He does have a point about something MAYBE. He feels that the KPA cuts off at the 125hz area or so, per his video, and states that using analyzer confirmed his suspicions. Putting the studio EQ post amp. And a bump at 125 hz alittle does help with warmth and thickness in some of the profiles, at least through my VHT power amp and cab, not sure how this would translate to direct recording, so don't take my word as gospel. Try it though, I have a 3 db bump on some of the high gain patches ( Engls, diEzels, fortins) and it seemed to add a nice extra kick and thickness to the tone.