Fosi Audio MC331 4-in-1 HiFi Tube Preamp DAC Bluetooth Amplifier + 24V Adapter

Fosi Audio MC331 4-in-1 HiFi Tube Preamp DAC Headphone Amp Bluetooth Digital Amplifier + 24V Adapter. The Fosi Audio MC331 combines a DAC, amplifier, preamplifier, and headphone amplifier in a single unit.

eBay