Greg Koch joins forces with Tone City for the Lil Heat mini overdrive pedal | Guitar World
T-Rex Gristle King Overdrive Pedal - JRRshop.com
T Jauernig Gristle King V3 (Greg Koch Signed) | Reverb
T-Rex Engineering Gristle King Guitar Effects Pedal - Walmart.com
Tone City Lil Heat Greg Koch Overdrive Pedal - Andertons Music Co.
Greg Koch - My pedal board for the evening... | Facebook
Fishman Fluence Greg Koch Gristle-Tone – Thomann UK
Greg Koch Gear
Greg Koch Rig Tour - YouTube
Greg Koch Gear
Tone City Lil Heat Greg Koch Overdrive Pedal - Andertons Music Co.
Greg Koch - JAM pedals
Greg Koch - Gristle King Leans...get 'em while they're hot. I've got three ready to ship. My sig overdrive and clean boost device made by Tim Jauernig...go to gregkoch.com and click to