Hierarchy classification:

1. top of the aat hierarchies
2. Objects Facet
3. Furnishings and Equipment (hierarchy name)
4. Tools and Equipment (hierarchy name)
5. equipment
6. [equipment by process]

Narrower term/s

• carrier amplifiers
• direct current amplifiers
• sound amplifiers[+]
  • audio power amplifiers
  • funnel horns

Anotations

Scope note:

Devices that increase the power level of quantities such as signals, electric currents, or mechanical forces, often used in electronic equipment such as radio and television receivers and audio equipment.