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韩国微声推出第一款带屏蔽罩的声卡


www.microsound.co.kr 【转载】 2006年03月31日 06:00 评论

    韩国微声(Microsound)推出了一款基于Envy24HT (ICE 1724)的八声道高档声卡,支持数字同轴输入输出。这块声卡采用Wolfson WM8776 DAC/ADC(负责前置模拟输出以及模拟输入)以及WM8766 DAC(负责其他声道输出),Crystal CS8415 数字界面芯片,JRC 4580运算放大器。大小高档电容林立,用料看似不错。最引人注目的是,这款声卡第一次使用了金属屏蔽罩,有了屏蔽之后,声卡的噪声还可以进一步降低(本站以前出过类似测评)。虽然韩国人擅长吹牛,在这款产品的介绍中不乏Hi-Fi,High-End等词汇,但是这种设计还是十分值得期待的。

以下文字图片均转载自其官方网站


韩国微声推出第一款带屏蔽罩的声卡

    The COMRADE DIGITAL 7.1 Hi-Fi, the newest High-End sound solution, with Envy24HT (ICE 1724) and WM8776/ 8766 CODEC of Wolfson, being compatible with 98SE/ ME/ 2000/ XP/ 2003 as well as Windows XP 64 Bit, makes the highest quality of sound without any noise.

韩国微声推出第一款带屏蔽罩的声卡

  For maintaining the stable outputting level, COMRADE DIGITAL 7.1 Hi-Fi uses the higher quality capacitor of Sanyo OS con and Nichicon. And by separating Analog part from digital part and using aluminum cover for shielding the sound against an electromagnetic wave, it makes a higher quality sound than normal sound cards. In addition to it, COMRADE DIGITAL 7.1 Hi-Fi enables users to change the OPAMP according to user’s preference.

韩国微声推出第一款带屏蔽罩的声卡

COMRADE DIGITAL 7.1 HiFi

Analog Out

- Compatible with 2, 4, 5.1,and 7.1 channels mode 

- 35 mm jack for connecting to PC speaker
    (Front, Rear, C/ W, B/S output ports)

- Inter-connector port for connecting to Audio. (RCA X 2)

- 10dBV Unbalanced /8dBV/
  0dB or +3dB Gain/ Impedance 10K Ohm

Analog In

- 35 mm jack for connecting to Dynamic and condenser   MIC(5V)

- MIC: Sensitive 127mV / Hardware +3dB Gain Software   +20dB / Impedance 2K Ohm

- 35 mm Line In jack for connecting TV card.

- Line In : Level -10dBV / Impedance 10K Ohm

Digital In/Out

- MAX 24Bit/192KHz (MAX 24Bit/96KHz Optical Output)

- MAX 24Bit/192KHz CD-Digital Input

- PCM or Non-PCM DATA Pass-thru (AC3/DTS)

Audio Controller

- 32Bit PCI bus master

- Wave Cyclic DMA mode

- 24Bit/192KHz 4-Input / 10-Output

- S/PDIF function built it

- Bit to Bit data transmission

- Support up to 22KHz ~ 192KHz frequency

D/A Converter

- 108dB SNR (A-weighted @ 48kHz) - Front

- 103dB SNR (A-weighted @ 48kHz)

- Rear ~ Back Surround

- DAC Sampling Frequency: 32kHz / 192kHz

- Stereo DAC with Independent Analogue and
  Digital Volume Controls

A/D Converter

- 102dB SNR (A-weighted @  48kHz) ADC

- ADC Sampling Frequency: 32kHz / 96kHz

Minimum system requirement

Intel Pentium 1-GHz or equivalent CPU

● 256MB RAM

● One available slot not using IRQ joint.

● Microsoft Windows 98SE operating system.

● UDMA 100, 7200rpm hard disk drive or faster

* Caution: this card can not be installed on Slim PC or small case because of large PCB

 

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡

  COMRADE DIGITAL 7.1 Hi-Fi with Envy24HT (ICE 1724) audio controller supports up to 7.1 analog outputs (2, 4, 5.1, 7.1 channels) and 24 bit/ 192 kHz digital I/ O. And COMRADE DIGITAL 7.1 Hi-Fi with 4 layers PCB uses the high performance grounding circuit, so that it reduce the electromagnetic wave from the internal part of PC.

韩国微声推出第一款带屏蔽罩的声卡

  The output is composed of a voltage and electronic current. This is the reason why the higher quality audio device focuses on the power supply. COMRADE DIGITAL 7.1 Hi-Fi also uses OS-CON of SANYO and the high performance capacitor (2200uF), and its high quality regulator cuts off the noise from unstable power caused by CPU and HDD/ ODD usage. The OS-CON of SANYO used for power supply is better than normal electrolytic capacitor, and has the low ESR.

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡

  COMRADE DIGITAL 7.1 Hi-Fi separates the analog circuit from the digital circuit, so that it makes the higher quality sound. And, it uses the metal cover to reduce the interference to pre-AMP caused the electromagnetic wave from the internal part of PC. This metal cover prevents the interference between analog and digital part, and protects the pre-AMP from an electromagnetic wave.

韩国微声推出第一款带屏蔽罩的声卡

  By jumper setting next to the metal cover, the ground for the electromagnetic wave is applied to the Analog or Digital circuit in priority, so that The COMRADE DIGITAL 7.1 Hi-Fi makes the high quality sound without a noise.

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡

  The OPAMP used as pre-AMP function is seated on the 8PIN DIP type “Socket”, so that it can be changed easily according to user’s preference. (This type of socket is compatible with the 8PIN DIP type DUAL OPAMP like the OPA 2134/ OPA2604 of TI, and AD827/ AD826 of Analog Device, etc.) And, the jumper is used to increase the gain for each port by +3 dB in order to use the amplifying function of OPAMP.

韩国微声推出第一款带屏蔽罩的声卡

  And COMRADE DIGITAL 7.1 HiFi have the 9 Pin port connecting the front panel of computer case. And the jumper in the left picture enables users to choose how to receive the external SPDIF signal through 2 Pin or 6 Pin port.

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡

韩国微声推出第一款带屏蔽罩的声卡
※ Specification

Feature

Note

Digital output
Optical
Bus Type
PCI
Analog output
7.1

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