News Release

- Premium Audio News -

Premium DAC AK4490 featured in FiiO’s X5 3rd gen

FiiO’s Portable Music Player, the X5 3rd gen uses AKM’s Premium D/A Converter the AK4490

FiiO X5 3rd gen
X5 3rd gen

Asahi Kasei Microdevices Corporation's (AKM) premium audio DAC: the AK4490EN has been adopted in FiiO’s new portable music player, the X5 3rd gen released on the 17th December 2016.

The X5 3rd gen is equipped with two top-of-line AKM AK4490EN DACs, one for each channel. The AK4490EN is a part of a new generation of high-quality 32-bit DACs that supports all PCM and DSD formats. By using a dual-channel implementation of AKM’s unique VELVET SOUND low-distortion architecture that includes digital filtering with 32-bit processing, the DAC chips in the X5 3rd gen have the ability to finely and exactly reproduce your music.

120dB 768kHz/32-bit 2ch Next Generation Premium High-end D/A Converter

Premium High-end D/A Converter

The AK4490EN inherits high quality sound technologies of the AK4490EQ that has been adopted by many audio products since it was launched in 2014. Downsizing the package and supporting a 1.8 V digital interface, the AK4490 is ideal for portable applications. It supports high resolution sound sources as a digital input and up to 768 kHz PCM and 11.2 MHz DSD (Direct Stream Digital) data.

●Maximu Sampling Rate/Resolution: PCM768kHz/32-bit, DSD256(11.2MHz)/1-bit
●DR, S/N: 120dB (Mono mode: 123dB)
●THD+N: -112dB
●Sound Color: 5 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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