D2Audio Breaks Technology Barrier by Introducing World's Only Real-Time, All-Digital Feedback Amplifier

AUSTIN, Texas—(BUSINESS WIRE)—Jan. 6, 2006— D2Audio, the world's only manufacturer of Intelligent Digital Amplifiers(TM), today introduced the world's first and only full-bandwidth, real-time, all-digital feedback amplifier. This powerful new closed-loop amplifier breakthrough, which will serve as D2Audio's revolutionary 2nd generation Digital Audio Engine(TM) (DAE) IC platform, achieves a higher level of audio quality than previously possible by constantly and automatically correcting the audio amplifier signal using a new breakthrough in closed-loop technology.

D2Audio's digital feedback amplifier technology delivers premium sound to consumers by continually adjusting and optimizing the audio signal to correct for fluctuations within the audio system, or due to the speaker load. It also gives audio manufacturers an intelligent digital amplifier system with automatic fine tuning that even compensates for changes induced by very low-cost, unregulated power supplies.

This new real-time DSP-controlled all-digital amplifier feedback technology expands upon D2Audio's first generation DAE-1 technologies, creating a new family of application optimized ICs known as the Digital Audio Engine DAE-2 IC platforms. The new DAE-2 IC platforms integrate a collection of industry leading capabilities and breakthrough technologies, including both full-bandwidth digital feedback (DF) and an advanced feed-forward or digital power supply correction (DPSC) capability.

News of D2Audio's new real-time, all-digital feedback amplifier DAE-2 IC platform is likely to stun the industry, since as recently as the October 2005 Audio Engineering Society panel on Switching Amplifiers for High Resolution Audio, industry players deemed real-time feedback impossible in digital amplifiers.

"This advancement further distinguishes D2Audio as a significant leader in both innovation and technology for digital amplification and audio processing," said Will Strauss, President and Principal Analyst of Forward Concepts, a marketing research firm that focuses primarily on digital signal processing and related vertical markets. "The sound quality and performance achieved with their full bandwidth feedback combined with D2Audio's other unique capabilities finally enable the industry's transition from traditional analog amplifiers into the all-digital age."

"Closed loop technology has long been coveted for its robustness in dynamic and challenging audio applications, and for its ability to achieve performance that is not possible in open-loop implementations, but was thought impossible to achieve by industry experts," said Dr. Skip Taylor, founder and Chief Technology Officer of D2Audio. "Our new DAE-2 products prove it can be done, and the results are substantial."

"The new DAE-2 technology is very compelling from a cost/performance standpoint," explains Brian Wong, CEO and president of D2Audio. "It delivers high-end analog amplifier performance and sound quality, while lowering overall system costs."

D2Audio's DAE-2 IC family, which are all RoHS compliant, will initially launch with a family of 3 products: D2-91413-LR, D2-91413-LR and D2-91433-LR, targeting A/V Receivers, multi-channel amplifiers and automotive applications. These first DAE-2 IC platforms feature the following:

-- Advanced closed loop amplifier implementations

-- Advanced Digital Power Supply Correction (DPSC)

-- Adaptive sample rate conversion, supporting most audio signal interfaces

-- Embedded Digital Signal Processing (DSP)

-- Scalable power and performance solutions

-- D2Audio(R) SoundSuite(TM) of immersive audio processing capabilities

The three new IC products are supported with comprehensive amplifier reference design platform packages. The new DAE-2 family provides the lowest cost per watt for high volume AV receiver markets, with fast time to market and manufacturing/design flexibility.

D2Audio Intelligent Digital Amplifiers

The D2Audio Corporation, maker of the world's only intelligent digital audio amplifiers, supplies a full line of cost efficient, powerful, multi-channel amplifier solutions with market leading performance and superior sound quality for consumer, professional, and automotive industries. The patented D2Audio(R) Intelligent Digital Amplifier(TM) technologies, now with D2Audio(R) SoundSuite(TM), deliver an immersive audio experience on the D2Audio(R) Digital Audio Engine(TM) (DAE) IC platforms. For more information on D2Audio and its products, please visit www.d2audio.com.



Contact:
D2Audio Corporation, Austin
Anne Birlin, 512-695-5851

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