I have now the A8, a Purifi amp from March Audio and B&W 703 S3, previous setup was Marantz PM6006 + CD6006, wharfedale EVO.
Very happy with the A8 upgrade, as I find it vastly superior to internal DAC of Marantz and clearly better than other DAC/amps I have laying around (Topping DX3, FIIO K7...