ResonantLive Sound Archive

Equipment file · Active concert loudspeaker

JM-3

McCune Sound / John Meyer · 1971–72

Evidence status · documented

Identity and core specifications are documented; some historical fields remain unavailable.

Active loudspeaker system built by John Meyer and Bob Cavin at McCune; used at the 1972 Four for McGovern concert.

Introduced
1971–72
Category
Active concert loudspeaker
Intended use
Active concert loudspeaker
Production
1971–72

Why it mattered

    Engineering record

    No technical figures are published here until a working source confirms them.

    Original pricing

    Not documented

    2026 equivalent

    Not calculated without a reliable original price.

    No sourced price has been located.

    Use in the field

    No named deployment could be tied to this exact item by a checked source yet. Know of one? Suggest it on the contribute page.

    Manuals & original documents

    No authoritative manual or original document has been located for this profile.

    Sources

    1. 1McCune Audio/Video/LightingWikipedia · reference
    2. 2Bob CavinWikipedia · reference

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