I was using a Bryston SP 1.7 as my 2ch pre/dac with a 3BST amp and it sounded really good , tried some newer DAC's out of curiosity , some sounded good but not better, tried Wyred4Sound DAC2, Denafrips Ares R-2R DAC , even bought a Benchmark DAC 3 , ended up selling them all , the SP 1.7 was just more musical. I had seen the favorable reviews on the B1353/dac and found one almost new that I could afford I could not resist. I am glad I didn't. The sound with this amp is so much more natural, relaxed , and resolving at the same time, just solid, I hear new things in recordings I should know by heart. I know it is not just the amp,it has got to be the new DAC and Pre-amp section all together. I didn't know my Cornwalls could sound so good.