It's been strange to watch the HD595 be called a decent HD5/6X0 alternative, to great at its price point, to "the definition of mid-fi" over the years. Part of that is the impedance and price change, but I still think they're really good all-arounds for low impedance duties too. The upper Senns smoke them of course and they are certainly grainy, but I sold off SR225s and HHF1s because they got less use than the HD595s when an amp wasn't convenient or available (eventually the only use for any of the three when better phones were around). You could say the Grados do what they do better (and I'd no doubt reach for them for specific rock artists, cello pieces, etc.), but they also do a lot more generally wrong across the board.