Questyle CMA Fifteen is Questyle's new Flagship DAC/Headphone Amp commemorating the 15^th anniversary of Questyle’s revolutionary Current Mode Amplification Technology by selecting the flagship DAC ES9038PRO. Jointly launched CMA Fifteen with ESS, CMA Fifteen supports 32bit/768K and DSD 512 master band formats. Plus, CMA Fifteen supports MQA full decoding and LDAC Bluetooth, brings Apple music lossless work to your high-end audio system, and is able to be used as a Preamp for your record player.