USB Audio DAC ＆ Headphone Amplifier

DDA-DAC1U
Owner's Manual© 2014 Deff Corporation. All rights reserved.

Product Feature■DSD playback support USB DAC＆Headphone amplifier
High perfomance USB Audio LSI enable 24bit/96HKz PCM
playback、more over 2.8GHｚ（2.8224MHz）Fromat DSDPlayback■SNR115dB Line out
SNR 115dB（A-weight Filter)、Hi SNR , it is just same level
as Hi-Fi Audio system■High perfomance OS-CON
Low-ESR, Conductive polymer aluminum solid electrolytic
condenser OS-CON brings extreme low distortion.
■Digital Out 、Digital In
24bit/96KHｚ PCM supported
Unsupport ed : hardware sound monitoring
Support : recording to PC by PC software■USB bus power / non driver■2 type Headphone suported
Sandard and φ3.5mm stereo mini jackUnsupported : Simultaneous monitoring■Mobile monitor (front line in)
Support music player or mobile phone that have 3.5mmearphone out put. Only monitoring.
Remark: Power supply (5V,500mA) is needed whe n use
this function.

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Specification and contents■USB Interface：USB2.0 Full Speed
Asynchronous mode and isochronous trandportation■Maximum sampling frequency：24bit/96KHz■SNR：115dB（A-weight Filter, RCA output）■Headphone output ：50 mW (32Ω）■Support OS：Windows XP/ Vista / Windows 7 / 8 /8.1
Mac OS X■Dimension ：W 110.0 x D 107.9 x H 35.6 mm■DDA-DAC1U USB Audio DAC ＆ Headphone Amplifier■User Manual■USB Cable■RCA Cable■Optical Cable
License and Trademark Information■Formal name of Windows is Microsoft Windows Operating System.
■Microsoft、Windows、Windows Media and Windows Vista are trademarksof Microsoft Corporation , registered in the U.S. and other countries.
■Apple, the Apple logo, Mac OS are trademarks of Apple Inc., registeredin the U.S. and other countries.

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Connections■Connecting the each devices
Mini System
AV Receiver

Optical OutUSRC

Optical In

Portable Music Device

４Connector and Switch■Front Panel②①③①Standard size Headphone Jack
②Stereo mini Headphone Jack③Selector
Headphone out / Line out / Front In④Mobile monitor⑤Power indicator
Turn on when USB connect to PC⑤④■Rear Panel⑦⑩⑪⑧⑨⑦Line out⑧DC-IｎIf need more electlicity, use USB-DC cable and connect⑨USB⑩Optical In⑪Optical Out

５Volume■Top Panel⑫⑫Volume
Remark: Line out and Optical Out are fixed , not variable.

Selector and Signal Flow
Selector Position

HeadphoneLine outMobile monitor

Input
USB
USB
USB
Optical In
Optical In
Optical In
Optical In
Mobile monitor
Mobile monitor
Mobile monitor
Mobile monitor
USB
USB
USB
Optical In
Optical In
Optical In
Optical In
Mobile monitor
Mobile monitor
Mobile monitor
Mobile monitor
USB
USB
USB
Optical In
Optical In
Optical In
Optical In
Mobile monitor
Mobile monitor
Mobile monitor
Mobile monitor

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OutputOptical Out
Line out
HeadphoneUSB
Optical Out
Line out
HeadphoneUSB
Optical Out
Line out
Headphone
Optical Out
Line out
HeadphoneUSB
Optical Out
Line out
HeadphoneUSB
Optical Out
Line out
Headphone
Optical Out
Line outHeadphoneUSB
Optical Out
Line out
HeadphoneUSB
Optical Out
Line out
Headphone

Signal Flow○×○○
×××××××○○×○
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××××××○＊○：OK ×：NG

６Setting■WindowsImage capture sample: Windows 7 (Japanese )Playback device selection

Support format check

Samplingrate selectExclusive (WASAPI) setting

７Setting■MacOS X

Image capture sample: MacOS X Mountain Lion (Japanese)Sound setting

Audio MIDI Setting

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