The U.S. aircraft register, updated daily
Parts

Audio Amplifier

No failure report names the audio amplifier. 7 FAA approvals let 4 companies make a replacement audio amplifier, Cabin Management Solutions holding the most (3).

Approved replacement parts 7 parts manufacturer approvals

A parts manufacturer approval (PMA) lets a company other than the aircraft's maker make a audio amplifier and sell it as an approved part for the models named. These are the companies holding such approvals for a audio amplifier:

For these models most: Gulfstream GV-SP G550 (3), Boeing 737 (2).

MakerPartReplacesFitsGrantedStatus
Cabin Management SolutionsAUDIO AMPLIFIER MAGAZINE 209-0001-03Modification ArticleGulfstream GV-SP2026-09-11current
Cabin Management SolutionsAUDIO AMPLIFIER SUB MAGAZINE 209-0001-02Modification PartThe Boeing Company 737-700 Series2023-08-29current
Cabin Management SolutionsAUDIO AMPLIFIER 209-0001-01Modification PartThe Boeing Company 737-700 Series2023-08-29current
Dpi Labs INCAudio Amplifier Module MS18116-4MS18116-4Gulfstream GV-SP2014-07-10current
Dpi Labs INCAudio Amplifier Module MS18116-4MS18116-4Gulfstream GV-SP2014-06-05current
B/E Aerospace INC, Avionics DivisionAudio Amplifier 170003-13Airbus 170003-13Airbus A310-203, -221, -2221999-05-13current
Sextant In-Flight SystemsAudio Amplifier 170003-13Airbus 170003-13Airbus A310-203, -221, -2221999-05-13current

Sources: the FAA's service difficulty reports since 1995 (a report is a part that failed and was fixed, as filed by an airline, repair station or owner; the count shows reporting as much as reliability) and the parts manufacturer approvals in the FAA's Dynamic Regulatory System. The part name is the reporters' and the approval holders' own words, reduced to the first plain words so that spellings meet.