AK4499EQ
Flagship Premium D/A Converter
VERITA AK4499EQ
Flagship Premium D/A Converter
New Product
Description
The AK4499EQ current-output DAC is AKM’s latest VELVET SOUND VERITA product, following on from the previous flagship device, the AK4497EQ.
Current-output DAC Achieves Best-in-Class Performance
AKM’s Low-Distortion Technology has been optimized for the AK4499’s current-output architecture, resulting in a THD+N measurement of -124dB. The AK4499EQ achieves SNR of 140dB in mono mode.
Dynamic High-Resolution Playback with Incredible Detail
The AK4499EQ is produced using the same Premium Audio LSI process and Non-Magnetic Packaging technology originally developed for the AK4497EQ. These techniques dramatically improve noise performance, especially in the traditionally problematic lower frequency range.
Application
High-end Audio, Professional Audio, AV Receivers, CD/SACD Players, Network Audio, USB DAC’s, USB Headphones, Sound Plates, Sound Bars, PA Equipment, Bluetooth Headphones, HD Audio, Voice Conference Equipment, IC Recorders, Measurement Instruments, Control Systems
Key Features
- Maximum Sampling Frequency, Bit rate : PCM 768kHz/32-bit, DSD 22.4MHz
- SNR : 140dB
- THD+N : -124dB
- Sound Color Digital Filter : 6 types
Block Diagram
Main Specifications
| Part Number | AK4499EQ | AK4497EQ | |
|---|---|---|---|
| Number of Channels | 4ch | 2ch | |
| Output architecture | Current | Voltage | |
| Resolution | 32-bit | 32-bit | |
| THD+N | -124dB | -116dB | |
| DR, S/N | 134dB 140dB (Mono Mode) |
128dB 131dB (Mono Mode) |
|
| Sampling Rate | 8 to 768kHz | 8 to 768kHz | |
| DSD Input | 22.4MHz | 22.4MHz | |
| VELVET SOUND Technology |
Low Distortion Technology | Yes | Yes |
| LSI Process for Audio | Yes | Yes | |
| Non-Magnetic Pkg | Yes | Yes | |
| “Sound Color” Digital Filters | 6 types | 6 types | |
| Power Consumption | 667mW | 346mW | |
| Power Supply | Analog : 4.75 to 5.25V Digital : 1.7 to 3.6V |
Analog : 4.75 to 5.25V Digital : 1.7 to 3.6V |
|
| Operation Temperature Range | -40 to +85°C | -40 to +85°C | |
| Package | 128-pin HTQFP | 64-pin TQFP | |
About VELVET SOUND
VELVET SOUND is a sound philosophy and brand concept for AKM’s next-generation audio devices, featuring new chip architectures and core technologies.
The new circuitry found in VELVET SOUND devices is designed to maximize dynamics and ensure pure, unaltered audio data, prioritizing the accurate capture and reproduction of the source material in order to achieve high performance and rich musicality. These devices were designed specifically for the high-resolution digital audio era.
* VELVET SOUND ™, VELVET SOUND | VERITA ™ and Audio 4 Pro ™ are trademarks of Asahi Kasei Microdevices Corporation in Japan, Europe and the United States.
velvetsound.akm.com
by ASAHI KASEI MICRODEVICES