I have an EQ, Luxman G11 - completely recapped and brought back to spec. This was a $500 EQ in the day. I use it with my Cary tube preamp, Monarchy amps, Usher speakers. I have it connected to my system using a home brew selector box (like a tape loop) so I can remove it from the circuit entirely. Like using it for some poorly mixed material or live recordings where the bass and/or highs are rolled.
Even with the EQ in the circuit and set to neutral settings - very hard to detect. So, in my opinion they can be used in a high system but best have a set up where it can be isolated from the signal path
Even with the EQ in the circuit and set to neutral settings - very hard to detect. So, in my opinion they can be used in a high system but best have a set up where it can be isolated from the signal path