FiiO Announces The R7 Next Gen Music Streamer And Headphone Amplifier The new FiiO R7 music player has dual THX amplifiers and dual ESS DACs. It can support audio up to 768kHz 32-bit as well as DSD512, MQA. The Roon Ready player has multiple inputs/outputs as well as Bluetooth 5.0 with support for AAC, aptX HD and LDAC codecs.