A class leading DAC for your home system User manual
Contents
1. Optoma mE EREE DAC80 A class leading DAC for your home system User manual ALDACBZ NuForce DAC 80 Digital to Analog Converter FCC Notice Declaration of Conformity Information This equipment has been tested and found to comply with the limits for a Class B digital device pursuant to part 15 of the FCC Rules These limits are designed to provide reasonable protection against harmful interference in a residential installation This equipment uses and can radiate radio frequency energy and if not installed and used in accordance with the instructions may cause harmful interference to radio communications However there is no guarantee that interference will not occur in a particular installation If this equipment does cause harmful interference to radio or television reception which can be determined by turning the equipment off and on the user is encouraged to try to correct the interference by one or more of the following measures e Reorient or relocate the receiving antenna e Increase the separation between the equipment and receiver e Connect the equipment into an outlet on a circuit different from that to which the receiver is connected e Consult the dealer or an experienced radio TV technician for help WARNING Only peripherals complying with the FCC class B limits may be attached to this equipment Changes or modifications made to this equipment not expressly approved by us or parties authorized by us coul2. options As you can see both Direct Sound DS and WASAPI options are listed preferred output bit hardware capabiities wi only result in degraded performance Once the WASAPI mode is selected the native sample rate will be employed No adjustment in Audio CPL is required Look at the Stream Status You will note in the screenshot below that the actual sample rate used does not equal the selected sample rate This is a result of WASAPI s ability to provide automatic playback of the music file in its native format apart from those of other Sound Effects settings Audio Format is bit 44100 Hz Stream Status fesbit 192000 Hz Stop player before new audio format setting takes effect NuForce DAC 80 Digital to Analog Converter Mac OS Installation Download Driver First you will need to download the required driver from the following location http nuforce optoma com download Install Driver amp Software After downloading the driver the Installation program begins Click Continue gt Install gt Install Software gt Continue installation as each screen appears In the last window click Restart to reboot your computer in order to complete the installation process Install Nuforce ASY USB Audio Welcome to the Nuforce ASY USB Audio Installer Introduction Destination Sele You will be guided through the steps necessary to install this software Installatio Installatio
3. a power amplifier from the RCA outputs Inputs The DAC 80 provides for connecting up to four digital sources They are selected in the following order e Input 1 USB Input 2 SP DIF coaxial RCA e Input 3 SP DIF optical Toslink e Input 4 SP DIF coaxial RCA To select the desired input simply press the Input buttons labeled 1 4 Once pressed the selector button will illuminate Please note the last selected input is memorized when DAC 80 is turned off and will become the active Input when the unit is turned back ON Volume Control The volume knob is a one turn control Pressing in on the knob turns the DAC 80 ON and OFF OFF standby The volume at turn on will be determined by the knob position LED Indicators A stable and fully illuminated LED indicates the sample rate Blue multiples of 48kHz e White multiples of 441kHz A blinking LED indicates that the output is muted When the six LEDs light sequentially in a clockwise pattern the digital signal is not standard PCM format Rather while the DAC 80 has locked onto the signal it may be a DTS signal such as from a Blu ray player or some format using a non standard sample rate such as 38 8kHz No LED indicates that the unit is OFF or in standby mode Using the Remote Control The DAC 80 comes with a simple remote control with the following buttons e On Off e Input cycles through Input 1 to 4 e Volume e Volume e Mute When usin
4. d void the user s authority to operate the equipment This device complies with part 15 of the FCC Rules Operation is subject to the following two conditions 1 This device may not cause harmful interference and 2 this device must accept any interference received including interference that may cause undesired operation NuForce DAC 80 Digital to Analog Converter QUICK START GUIDE Product Overview Front Panel Back Panel Make sure that the AC Voltage selector switch at the rear of the unit is switched to the appropriate voltage for your country All DAC 80s are shipped with the switch set to 230VAC in order to prevent accidental damage Turn ON the AC power switch at the rear of the unit The DAC 80 will now be in standby mode The logic On Off is enabled by pushing the knob or using the remote The DAC 80 consumes less than 1W in standby and approximately 10W when ON When turned ON from the standby state the DAC 80 requires six seconds to stabilize During that period the LED will blink and the output will be muted NuForce DAC 80 Digital to Analog Converter Connections Connect the appropriate digital source to any of the available digital inputs by using a high quality corresponding cable type USB coaxial or Toslink The analog RCA output should be connected to your preamp using high quality interconnect cables Please note It is not recommended to directly drive
