Authentic Angus Young Device: Zoom G1 Four Firmware: 2.00 Name on device: ACDC Optimized for: Phones/Speaker Effects chain: Patch comments: The patch is based on Angus Young's rig settings, according to his Technician. Sounds authentic to me. My guitar: Passive bridge p/u Guitar tone set to 7 My pickups are pretty hot, so your grit may vary. Spoiler: Patch settings Effect: "TS Drive" (Overdrive / Distortion), active - "yes" "Gain" = 12"Boost" = On"Tone" = 42"Volume" = 82 Effect: "MS 800" (Amp simulator), active - "yes" "Input" = HI"Bass" = 30"Middle" = 30"Treble" = 30"Presence" = 10"Gain" = 35"Volume" = 55 Effect: "MS4x12GB" (Cabinet), active - "yes" "MIC" = ON"D57: D421" = 77"Hi" = 50"Lo" = 50 Effect: "ZNR" (Dynamics), active - "yes" "Detect" = GTRIN"Depth" = 80"Threshold" = 30"Decay" = 0 Effect: "Air" (Reverb), active - "yes" "Size" = 32"REF" = 5"Mix" = 65"Tail" = On Patch Volume: 100 DSP Load: 68% Note: This is a patch file, you will need to download and install the ToneLib-Zoom software to use the patch.