Typical Early Edward Van Halen Studio Setup Diagram

1. MXR e.q. set up as midboost (* only occasionally used depending on the guitar) 

2. Marshall plexi Super Lead, unmodified, although simple modifications such as a cascaded input stage or added gain through capacitor/resistor exchanges may have been made. 

3. Ohmite VARIAC set to approximately 90 Volts A/C 

4. Dummy Load 

5. MXR Flanger 

6. MXR Phase 90 (** This was sometimes put in front of the amp instead of after the dummy load) 

7. Echoplex EP3 

8. (***Equalization sometimes added prior to power amp) 

9. H & H power amp 

10. Various Marshall cabinets (sometimes two, sometimes four) used with various Celestion and JBL speakers