News Release

- Premium Audio News -

Premium DAC AK4497EQ featured in A&ultima SP1000

Iriver’s Portable Audio Player, the A&ultima SP1000 uses AKM’s Premium D/A Converter the AK4497EQ

A&ultima SP1000

Asahi Kasei Microdevices Corporation's (AKM) premium audio DAC: the AK4497EQ has been adopted in iriver’s new portable audio player, the A&ultima SP1000 released on May 17, 2017.
The latest AK4497EQ dual-DAC design and the upgraded CPU in the A&ultima SP1000 allows for accurate playback of native 32-bit/384kHz audio with no compromise on sound quality. The A&ultima SP1000 also supports native bit-to-bit DSD playback up to 11.2MHz for the best sound possible.
The AK4497EQ is a new generation premium 32-bit DAC based on AKM SOUND QUALITY architecture that has been widely adopted by well-established high-end audio companies.

Flagship Premium D/A Converter AK4497; the Highest Sound Quality and Performance

Flagship Premium D/A Converter

The AK4497 is a new generation premium 32-bit DAC based on AKM’s VELVET SOUND architecture that has been widely adopted by well-established high-end audio companies. High signal to noise performance is achieved by improving VELVET SOUND technology by supporting a larger current drive capability.
AKM has developed an original process that has greatly improved low noise performance and electric margin for audio devices, increasing data amount and enhancing original acoustic sound that can be found in the sound strength.

●Maximu Sampling Rate/Resolution: PCM768kHz/32-bit, DSD22.4MHz/1-bit
●DR, S/N: 128dB (Mono mode: 131dB)
●THD+N: -116dB
●Sound Color: 6 Types


VELVET SOUND is a brand concept of, “sound philosophy”, given to AKM’s new generation of audio devices and, “new architecture & core technologies”. A new circuit is designed to, “balance the amount of information and intensity”, and, “focus on the original sound”, to achieve rich musicality and high performance. This circuit contains specifications and features suitable for the high-resolution audio era.

Audio 4 Pro
Audio 4 Pro
About "Audio 4 Pro"

Audio 4 Pro™ products are designed for pro audio equipment, including mixing consoles, electronic musical instruments and sound effectors, meeting the highest sound quality standards of recording studios. Audio 4 Pro™ products range provides world-leading performance with high quality sound, winning trust within professional audio industry.

* Information on this page is current on the date of press release.
* AKM, VELVET SOUND Logo™ and Audio 4 Pro™ are trademarks of Asahi Kasei Microdevices Corporation in Japan, Europe and the United States.
* Appellations, company names and product names on this page are trademarks or registered trademarks of respective companies.

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Such as, "listening to directional sound",
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preserving the emotions the artist expressed
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Designed by VELVET SOUND

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