KEF LS 50 Wireless II active speakers are compatible with HD and Ultra HD on Amazon Music Unlimited. This novelty, which follows the active Roon Ready certification arrived last April, opens the way to music streaming with higher quality and also in high resolution.
Through a subscription to Amazon Music Unlimited you can listen to more 75 millions of songs in HD, i.e. with a sampling rate fixed at 44, 1 kHz / 16 – bit , corresponding to CD quality. The songs in Ultra HD are instead more than 7 million and further raise the level, guaranteeing listening in high resolution with a quality of 192 kHz / 24-bit. No surcharge is required: Amazon has long since eliminated the cost previously required to access HD and Ultra HD streaming.
We remind you that the LS 50 Wireless II are the second iteration of the active speakers with wireless connectivity . This version shares technology Metamaterial Absorption Technology (MAT) with LS passive speakers 50 Half. The amplification section consists of a Class A / B amplifier of 100 W for the tweeter and a Class D amplifier from 280 W for the mid / woofer (one for each in each diffuser). The LS 50 Wireless II are equipped with AirPlay 2 , Chromecast and in addition to Amazon Music services they can also access Spotify (Connect), Tidal , Qobuz , Deezer and at internet radio .
The connection between the right and left speaker can be made using the supplied Cat6 cable (with an anus quality at 96 kHz / 24 – bit) or in wireless mode (with a quality up to 192 kHz / 24 – bit). The equipment is completed by the HDMI port with eARC and compatibility with songs in MP3, M4A, AAC format , FLAC, WAV, AIFF, ALAC, WMA, LPCM and Ogg Vorbis.