my main amp went down. NEed to set up a midi channle that puts out more DB. A led boost channel. Can each individual preset have its own Out put volume or is there only a global setting?
If you long press the left footswitch, it lets you adjust the gain. Depending on whether the left footswitch is in active or bypass, it will let you adjust input level or output level. The exact details are described in the H9 user manual.