Grimm Audio MU1

Product quality in hifi comes in 3 main forms: R&D time and expertise; component quality; and execution. This simple looking medium sized box has all three elements in spades. The result of 7 years R&D from several engineers at the top of their field combine with imaculate component selection and an execution of the highest order. If any audio product could embody the mantra of "profressionals make the hard things look simple" then it would be the MU1. For those who use Roon, and for many reasons I believe it the best solution for 99% of audiophiles, then the MU1 is the fuss-free end-game digital source.

New review from SoundStage Australia. Grimm Audio MU1 Digital Music Player. 

To my ears, Roon has always sounded a bit heavy/rich with a less dynamic, less exciting and less involving sound than music server players such as Audirvana. When you choose to use the MU1 AES-EBU or S/PDIF output (or LS1 output to LS1 speakers), then you are using the FPGA which totally eliminates that degradation – the resulting sound is full of energy, life, incredible resolution, depth and tonal beauty… all without imparting any harshness or brightness. You don’t need to listen long to hear the effect – just a bar or two will suffice.