1. Custom Audio Electronics - 3x preamp 📝️
2. Marshall 9004 1990 📝️
3. Marshall DRP-1 - Direct Recording Preamp 📝️
4. Marshall JMP-1 preamp 📝️
5. Mesa Boogie Rectifier Preamp - both sides 📝️
6. Mesa Boogie Rectifier Preamp 📝️
7. Mesa Boogie Studio Preamp 📝️
8. Mesa Boogie TriAxxis Preamp 📝️
9. Rocktron Gainiac 📝️