3Computer audio via the DAC-V12.1 Configuring Windows OSIt is important that Windows OS is appropriately configuredfor audio playback and that the DAC-V1 Windows Driverapplication is installed before the DAC-V1 is connectedand switched on.2.1.1 Windows Driver InstallationThe DAC-V1 Windows Driver can be downloaded from:www.naimaudio.com/hifi-products/pdt-type/DAC-V1Note: The DAC-V1 Driver application is compatible with32bit and 64bit versions of Windows 7 and Windows 8.Note: A Windows OS computer running multiple useraccounts will require a separate installation of the DAC-V1driver application for each account.Download the file, double-click on the DAC-V1 Driver iconand carefully follow the installation instructions.Once the DAC-V1 Windows Driver is installed, and oncethe DAC-V1 is connected via USB and switched on, theWindows Sound Control Panel can be configured to selectthe DAC-V1 as the default audio output device.Section 2.1.2 below describes configuration in Windows 7and Section 2.1.3 describes configuration in Windows 8.2.1.2 Windows 7 Sound Control Panel ConfigurationThe Windows 7 screen images and captions followingillustrate and describe selection of the DAC-V1 as thesound output device.2 Computer audio via the DAC-V1The default audio playback applications for Windows and OS X computers are usuallyWindows Media Player and iTunes. However, a wide variety of alternative applicationscan be used which may provide enhanced functionality and superior audio performance.This section of the manual covers selection of a DAC-V1 as the default USB connectedsound output device on Windows and OS X computers. It then continues to describethe fundamental principles for optimising the performance of Windows and OS X audioplayback applications when using the DAC-V1.Due to the rapidly changing nature of software development it is not practical to includewithin this manual definitive and up-to-date setup information for every audio playbackapplication that might potentially be used with the DAC-V1. This being the case, furtherand updated information on the use and optimisation of audio playback applications withthe DAC-V1 can be found at: www.naimaudio.com/knowledge-base. We recommendthat the following section of this manual is read in conjunction with the DAC-V1Knowledge Base and that you periodically search the Knowledge Base for updatedinformation on audio playback applications.The Naim Forum at http://forums.naimaudio.com/forums can also be a useful resource ofinformation on optimising computer audio playback.• Under the Playback tab of the Sound control panelselect the DAC-V1 as the default device. Click onProperties to open the DAC-V1 properties pane.• Open the Windows Hardware and Sound ControlPanel and select Manage audio devices.ImportantThis section of the manualpartly describes thebehaviour of the DAC-V1following switch-on. Pleasehowever read Section3 on installation beforeswitching on your DAC-V1Windows is a registered trademark of Microsoft Corporation in the United States and other countries.OS X is a trademark of Apple Inc., registered in the U.S. and other countries.