家庭音响

为了最极致的真实现场音效

集AKM广受好评的混合信号技术之大成,致力于实现数字音频新世界

AKM的高级音频设备,引导高分辨数字音频领域。
VELVET SOUND设备中的新电路旨在最大程度地提高动态性,并确保纯净,不变的音频数据,优先进行源素材的精确捕获和再现,以实现高性能和丰富的音乐性。 这些设备是专门为高分辨率数字音频时代设计的。

FEATURED PRODUCTS

VERITA AK4499EQ

Flagship Premium D/A Converter

AKM’s VERITA audio devices target high-end and boutique audio equipment. These devices integrate cutting-edge features ideal for the Hi-Fi and high-resolution audio markets.
VERITA AK4499EQ

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.

Key Features

  • Maximum Sampling Frequency, Bit rate : PCM 768kHz/32-bit, DSD 22.4MHz
  • SNR : 134dB (Mono mode: 140dB)
  • THD+N : -124dB
  • Sound Color Digital Filter : 6 types

音频数模转换器

产品系列

Premium D/A Converters

Part Number Document Ch # Res. S/N THD+N * Max
 fs *
DSD
Input *
Sound
Color *
Power
Consump.
Notes
      bit dB dB kHz MHz   mW  
AK4499EQ   4 32 134 (140 *) -124 768 22.4 6 types 667 VERITA
AK4498EQ
AK4191EQ
  2
2
-
64
128 (131 *)
153
-116
-153
-
1536
-
45.2
-
7 types
331
26
Analog only
Digital only
AK4497EQ Datasheet 2 32 128 (131 *) -116 768 22.4 6 types 346  
AK4493EQ
  2 32 123 (126 *) -113 768 22.4 6 types 203  
AK4490EQ Datasheet 2 32 120 (123 *) -112 768 11.2 5 types 145  
AK4462VN Datasheet 2 32 117 -107 768 22.4
6 types 70  
AK4468VN Datasheet 8 32 117 -107 768 22.4
6 types 245  
AK4452VN Datasheet 2 32 115 -107 768 11.2 5 types 50  
AK4454VN Datasheet 4 32 115 -107 768 11.2 5 types 97  
AK4456VN Datasheet 6 32 115 -107 768 11.2 5 types 140  
AK4458VN Datasheet 8 32 115 -107 768 11.2 5 types 181  

[Notes]

* S/N (Mono mode)
* THD+N: Total Harmonic Distortion plus Noise
* Max fs: Maximum Sampling Frequency
* DSD: Direct Stream Digital
* Sound Color: AKM original digital filter

* Schedules of Samples and Production are subject to be changed without notice.
* The information in the datasheet is subject to be changed without notice.

音频模数变换器

产品系列

Premium A/D Converters

Part Number Document Ch # Res. S/N THD+N * Max fs * DSD
Input *
Sound
Color *
Power
Consump.
Notes
      bit dB dB kHz MHz   mW  
AK5397EQ Datasheet 2 32 127 (130 *) -108 768 3 types 455  
AK5572EN Datasheet 2 32 121 (124 *) -112 768 11.2 4 types 148 VERITA
AK5574EN Datasheet 4 32 121 (127 *) -112 768 11.2 4 types 275 VERITA
AK5576EN Datasheet 6 32 121 (128 *) -112 768 11.2 4 types 411 VERITA
AK5578EN Datasheet 8 32 121 (130 *) -112 768 11.2 4 types 536 VERITA
AK5552VN Datasheet 2 32 115 (118 *) -106 768 11.2 4 types 83  
AK5554VN Datasheet 4 32 115 (121 *) -106 768 11.2 4 types 140  
AK5556VN Datasheet 6 32 115 (122 *) -106 768 11.2 4 types 206  
AK5558VN Datasheet 8 32 115 (124 *) -106 768 11.2 4 types 261  

[Notes]

* THD+N: Total Harmonic Distortion plus Noise
* Max fs: Maximum Sampling Frequency
* DSD: Direct Stream Digital
* Sound Color: AKM original digital filter

* Schedules of Samples and Production are subject to be changed without notice.
* The information in the datasheet is subject to be changed without notice.

采样率转换器

产品系列

Premium SRCs

Part Number Document SRC 
Ch #
Res. DR * THD
+N *
Input fs*
(FSI)
Output fs*
(FSO)
Sound
 Color *
Others Notes
      bit dB dB kHz KHz      
AK4137EQ Datasheet 2 32 186 -150 8 to 768 8 to 768 4 types PCM/DSD converter VERITA
AK4136VQ Datasheet 2 32 176 -140 8 to 384 8 to 384 4 types    

[Notes]

* DR : Dynamic Range
* THD+N: Total Harmonic Distortion plus Noise
* DSD: Direct Stream Digital
* Sound Color: AKM original digital filter

* Schedules of Samples and Production are subject to be changed without notice.
* The information in the datasheet is subject to be changed without notice.