ESS Premieres the New ES9028 SABRE Mobile DAC & ES9603 Headphone Amplifier

New Vivo X6 Plus Smartphone Debuts the Next Generation of Industry Leading Mobile SABRE Technology for Discerning Audiophiles

Milpitas, California – ESS Technology today announced the next generation SABRE Digital to Analog Converter (DAC), the ES9028, featuring a new Dual-DAC architecture, and the new ES9603 Headphone Amplifier. These new products are designed specifically for HiFi audio enabled smartphones.  Earlier today Vivo announced that the first smartphone to feature the newest members of the SABRE family is the highly anticipated X6 Plus. This new flagship smartphone is available immediately through Vivo’s ecommerce channels and 

“Vivo is very pleased to feature the ES9028 SABRE DAC and ES9603 Headphone Amplifier in our new flagship smartphone – the X6 Plus. ESS has achieved a dedicated following with true audiophiles by consistently delivering a dramatically better listening experience,” said Mr. Feng Lei, CMO and Vice President Worldwide for Vivo. “It is natural for us to partner with ESS as Vivo continues to lead the smartphone audio revolution.”

“Working with Vivo to premiere our newest SABRE products is an honor. Our number one goal as a company is to deliver the best audio experience across all platforms, but particularly in the growing HiFi smartphone space,” said Dan Christman, ESS’s Chief Marketing Officer. “Since their inception, Smartphones have compromised on audio quality. Vivo has pioneered the true HiFi audio experience for smartphone users and we are excited to work with them on the introduction of our new SABRE ES9028 and ES9603 in the X6 Plus.” 

The ES9028 SABRE DAC is a high-performance 32-bit digital to analog converter and uses ESS’s patented 32-bit Hyperstream architecture and Time Domain Jitter Eliminator. It is the first SABRE DAC to use our new Dual-DAC architecture to further enhance performance.  It also delivers an unprecedented dynamic range (DNR) of up to 129dB and total harmonic distortion plus noise of -120dB (THD+N) – a performance level that will satisfy the most demanding audio enthusiasts. All SABRE Headphone Amplifiers offer ultra low noise with high gain. The ES9603 Headphone Amplifier supports a DNR of up to 122dB and THD+N of -117dB with 600ohm loads. Additionally, it implements a unique programmable feature that can improve THD+N with 32ohm loads to -112dB in Best Performance mode. 

About ESS Technology

For more than three decades ESS Technology has been on the cutting edge of audio technology. A privately held fabless semiconductor company, ESS Technology designs and markets high-performance analog and HiFi audio devices for mobile, consumer, automotive, and professional audiophile systems. The company was founded in 1984 and today ESS Technology is best known for its SABRE series of high-performance audio products. For more information visit


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