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