Sometimes, I just need to make a small adjustment to a particular song while I'm working. Having an EQ with knobs is super convenient, because it's better than having to find Roon's DSP settings. I don't have perfect pitch, but I have a good ear for what sounds good to me. I usually know what frequencies I need to adjust to get the sound I'm looking for.
Audio chain: Roon (with convolution filter for Sennheiser HD800S, Headroom -5 dB) -> Denafrips Ares II with OS -> Schiit Lokius -> (Singxer SA-1 | McIntosh MHA-200) -> Sennheiser HD800S
Audio chain: Roon (with convolution filter for Sennheiser HD800S, Headroom -5 dB) -> Denafrips Ares II with OS -> Schiit Lokius -> (Singxer SA-1 | McIntosh MHA-200) -> Sennheiser HD800S