Topping D30 Dsd Usb Dac Decoder +a30 Amplifier + Vx3 Bluetooth Power Amplifier Set Support Usb Dac Home Hifi Set - Home Theater Amplifiers - AliExpress
Archimago's Musings: MEASUREMENTS & LISTENING: Topping D30 DAC by Greg Dunn. (And briefly, more USB cable nonsense.)