The Trombone UM-480 UM4-480 is a 480-watt power amplifier supporting 220V AC power supply and 24V DC backup. It offers four input channels and is compatible with multiple line voltages including 30, 70, 100, and 120 volts.
Encased in a 19-inch rack chassis, this amplifier fits standard rack systems commonly used in public warning and music broadcasting setups. It provides reliable operation with backup power capability to ensure continuous functionality.
Use Trombone UM-480 UM4-480 75014 when matching project requirements with the equipment already specified for the job.
Compare the listed details with the wiring method, enclosure needs, mounting style, and site requirements.
Within Public Warning Systems, Music Broadcasting, this product can be reviewed together with similar parts and accessories.
For replacement work, compare the existing part number, electrical requirements, mounting conditions, and installation environment. Use Trombone UM-480 UM4-480 75014 as a starting point, then confirm the final choice against the exact project specification.
Reviews: 2
Average score: 5
Electrical Contractor
11/06/2026
The Trombone UM-480 UM4-480 amplifier integrates well into our standard 19-inch rack setup. Its four input channels provide flexible connectivity options, and the 24V DC backup ensures continuous operation during power interruptions. We appreciated the compatibility with multiple line voltages, which made it easier to deploy across different sites without needing additional transformers.
Electrical Contractor
19/03/2026
The Trombone UM-480 UM4-480 amplifier integrates smoothly into our public address system rack. The multiple input channels and voltage options made wiring straightforward, and the 24V DC backup adds valuable reliability for emergency broadcasts. Installation was clean with no unexpected issues, and the unit’s consistent output meets the site’s audio requirements well.
Questions: 3
Safsale Product Desk
24/02/2026
What should be reviewed in the manufacturer documentation?
The administration's response:
Review the full model number, dimensional data, rating tables, material notes, mounting information, and any listed connection details. The short product title is helpful for search, but the datasheet should be the main reference before ordering.
Safsale Product Desk
09/01/2026
What should be compared with the project documentation?
The administration's response:
Compare the product name, full model number, rating values, dimensions, mounting notes, and connection details with the project documentation. This helps keep the selection process tied to documented specifications rather than only the product title.
Safsale Product Desk
16/06/2025
What should be checked before ordering this item?
The administration's response:
Compare the full model number, listed dimensions, rating values, mounting details, and connection requirements with the project documentation. When available, review the manufacturer datasheet before ordering so the item can be matched against the required specification range.
