The Stu G 76 Park Helix/HX Pack with Tone Matched IRs seeks to capture the sound of Stu G’s 1976 Park 2x12 combo amplifier heard on countless recordings. We have Tone Matched each channel of the amp and the “Linked” input which runs both channels together. The Included preset and effects are built by Stu to replicate his pedalboard. Tone Matched IRs are labeled 1 for channel 1, 2 for channel 2 and L for linked and are designed so that any IR can be inserted into the preset and boom it’s like you just changed the amps input!