chip Digital Amplifier IC (UB6352), 2 Channel PWM Modulator IC (UB2120)

2024

• Development Completed : 2 Channel Compact One-chip Digital Amplifier IC, 2 Channel PWM Modulator IC
• Mass-production Accumulation : One-chip Digital Amplifier IC 53M, PWM Modulator IC 23M Achieved

2019

• Patent (KOR) “Apparatus and Method of Dynamic Boost Audio Signal Processing”
  
• 2 Channel High-end One-chip Digital Amplifier IC Build
  

2017

• 4 Channel PWM Modulator IC Mass-production (UB2124)
  
• 2 Channel One-chip Digital Amplifier IC Mass-production (UB6470)
  

2013

• 2 Channel One-chip Digital Amplifier IC Mass-production (UB6510)
  

2012

• 8 Channel PWM Modulator IC Mass-production (UB2130)
  

2010

• Patent (USA) “Method and Apparatus for Pulse Width Modulation in a Switching Amplifier”
  

2009

• 2.1 Channel PWM Modulator IC Mass-production
  

2008

• Mobile Digital Audio CODEC IC Build
  

2006

• Patent (KOR) “A Headphone Driver and the Driving method for the Driver”
  

2004

• UBI Sound established (CEO: Sang Jin Park)