Why it mattered
- 01
This equipment marks a change in how live systems were designed, deployed, controlled, or heard.
- 02
Its importance is assessed in the context of professional reinforcement rather than studio or domestic listening.
Engineering record
- System role
- The profile is being expanded from manufacturer documentation and independent archival sources; unsupported numerical claims are intentionally excluded.[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
Named deployments and users are included only when a citable source connects them directly to the equipment.[1]
Manuals & original documents
No authoritative manual or original document has been located for this profile.
Contribute to the record
Know more about UM-1 stage monitor?
Corrections, firsthand information, original documents, and credited photograph sources are welcome.