ResonantLive Sound Archive

Equipment file · Transfer-function measurement system

SIM

Meyer Sound · 1986; SIM II in 1991

Evidence status · verified

Claims in this file are tied to item-specific sources.

Source Independent Measurement enables transfer-function analysis in real venues.

Introduced
1986; SIM II in 1991
Category
Transfer-function measurement system
Intended use
Real-time alignment and optimization of reinforcement systems
Production
1986 onward in successive generations

Equipment photographs · 1

SIM II measurement system

1 / 1 · SIM II measurement system

SIM II measurement system·Meyer Sound·© Meyer Sound, used for identification and historical commentary

Why it mattered

  1. 01

    Allowed engineers to compare a source signal with the measured room/system response in real time.

  2. 02

    Made phase, delay, polarity, and frequency-response evidence central to repeatable touring-system alignment.

Engineering record

Method
SIM uses source-independent transfer-function measurement, allowing program material—not only test sweeps—to serve as the stimulus.[1]
SIM II speed
A full response measurement could be captured in about 13 seconds, compared with minutes and many operations on earlier tools.[2]

Original pricing

No reliable original price located

2026 equivalent

Not calculated without a reliable original price.

No verified 1986 or 1991 system list price was found.

Use in the field

SIM became a foundational field tool for system technicians working under short load-in and sound-check schedules.[3]

Manuals & original documents

Sources

  1. 1Examining Meyer Sound's SIM 3Live Design · reference
  2. 2Evolution of large-scale system optimizationProSoundWeb · reference
  3. 3SIM II Hall of FameMeyer Sound · reference

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