Lehmann Black Cube Linear USB

Excellent sound quality and the ability to tweak the device to suit the impedance of your headphones.

I would prefer a greater number of inputs, other than that there is nothing bad.

Excellent sound with my HD600 headphones Excellent build quality Flexible inputs and easy to set up. No external power supply

There is a relay click between tracks when using the USB input which I guess could be annoying with headphones with limited sound insulation. That's about it

Sound Quality. Will drive any headphone regardless of impedence.

More than one input would be good.

Excellent sound with my HD600 headphones

There is a relay click between tracks when using the USB input which I guess could be annoying with headphones with limited sound insulation.That's about it