I think a “midrange” tone control is too undefined a parameter. I use a C-J line stage that has EPL loops…same as tape monitors…and a Schiit Lokius to help add or subtract color from recordings. Not as good as parametric but way simpler to use. Maybe you could score a used McIntosh C48, C49, or an MA-7900 or MA8900? These have 5 rotary EQ controls.
