07 17 41742 4bf4b0cd523c2240f5d658b370995c6f1

The EF6 from Hifiman

What's in a single number change? Moving from 5 to 6 should be an evolution of sorts, I mean the EF5 was a pretty powerful little tube amp that packed about 2.5W per channel and took little or no space in 2011. But that was then and this is now and the world o...