|Description :||User's Guide|
DR.DAC3, which is a technically perfect integration of the top level DAC and powerful dual headphone amps as well as having USB audio features that can build a computer based HiFi audio system, provides the most advanced digital audio solutions. It adopts the highest VT1731 Envy USB Audio Controller by VIA Technologies, Inc., which supports USB 2.0 Hi-Speed (480 Mbps, asynchronous), to support 24bit / 192㎑ in Optical/Coaxial Input as well as USB Input mode and also adopts PCM1794, TI’s highest DAC with a dynamic range reaching to 129 ㏈ to hear high-quality sound source with rich resolution and HiFi sound quality.
It takes certain time to turn the power ON/OFF. When you connect the headphone, do not connect other similar cable besides any headphone to the Headphone Outputs port; it is reco㎜ended to connect during the device’s
power OFF with lowest adjusted volume.
① Power Switch & ② Power Indicator
A switch for the device’s power ON/OFF and an LED to indicate the power states. Connect the adapter power and press the power switch ON, then the LED will flicker three times slowly; turn it OFF and it will flicker two times before the power shut off. If you connect the power supply of the adapter or cut and reconnect it while the power switch is already ON, it does not convert right into an action mode but goes into a stan㏈y mode flickering the LED, so you should turn off and then turn on again by pressing the switch and it will be a normal operation status.
③ & ④ Headphone Outputs 1 / 2
It supports 2 headphone ports, which output the same signal with different output gains (OUTPUT No. 1: 10 Vpp; OUTPUT No. 2: 20 Vpp) that makes a driving force difference.
You may connect according to the type of headphone that you use: for use of 16~32Ω earphones or 300Ω reaching headphones, connect to No. 1 Headphone Outputs port; for use of 300~600Ω studio monitoring high-impedance headphones, connect to No. 2 Headphone Outputs port.
※ If you want to use two headphones at the same time, you should connect them with the same type of impedance as the same output gains (20Vpp) are applied to No. 1 port as well as to No. 2 when you connect a headphone to No. 2 Headphone Outputs port.
⑤ Active Indicator
An LED that displays the device’s action state. The LED lights on while playing, and stays off for other times.
⑥ & ⑦ Sample-rate Information Indicators
It supports sample rate of 44.1㎑, 48.0㎑, 88.2㎑, 96.0㎑, 176.4㎑ and 192.0㎑. Applicable sample rate’s LED lights on when normal S/PDIF signal is found out from Optical/Coaxial Input or USB Input. If the sample rate goes beyond the range of ±3 % or it is not normal PCM signal, UNLOCK LED lights on and it may not operate normally.
⑧ Digital IN Select Switch
A switch that selects Digital Input Modes. It supports three optional modes and Coaxial, Optical, or USB can be selected according to the input signal.
⑨ Source Select Switch
A selector switch for Digital or Analog Input. Select Digital switch when S/PDIF signal is received to an Optical or Coaxial port or USB external sound devices are used; select Analog switch then the analog signal received to RCA Line-In port goes through a Pre-amp circuit to the Headphone port or the Line-Out port. ※ FDO Triple OPAMP circuits are applicable only when using Digital inputs (Optical, Coaxial or USB), and only the Line-Out Pre-amp and the Headphone Pre-amp are applicable for using Analog input.
⑩ Output Select Switch
You may selectively use the RCA Line Output and the frontal Headphone Outputs. When you select switch the output goes to RCA Line-Out, and when you select switch the output turns to the frontal Headphone Outputs.
※ You cannot use the RCA Line Output and the Headphone Outputs at the same time; and adjust the switch appropriately after converting it with lowest volume knob as momentary large output can be generated for the switch conversion.
⑪ Volume control
It controls the output level of the RCA Line-Out and the Headphone.
Explanation of Front Switch Selection
USB Mode Setup
In Windows, you may use it only after installing the driver that is included in the installing CD or downloadable from website; in Mac OS X, you may use it without extra drivers.
Digital Output Setup
Digital output with stereo PCM method that supports Bit-Perfect is possible for using the product as a USB audio device; and AC3(Dolby Digital) / DTS PassThrough output is possible in Microsoft Windows operating systems.
※Essential point for driver install (For Windows XP/7/8)To use the function of the DR.DAC3 USB AUDIO, you must install a DR.DAC3 driver(VIA USB Audio Driver) through a provided CD or on the AUDIOTRAK's Web site (www.audiotrack.net).
How to use the Control Panel (Windows XP)
When the driver is installed and the Windows is restarted, the Audiotrak DR.DAC3 Deck will be displayed on the system tray of the task bar, where a click on the icon displays the following control panel on the desktop.
▶ Recording settings
DR.DAC3 allows you to record USB playback sounds and PCM signals without any loss.
1. For recording of PCM signals, set the Input Select switch on the front of DR.DAC3 to Optical and select Audiotrak DR.DAC3 as the basic sound playback and recording devices at Control Panel -> Sound and Audio Devices -> Audio.
2. For recording of USB playback sounds, set the Input Select switch on the front of DR.DAC3 to the USB position and select Audiotrak DR.DAC3 as the basic playback and recording devices at Control Panel -> Sound and Audio Devices -> Audio.
● Speaker Test
A click on Speaker Test enables you to test the outputs of the left and right channels.
