page_title: Acoustic transformer
hierarchical_section_title: Acoustic transformer
caption_attribution_description: English: Horn loudspeaker with compression driver and phase plug.
context_page_description: In a horn loudspeaker, the term acoustic transformer or acoustical transformer may refer to either of two components:
  Horn, which attaches to the compression driver unit
  Phase plug, a component within the compression driver, the interface between the diaphragm and the horn
context_section_description: In a horn loudspeaker, the term acoustic transformer or acoustical transformer may refer to either of two components:
  Horn (acoustic), which attaches to the compression driver unit
  Phase plug, a component within the compression driver, the interface between the diaphragm and the horn
caption: Horn loudspeaker
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