1. Ken Kesey and Ram Rod | “Can You Pass the Acid Test?

2. Owsley "Bear" Stanley | The alchemist's tools

3. (Lawrence “Ram Rod” Shurtliff) | Ram Rod’s Merry Pranksters style jumpsuit

4. [Avalon Ballroom] | Handbills from the height of the psychedelic revolution

5. [Hells Angels] | Party stereo system — including the earliest Grateful Dead speakers

6. Grateful Dead | The earliest surviving Grateful Dead road case

7. Jerry Garcia | Jerry’s original twin

8. Jerry Garcia | A veteran of too many gigs to count...

9. [Power Amplifier] | Owsley’s early sound experiments, used at Altamont

10. [Power Amplifier] | Owsley’s early sound experiments, used at Altamont

11. [Power Amplifier] | MI-200, used at Altamont

12. [Power Amplifier] | MI-200, used at Altamont

13. [Power Amplifier] | Part of Owsley’s P.A. experiments, used at Altamont

14. [Power Amplifier] | Part of Owsley’s P.A. experiments, used at Altamont

15. [Power Amplifier] | Part of Owsley’s P.A. experiments, used at Altamont

16. Altec Lansing | H-811 Tweeter used at Altamont

18. Jerry Garcia and Mickey Hart | Rotating sound synthesizer pedal, used by the Dead

19. Owsley "Bear" Stanley | Wardrobe case, for Nudie suits and to hide his creations

20. Lawrence “Ram Rod” Shurtliff | His reel-to-reel, used by Owsley Stanley and Bob Matthews

21. Ron “Pigpen” McKernan | Shirt worn onstage at Sound Storm, 1970

22. Lawrence “Ram Rod” Shurtliff | “Give me an A to tune to”

23. Grateful Dead | “Business always had to be conducted”

24. Courtenay Pollock | Stage-used “Geometriart” tie-dye speaker cover, ca. 1971

25. Courtenay Pollock | Stage-used “Geometriart” tie-dye speaker covers, ca. 1971

26. Grateful Dead, and New Riders of the Purple Sage | Vintage concert poster — the cancelled show

27. [Jerry Garcia] | Garcia’s mixing board, from his Stinson Beach home

28. Electromusic/CBS | Leslie preamp, ca. 1965

29. Jerry Garcia | One of the rarest vintage guitar effects

30. Bob Thomas | Steal Your Face logo, printed by Thomas and given to Ram Rod

31. Herb Greene [photographer] — [Grateful Dead] | Portrait of the Dead, signed

32. [Neal Cassady] | “Cowboy Neal” flexing

33. Herb Greene [photographer] — [Neal Cassady] | Portrait of Cassady, signed by Greene

34. Wall of Sound | Purple road case, custom built for a McIntosh amp

35. Wall of Sound | Orange road case, custom built for a McIntosh amp

36. Wall of Sound | The amp that made Garcia's Twin “sound huge”

37. Wall of Sound | MC 2300, for the vocal cluster

38. Wall of Sound | MC 2300, for the piano cluster

39. Wall of Sound | MC 2300

40. Wall of Sound | Bob Weir’s MC 2300

41. Wall of Sound | MC 2300

42. Wall of Sound | MC 2300, for the piano cluster

43. Wall of Sound | One of the Dead's first MC 2300's

44. Wall of Sound | Weir’s cab

45. Wall of Sound | One of Garcia’s cabs

46. Wall of Sound | Bass cab

47. Wall of Sound | Alembic speaker cabinet

48. Wall of Sound | Handmade speaker cabinet

49. Wall of Sound | From the centerpiece vocal cluster