5. g the Remote Control to change the volume please note the knob on the front panel is not motorized and therefore will not turn However moving the front panel knob will immediately change the volume to that knob position NuForce 06 80 Digital to Analog Converter SPECIFICATIONS 4 Digital inputs USB Toslink RCA x 2 transformer or optical isolated AC coupled Maximum bit depth 24 bit Maximum sample rate 192kHz USB Asynchronous up to 192kHz 24 bit Sample rate indicator YES Volume control 32 bit digital attenuator THD N 0 005 OdB 1kHz SNR 960 1kHz A weighted Frequency Response 20 25kHz 0 25dB Outputs RC Output voltage OdB 1kHz RCA 4 0Vrms Output Impedance RCA 100 Ohm Remote Control Functions Volume Input Select Mute Stand by AC voltage 100V 110V 220V 230V Power consumption 12 Watts Dimensions wide x deep x tall 8 5 x 9 x 2 Weight 1 2kg NuForce DAC 80 Digital to Analog Converter USB 192kHz 24 bit SETUP amp OPERATION The following guidelines and drivers are for enabling the DAC 80 for use with PC or Mac computers in Asynchronous USB Mode In most cases this is the preferred operation for the best possible performance Note e The instructions below are required for Windows OS systems You will find Mac OS setup instructions following this section Windows OS Installation Download Driver First you will need to download the required driver from t
6. he following location http nuforce optoma com download Download Location Operating Systems Product Model Comment t Read Asynchronous USB FAQ to get the t NuForce Async USB Windows XP Windows 7 32 amp 64 bit Driver x gt 2 E EESE Driv is not required for Mac OS GEk best out of this high performance DAC M 192kHz Windows XP Windows 7 32 amp 64 bit 809 U1925 LPS 2U 192Kk Mac OS 809 01925 Install Driver 6 Software After downloading the driver run the Installation program After the installation an icon linking to the NuForce Stereo Audio Control Panel program will appear on your desktop For now move on to the Connect Hardware step Detailed information regarding software adjustment will follow Connect Hardware Once the software has been installed connect a quality USB cable from the computer s USB port to the input of the DAC 80 After the cable is connected a window will pop up at the lower right side of the display that reads NuForce Async USB Audio 192K HS installed Select Playback Right click on speaker icon at the bottom right and select Playback Devices Choose NuForce DAC 80 and close window NuForce 06 80 Digital to Analog Converter Adjust Software Windows 7 Setup Direct Sound DS is the default Windows audio mode It operates with the Windows Mixer enabled This means that other sound prompts such as email notifications etc will be mixed into the mu
7. kHz USB Asynchronous up to 192kHz 24 bit Bit Resolution 16 or 24 bit 10 Optoma www O0ptoma com
8. n Go Back Continue Connect Hardware Once the software has been installed connect a quality USB cable from the computer s USB port to the input of the DAC 80 A white LED multiples of 44 1k will indicate that the DAC 80 recognizes the connection NuForce 06 80 Digital to Analog Converter Adjust USB 192 Software Installation of the USB 192 software on Apple Mac systems is straightforward and simple 1 On the Desktop select Launchpad 2 Under Launchpad select Utilities 3 Under Utilities select Audio Midi Setup 4 Under Audio Midi Setup select NuForce DAC 80 as the default audio device 5 In the Format drop down menu select the desired sample rate and bit resolution 6 The color Blue or White of the LED on the DAC 80 will indicate the selected sample rate 7 Begin using the DAC 80 by playing music files via your media software ut Built in Output Clock source Default Oin 2 out a Soundflower 2ch 2in 2out Soundflower 16ch 2 16 in 16 out Source Default Nuforce 192k DAC HS Format 192000 0 H 2ch 24bit Integer 0 Ch Volume Value gt 1 Fro r Configure device Configure speakers USB 192 Software Specifications Applicable NuForce models DAC 9 DAC 80 LPS 192K U192S Supported Operating Systems Windows XP Windows 7 32 bit and 64 bit Mac OSX Digital Input USB B Supported Sample Rates 0 9 441 48 88 2 96 176 4 and 192
9. sic output A single sample rate must therefore be used as the common denominator For music playback in Windows 7 WASAPI mode Windows Audio Session API is the best sounding mode See WASAPI section Direct Sound Mode Because the USB input is asynchronous the DAC 80 will operate at a fixed sample rate Regardless of whether the music is recorded at 48k or 192k whatever actual DS format bit depth amp sample rate is selected that format will be the operating format Selection is made via the Audio Control Panel CPL section of the NuForce Stereo Audio Control Panel For the best sound quality in Direct Sound mode you will need to manually select the Audio Format so that it matches the music file format See screenshots below 16 bit 44100 Hz Stream Status ie pit 48000 Hz Stream Status 16 bit 44100 Hz NuForce DAC 80 Digital to Analog Converter When music is being played the Audio Format cannot be changed on the fly The music must be stopped before you can make the next change Note the message Stop Player Bits per Sampe i6bits 24bits NuForce 06 80 Digital to Analog Converter WASAPI Mode Some media players require a special WASAPI plug in to enable support for WASAPI Once installed and activated WASAPI can be selected as the default audio driver Below is a screenshot of Foobar2000 in Windows 7 after WASAPI plug in has been installed showing different supported device driver
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