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Celestion MD500

Reconstruction of the compression driver dome. Goal: functional equivalence with the original, verified by measurement and by listening.

The Celestion MD500 driver disassembled into its components on a black background

Data sheet

Component
Compression driver dome
System
Celestion MD500
Origin
Discontinued component, no longer available
Status
Prototyping and measurement
Materials
Light alloy, structural adhesives stable over time
Reference
Intact original unit surveyed in the laboratory
Macro photograph of the concentric structure of spider and cone

Equivalence criteria

  • Moving mass

    Within tolerance of the surveyed original

  • Frequency response

    Limited deviation across the usable band

  • Impedance

    Curve matching the original

  • Distortion

    No higher than the reference unit

Do you own an MD500 you want back in service?

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