Mike Senior

“Above all, however, resist the temptation to cover the entire room in foam--I can't tell you how often college studios in particular succumb to this seductive error. It is quite simply a recipe for disaster, because it hoovers up the top half of the room's reverberation, making for an extremely unnatural working environment. Although it makes good sense to damp down strong early reflections that can potentially comb filter your frequency response, you also want your monitoring environment to bear at least a passing resemblance to real-world living rooms and offices. If you plaster your whole studio in foam, you'll basically be mixing for people in padded cells--perhaps not the most lucrative demographic to set your sights on!”
― Mike Senior, Mixing Secrets