※ For more Advanced Option / Information / Power, please refer to the Windows 7/8 set-up.
How to Install (Windows 7/8)
Please follow installation order as below images:
※Essential point for driver install (For Windows XP/7/8)
To use the function of the DR.DAC3 USB AUDIO, you must install a DR.DAC3 driver(VIA USB Audio Driver) through a provided CD or on the AUDIOTRAK's Web site (www.audiotrack.net).
How to use Control Panel (Windows 7/8)
① SPDIF Out : to activate all of the PCM, Speaker (Line Out), and Headphone outputs.
② Digital In : to enable recording when signals are input from an USB or a PCM device.
③ Master Volume : to adjust the overall volume of the output.
④ Mute : to disable output sound
⑤ Set Default : to restore the default audio devices (for playback/ recording) on the Windows.
⑥ Spread window : to unfold the control panel to display the audio setting menu
⑦ Advanced Option : to select languages for the control panel and determine an icon displayed on the system tray.
⑧ Information : to check the versions of the driver, Windows, and Direct X.
⑨ Power : to end the control panel.
※ Be noted that Sample Rate and Bit Depth can’t be changed while the audio is running.
※ Make sure that only the Sample Rate 44.1㎑/48㎑ can be applied when QSound NanoQ Effects is being enabled.
● Activation of ⑩ QSound Enable on the ⑨ QSound NanoQ Effects menu enables diverse QSound functions.
QXEnable : to create a virtual surround sound environment using two channels to enhance the perception of sound spatialziation.
● Advanced Option
Language Select : to make selection of a language for the control panel
This window shows the versions of the driver, Windows, and Direct X.
This icon exits the control panel. The control panel icon will continue to appear in the system tray of the Windows task bar when the ‘Advanced Option -> Show Tray Icon’ button is clicked.
How to Install (Mac OS X)
The program is automatically identified on Mac OS X and registered as DR.DAC3 on [Audio MIDI setting], in which Sample Rate and Bit Depth can be selected under the Audio Device window.
▶ Recording settings
Choose SPDIF RX among the audio input items under the Audio MIDI settings.
You must disconnect the power adapter in the backside of the DR.DAC3 and a USB cable before exchanging OPAMPs. When you install OPAMPs, insert the OPAMP into the socket’s groove correctly with the same directions. Applicable OPAMP to the DR.DAC3 is a stereo (dual type) / DIP type, which you may use operable OPAMP in more than ±12V with its driving voltage. You may use SMD type OPAMP by converting from SMD → DIP; and you may use Single Type OPAMP by converting from Single → Dual.
※ Note: You must pay close attention to the direction of the OPAMP when you exchange it. Particularly, in case of a product damage or functional problem due to wrong installation of the OPAMP, we do not guarantee service free of charge during warranty period so please be cautious for installation.
ㆍPower Supply : DC 12V~15V
ㆍDimensions / Weight : 140(㎜) x 111(㎜) x 30(㎜) / about 400g
· Type : 1/4” Stereo phone jack
· Maximum Out Level : Port 1 : 10Vpp / Port 2 : 20Vpp
· Maximum Load Power : 1.5W
· THD+N : 0.00014% (@ 80㎽, 600Ω, 1㎑)
· Impedance : 0Ω (Load : 16 ~ 600)
ㆍLine Input / Output
· Type : Unbalanced RCA
· Maximum Out Level : 10Vpp
· Impedance : 10㏀(Input) / 200Ω(Output)
· Type : Max 24bit / 192㎑, USB2.0 Hi-speed
· OS Support : Windows 8 / Windows 7 / Windows Vista / Windows XP / Mac OS X Compatible
ㆍDigital Audio Input
· Type : S/PDIF Optical on TOS-LINK 44.1~192㎑ / S/PDIF Coaxial on RCA 44.1~192㎑
· Format : IEC-60958, S/PDIF Compatible
· Sample rate Detection : 44.1, 48.0, 88.2, 96.0, 176.4, 192.0㎑ (@ ±3%)
ㆍDigital Audio Output
· Type : S/PDIF Optical on TOS-LINK 44.1~192㎑
· Format : IEC-60958, S/PDIF Compatible
· Sample rate Detection : 44.1, 48.0, 88.2, 96.0, 176.4, 192.0㎑
· Type : 24bit, 192㎑, 8times Digital filter
· Dynamic Range : 129㏈
· THD+N : 0.0004% (@ fs=44.1㎑, 0㏈)
ㆍOPAMP Configuration & Headphone Amplifier
· Operating Voltage : Operating Voltage
FDO I/V filter : NE5532 x 2 (DIP, Socket Type)
FDO Mixed : MUSES8920D (DIP, Socket Type)
Analog out buffer: MUSES8920D (DIP, Socket Type)
Headphone Amplifier: TPA6120
ㆍPower Consumption : About 3W~5W
ㆍ2 year limited warranty for free the date of your purchase is applicable.
ㆍThe date of purchase is referred to the dated itemized receipt. If proof of receipt is not possible, the date of the purchase is estimated from product manufactured date.
ㆍThe limited warranty is only applicable for free in case of normal usage during warranty period. Any failure or damage of the product by natural disaster (lightening, fire, flooding, etc.), remodeling, and carelessness or mistakes of user even if during the warranty period.
ㆍFor more information about product and technical support, please feel free to visit our website and go to Q&A board to be supported.