Nuvoton Technology Corporation announced the launch of the NAU83G60YG stereo smart audio amplifier integrating Klippel Controlled Sound (KCS) nonlinear adaptive speaker control technology developed by Klippel GmbH. The NAU83G60YG is designed for conference speakerphones, smart speakers, professional monitoring speakers, and automotive audio systems. By leveraging advanced nonlinear speaker control technology, the amplifier delivers low distortion, high output power, and ultra low latency audio processing, enabling clearer voice communication and enhanced low-frequency performance for next generation audio applications.
Targeting voice communication devices, compact multimedia speakers and studio monitors
The impressive distortion reduction provided by NAU83G60YG with KCS enables unsurpassed clarity of bidirectional voice communication in conferencing speakers and soundbars. This advantage is strengthened even further by the linearized reference signal from NAU83G60YG that provides best learning conditions for Active Echo Cancellation (AEC) algorithms. It leads to faster and more consistent convergence with less artifacts. Compact multimedia speakers as well as studio monitors profit from additional dynamics (bass and SPL) for a more enjoyable and consistent listening experience.
How Does Nuvoton’s New Smart Amplifier Improve Audio Performance?
“We are excited to collaborate with Klippel on this innovative stereo smart amplifier solution. Compared with traditional smart amplifier designs based on linear models, the NAU83G60YG enables smaller speakers to achieve higher sound quality and maximum output performance. It supports precise speaker protection and real-time speaker diagnostics while significantly simplifying speaker tuning processes. In addition, it enhances barge-in AEC performance and enables low-latency Active Noise Cancellation (ANC) applications for next-generation smart audio systems.” said Walter Tseng, Vice President of Microcontroller Business Group at Nuvoton Technology Corporation.
“The release of the NAU83G60YG today is good news for audio designers. It makes KCS technology accessible in the highly relevant power range of up to 30 W. This is a significant milestone for Klippel GmbH in fulfilling the vision of our founder, Dr. Wolfgang Klippel: providing the entire audio industry with innovative tools that push the boundaries of audio performance. We are grateful for our trusted, long-term cooperation with Nuvoton, whose support has helped bring this achievement to life.” said Benjamin Barth, CEO of Klippel GmbH.
Revolutionizing Audio: KCS (Klippel Controlled Sound) Advantage
Loudspeakers are inherently highly nonlinear and time-varying systems. Signal distortion, thermal effects, instabilities, aging, and environmental conditions have traditionally limited maximum sound pressure levels and overall sound quality.
Compared with conventional amplifiers and smart amplifiers based on linear speaker models, the KCS algorithm offers superior performance with more bass, cleaner sound, and inherent operational stability. Its adaptive nonlinear speaker control technology provides active compensation of speaker distortion, balances operational instabilities, offers superior accuracy of mechanical and thermal protection to avoid overload situations, features automatic adaptive system alignment for unrivaled consistency, and adds voice-coil resting position control for maximum coil travel. These capabilities significantly improve loudspeaker performance and sound quality.
Key Advantages of KCS Technology
- Wider voice-coil excursion capability for greater acoustic output with superior overload protection
- Significant reduction of harmonic and intermodulation distortion for improved sound quality
- Enhanced Acoustic Echo Cancellation (AEC) performance by minimizing loudspeaker distortion and improving barge-in AEC operation under linear and time-invariant acoustic conditions
- Improved voice interaction experience through more accurate wake-word detection for AI-enabled
smart speakers - Support for ultra-low-latency audio processing, ideal for high-performance Active Noise
Cancellation (ANC) systems
NAU83G60YG Stereo Smart Amplifier Specifications
The NAU83G60YG adopts a high-performance Class-D amplifier architecture supporting an operating voltage range from 8V to 24V and reliable operation across an industrial temperature range of -40°C to +85°C. The device integrates IV Sense (current and voltage sensing) ADCs and a high-performance DSP engine. It supports multiple digital audio interfaces, including I²S, PCM, and TDM, while integrating multi-band PEQ, DRC, and low-latency audio processing capabilities for optimized voice performance. The device delivers up to 2 × 30 W into 4 Ω loads and 2 × 20 W into 8 Ω loads with a 24 V supply.
