Deff DDA-DAC1U User manual

USB Audio DAC ＆Headphone Amplifier
DDA-DAC1U
© 2014 Deff Corporation. All rights reserved.
Owner's Manual

Product Feature
■DSD playback support USB DAC＆Headphone amplifier
High perfomance USB Audio LSI enable 2 bit/96HKz PCM
playback、more over 2.8GHｚ（2.822 MHz）Fromat DSD
Playback
■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.
■2 type Headphone suported
Sandard and φ3.5mm stereo mini jack
Unsupported : Simultaneous monitoring
■Digital Out 、Digital In
2 bit/96KHｚPCM supported
Unsupport ed : hardware sound monitoring
Support : recording to PC by PC software
■USB bus power / non driver
■Mobile monitor (front line in)
Support music player or mobile phone that have 3.5mm
earphone out put. Only monitoring.
Remark: Power supply (5V,500mA) is needed whe n use
this function.
２

Specification and contents
■USB Interface：USB2.0 Full Speed
Asynchronous mode and isochronous trandportation
■Maximum sampling frequency：2 bit/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
■Formal name of Windows is Microsoft Windows Operating System.
■Microsoft、Windows、Windows Media and Windows Vista are trademarks
of Microsoft Corporation , registered in the U.S. and other countries.
■pple, the pple logo, Mac OS are trademarks of pple Inc., registered
in the U.S. and other countries.
License and Trademark Information
３

Connections
US RC
Mini System
Optical In
Optical Out
■
Connecting the each
devices
AV Receiver
Portable Music Device
４

Connector and Switch
■
Front Panel
①
②
③④
⑤
①Standard size Headphone Jack
②Stereo mini Headphone Jack
③Selector
Headphone out / Line out / Front In
④Mobile monitor
⑤Power indicator
Turn on when US connect to PC
⑦Line out
⑧DC-Iｎ
If need more electlicity, use US -DC cable and connect
⑨US
⑩Optical In
⑪Optical Out
⑦⑧ ⑨ ⑩ ⑪
■
Rear Panel
５

Selector and Signal Flow
Volume
■
Top Panel
⑫
⑫Volume
Remark: Line out and Optical Out are fixed , not variable.
６
Selector Position Input Output Signal Flow
USB -> Optical Out ○
USB -> Line out ×
USB -> Headphone ○
Optical In -> USB ○
Optical In -> Optical Out ×
Optical In -> Line out ×
Optical In -> Headphone ×
Mo ile monitor -> USB ×
Mo ile monitor -> Optical Out ×
Mo ile monitor -> Line out ×
Mo ile monitor -> Headphone ×
USB -> Optical Out ○
USB -> Line out ○
USB -> Headphone ×
Optical In -> USB ○
Optical In -> Optical Out ×
Optical In -> Line out ×
Optical In -> Headphone ×
Mo ile monitor -> USB ×
Mo ile monitor -> Optical Out ×
Mo ile monitor -> Line out ×
Mo ile monitor -> Headphone ×
USB -> Optical Out ○
USB -> Line out ×
USB -> Headphone ×
Optical In -> USB ○
Optical In -> Optical Out ×
Optical In -> Line out ×
Optical In -> Headphone ×
Mo ile monitor -> USB ×
Mo ile monitor -> Optical Out ×
Mo ile monitor -> Line out ×
Mo ile monitor -> Headphone ○
＊○：OK ×：NG
Headphone
Line out
Mo ile monitor

Setting
Image capture sample: Windows 7 (Japanese )
■
Windows
Playback device selection Support format c eck
Samplingrate select Exclusive (WASAPI) setting
７

Setting
■
MacOS
X
Image capture sample: MacOS X Mountain Lion (Japanese)
Sound setting
Audio MIDI Setting
８