ResonantLive Sound Archive

Equipment file · Power amplifier series

Macro-Tech amplifier

Crown · Late 1980s

Evidence status · documented

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

Crown's Macro-Tech amplifiers used Crown's patented Grounded Bridge output topology for large voltage swings without stacking output transistors in series. Later models such as the MA-5002VZ added a variable-impedance (VZ) power supply. Crown marked the line's run with 2008 anniversary editions.

Introduced
Late 1980s
Category
Power amplifier series
Intended use
Touring and installed sound
Production
Crown International; long production run

Equipment photographs · 1

Crown Macro-Tech MA-5002VZ amplifier, service manual

1 / 1 · Crown Macro-Tech MA-5002VZ amplifier, service manual

Crown Macro-Tech MA-5002VZ amplifier, service manual·Crown International·© Crown International; used for identification and historical commentary

Why it mattered

  1. 01

    Grounded Bridge made amplifiers tolerant of the difficult loads found on tour.

  2. 02

    It became a reference touring amplifier platform from the late 1980s to the 2000s, following the [[crown-dc300|DC300]].

Engineering record

Output topology
Patented Grounded Bridge[1]
Power supply
VZ variable-impedance supply on later models[1]

Original pricing

No reliable period price located

2026 equivalent

Not calculated without a reliable original price.

Public price evidence was not sufficient to publish a defensible original figure.

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

Sources

  1. 1Macro-Tech MA-5002VZ Service ManualCrown International · manual · 2000
  2. 2Crown Unveils Macro-Tech Anniversary Edition ModelsProSoundWeb · archive · 2008-02-01

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