I'm currently using (digital parametric) EQ in an active, tri-amped setup. While no EQ has zero negative influence on the sound, I usually find that the sonic advantages very often outweigh the sonic disadvantages...and below roughly a 100hz or so those sonic disadvantages seem to evaporate.
Should Equalizers make a comeback?
Some like warm, some like bright, some like neutral. Should hardware equalizers make a comeback? Basically aren't Marantz and Rotel amps just rolled off a tiny bit in upper end? In the recording world, you can buy a one box Focusrite mic preamp emulator that seeks to recreate the classics from the past (I'm sure it lacks in pure sound quality from the originals). Would something like this work for audiophiles?