I recently met a local BC'er who was using a TH pre-amp and mentioned this post I read on TB years ago. The words are not my own and if I recall correctly from...Eubert on TB? I think he's credited in the post. He was basically comparing the Tech 21 Sans amp bass di box and then spoke about his experience with the Tone Hammer. Basically with the AGS button engaged the TH parameters become more interactive and work differently than in clean pre-amp mode. Read on... "With the AGS off, t