Well, I guess this is what you get when you ask for opinion... a cluster...
Overall, I'd take Musical Fidelity. I've certainly never thought of them as etched ...meaning slightly harsh or grainy in any way... On the other hand I do agree that the 375BEE is a fine product... I recommend that you go back 10 to 15 years and look at feedback, forums and reviews starting with the A3CR, A3.2CR and work your way forward to the M3i M6i..... The good news is that you are looking at very nice pieces that will perform well regardless of your choice of MF or NAD.
Overall, I'd take Musical Fidelity. I've certainly never thought of them as etched ...meaning slightly harsh or grainy in any way... On the other hand I do agree that the 375BEE is a fine product... I recommend that you go back 10 to 15 years and look at feedback, forums and reviews starting with the A3CR, A3.2CR and work your way forward to the M3i M6i..... The good news is that you are looking at very nice pieces that will perform well regardless of your choice of MF or NAD.