High performance DAC mDAC-2v(USB, Coaxial, Optical input) - diyAudio
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Old 19th August 2008, 06:06 PM   #1
ck210 is offline ck210  South Korea
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Join Date: Aug 2008
Smile High performance DAC mDAC-2v(USB, Coaxial, Optical input)

High performance USB DAC come out...

Model : "mDAC-2v"

Key feature :
- Digital input USB, Coaxial, Optical
- Sampling rate
USB : 44.1KHz, 48KHz, 88.2KHz, 96KHz / 24Bit
Coaxial : 32KHz, 44.1KHz, 48KHz, 88.2KHz, 96KHz, 176.4KHz, 192KHz / 24Bit
Optical : 32KHz, 44.1KHz, 48KHz, 88.2KHz, 96KHz / 24Bit
- PLL based USB audio jitter cleaner
- True bit-transparent operation
- Fixed level & variable level output RCA jack (0dB ~ -55dB)
- THD+N : 0.00057%(1KHz, 44.1KHz, 0dB)
- Dynamic range : 116.6dB
- Output stage frequency response : 20 ~ 100KHz(-3dB)
- Cross talk : -125dB(1KHz), -112dB(20KHz), -105dB(80KHz)
- No AC-coupling capacitors in audio signal path
- USB only & External power operation
- Custom made ultra low noise regulator
- High quality audio grade component

www.sotm-audio.com
sotm@sotm-audio.com

Sorry! English home page is under construction...
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Old 21st August 2008, 08:04 AM   #2
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Default more details please

Type of DAC and DIR? IV-conversion how?
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Old 21st August 2008, 08:10 AM   #3
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Location: Sofia
Default Re: more details please

Quote:
Originally posted by QSerraTico_Tico
Type of DAC and DIR? IV-conversion how?
Voltage out

TUSB3200A for USB interface
AK4117VF for digital audio interface
AK4396VF for audio DAC
OPA2228U for audio output stage
PGA2311A for volume control


I am more curious about the PLL
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Old 21st August 2008, 03:21 PM   #4
ck210 is offline ck210  South Korea
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Join Date: Aug 2008
Smile About PLL

mDAC-2v has 2 PLL in the circuit.
One for USB interface(TUSB3200A) and the other one for DIR(AK4117).

When use USB audio interface, PLL in TUSB3200A and F/W make USB jitter cleaning function.
This F/W control jitter cleaning function can remove low frequency jitter and locking speed is very fast than analog PLL.
Result of jitter cleaning function, sound quality are great imrovment.

SRC based jitter cleaner change the digital audio data.(because resampling caculation)
mDAC-2v jitter cleaning function never change digital audio data.
It is true bit transparent D/A conversion.

If you use mDAC-2v with your PC, your PC become a great audio source.

mDAC-2v unit price is 500,000 KRW in south korea.
It is 474.38 USD
Todays 1 USD exchange rate is 1072.44 KRW.

Thank you.
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Old 6th July 2010, 09:19 AM   #5
ck210 is offline ck210  South Korea
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Join Date: Aug 2008
Post New High-End PC Audio products....

New High-End PC Audio products....

tX-USB : PCI USB Host Card for the Hi-End PC-Audio.
Click the image to open in full size.

It is designed to get clean power and very accurate USB signal from PC inside.
To achive this goal, Special designed noise filter and Ultra low noise power circuit is used for this USB card.
If you use PC for your music listening player, tX-USB will give you Hi-END sound quality from your sound system
You can enjoy your listening experience will be better than ever.

Specification
- 2 USB port
- All ports can handle high-speed (480 Mbps), full-speed (12 Mbps), and low-speed (1.5 Mbps)
- 32-bit 33 MHz host interface compliant with PCI specification revision 2.2
- Supports 3.3 V PCI
- USB power on/off/open function
- Windows 2000 SP4, Windows XP SP2, Windows Vista, Windows 7, OS-X v10.x


dX-USB : USB to S/PDIF converter
Click the image to open in full size.
Click the image to open in full size.

dX-USB is connected to USB port of your PC. And It deliver High-End Audio quality Digital audio signal to your DAC through Coaxial, Optical, I2S output.

To achieve this goal, dx-USB is designed to use USB audio jitter cleaner, Ultra low noise power supply and Ultra low jitter clock which is developed by SOtM audio. and dx-USB also use special selected premium parts to maximize its performance.

The reason to use special circuit board design and parts is to reduce the jitter which is common problem of digital source player. You can find these solutions are now using on High-End audio device more and more.

dx-USB is the ultimate solution for your Hi-End quality PC-audio. And if you want to maximize the sound quality. We recommend you to use with tx-USB device.


Specification
- Output : Coaxial, Optical, I2S
- Sampling rate : 44.1KHz, 48KHz, 88.2KHz, 96KHz
- Bit-depth : 24bit, PCM
- USB power or External power input(+8Vdc ~ +12Vdc)
- Precision USB clock synchronizing PLL control function for USB audio jitter reduction
- Windows 2000 SP4, Windows XP SP2, Windows Vista, Windows 7, OS-X v10.x

SATA & FAN filter: PC noise reduction
Click the image to open in full size.

Click the image to open in full size.

This products reduction power noise from HDD disk motor and FAN motor

Specification
- Input voltage : 12Vdc
- Input current : 2A

We are looking for dealer of this product.
If you are interested, Please contact sotm@sotm-audio.com or gp1601@naver.com

www.sotm-audio.com
Sorry! English home page is under construction...
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