NAS manufacturers even provide iOS and Android apps to view and play these files. You can also choose to store your Hi-Res audio files on a NAS (Network Attached Storage Device) which is designed to share files over a network. This requires the installation of DLNA server software on the computer on which the files are stored (Serviio software for example). Therefore, 24-bit/192kHz FLAC files and DSD 64, DSD 128, DSD 256 and DSD 512 files can only be played using the DLNA protocol. The DLNA/UPnP protocol should be used if you want to listen to studio-quality audio files as AirPlay technology doesn’t support files encoded over 16 bits and 48kHz. It delivers 2 x 100 watts into 4 and 8 ohms. It can play music shared over the local network, access the main online music services and even play audio from a TV via its HDI eARC connector. The NAD M10 v2streaming amplifier features a large color touchscreen. To access the different sources that share audio content over the local network, the connected amp uses the DLNA/UPnP protocol, the AirPlay protocol, or both. In a nutshell, a WiFi connected amp is a combination of an amplifier and a network media player. It is also possible to control the volume, put the amplifier into standby mode and take it out of standby mode directly in the app. Accessing your music and creating playlists is incredibly easy. An internet connection allows you to access online streaming services either directly via the amplifier’s interface, or using a smartphone app. Once connected to the local network, the connected amplifier can receive audio streams from numerous sources (computer, tablet, NAS, etc.), usually using a smartphone to access and control playback. This network is usually established by the Internet router to which you simply have to connect the amplifier using an Ethernet network cable or a WiFi connection. WiFi and/or Ethernet connected amplifiersĬonnected amplifiers equipped with an Ethernet and/or WiFi controller can be connected to the local network and to the internet via the home network. You can benefit from these codecs with the Elipson Music Center Connect HD (aptX HD), for example. The aptX HD and LDAC codecs provide even better sound quality (up to 24 bits and 48kHz for aptX HD and up to 24 bits and 96kHz for LDAC). However, a Bluetooth-enabled connected amplifier compatible with the aptX audio codec will provide sound quality close to that of an audio CD. With a Bluetooth amplifier that only supports the standard audio codec (called SBC), which is limited to 350 kbits/s, the sound is highly compressed and therefore deteriorated. In addition, the sound quality is affected by the relatively low speed of Bluetooth connections and the audio codec used. Any walls and furniture that are in between the smartphone and the connected amplifier can disturb or even block the signal. Firstly, its range is limited to about ten meters and the limited power of Bluetooth transmitters makes this connection very sensitive to physical obstacles. However, Bluetooth technology does have a few drawbacks. It’s also capable of accessing web radios, as well as many streaming services. The compact Yamaha WXA-50 connected amp lets you stream all your music from a smartphone, tablet or computer via Bluetooth, AirPlay or DLNA.
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