I have used a DAC, JDS Labs ODAC and an O2 amp for the last 5 or 6 years to power a Bose Quiet Comfort 25 at work and a Beyerdynamic DT880 (250 ohm) at home to supply electricity - great setting. Now I use DROP Senn HD-6XX, SMSL SanSkrit 10th DAC and SMSL SP200 THX 888 AMP Amplifier. It was a good move for me. I was happy with the JDS set, but I can't stop looking at the Audio Science Review website, so you know. SanSkrit and SP200 are an audible upgrade.
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