For this review, I used the AKG Q701 and LCD-3 and Objective 2 Amplifier. The constant DAC was the Cirrus Logic CS4398.

Build Quality:

“The Soloist SL headphone amplifier is pretty much a solid chunk of 2mm thick aluminum. Everything is bonded together nicely and it is smooth.”

Usability:

“I would finally say that the Burson’s are more transparent than the O2. Transparency as in which makes it sound more ‘real’, where it sounds like you aren’t listening to a unit, but to the music itself. And this would have to go to the Burson’s which had a better layering than the O2’s. Layering as in the separation of mids from the vocals.”

Overall:

“I’d say that the Burson Soloist SL with the LCD-3 make a good combo in terms of how well the Audeze LCD-3 already layers.”

Original post here: http://www.head-fi.org/t/649113/new-burson-soloist-sl-headphone-amp/135#post_9531497