I run a Metrum Octave Mk II with my Zu Essence speakers. My speakers have the upgraded drivers so they are probably very similar to your Druids. I am very pleased with the Octave's sound in my system. It is a very analog sounding DAC. It is neither forward nor laid-back in its presentation, just right. I would second any suggestions recommending the Octave with any Zu speakers. Consensus seems to be that the Metrum Hex is a significant improvement over the Octave, but it is a bit pricier. The Octave is never shrill yet it is quite detailed. It images with great definition and it presents a wide, envelopping, soundstage. What I like about it the most about it is its pacing and rhythm. It is a very engaging DAC. I hope this helps...