iFi Audio Uno ultra compact usb audio dac / headphone amp. Tiny size with usb in, powered by the computer or phone - no power input. Has 3.5mm headphone output, rca output on the back, power match to switch from easy to harder to drive headphones and a built in EQ.
The EQ has three modes, indicated by a light on top of the unit - music, gaming and video. Use the EQ mode to match the A/V mode you're using! So simple. Music mode enhances detail and an engaging sound, Movie mode enhances vocals and Game mode makes low level sounds clearer and easier to hear.
If you are looking at something like a Schiit Fulla or Fiio E10k, this is a clever alternative. The volume dial switches it on /off, the rca pre-outs on the rear are volume controlled, perfect for going out to powered speakers. Uno features an ESS dac with MQA decoding, ideal for streaming music from Tidal Music. Includes a short usb c-a cable to connect to a computer.
iFi Audio Uno specs:
Output: 211mW @ 32 ohms, rated for headphones up to 300 ohms