Best Answer BillBee , 18 July 2014 - 03:15 AM
If you are talking about the classic greenback GT12 - the best way is to change to another speaker like a V30. The 75's early breakup is what they are known for. You could try dialing in less lows and highs and boost the mids but its not going to help that much. IMO a great speaker.
-BGo to the full post