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3D models of megaphones and acoustic horns

The collection gathers 3D models of megaphones, bullhorns and related sound-amplifying shapes. You will find handheld horns, acoustic phone amplifiers and decorative or prop versions prepared as STL files for 3D printing. It helps you compare how each design handles size, assembly and sound projection before you choose one. Polyzon does not confirm whether models are free, their price, license, official status, affiliation, safety or fitness. Check the current terms at the source.

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選定基準：Polyzon編集部 · 本文の更新日：2026年10月14日

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«3D models of megaphones and acoustic horns»

Models in this topic range from simple handheld megaphones and bullhorns to acoustic amplifiers that use a phone or tablet as the sound source. Some are designed as single-piece shapes, while others are split into parts for assembly or include moving elements such as a handle or trigger. There are also novelty and prop versions, including cheer-style horns, blaster-like shells and small tags or charms that borrow the megaphone silhouette.

When choosing a model, look at the dimensions and scale first, because a desk-sized amplifier and a wearable prop need different print volumes. Check how many parts are included, whether the author shows an assembly order, and whether supports are needed for overhangs. The material and settings listed on the model page also matter, especially for thin walls or parts that must fit together.

To refine the search, try synonyms such as bullhorn, loudhailer, acoustic horn, voice amplifier or phone amplifier. Related terms like cheer horn, sound reflector, prop blaster and speaker horn can surface models that use the same shape for a different purpose. If you want a specific use, combine those words with the device or setting you have in mind, such as smartphone, cosplay or desk.

FAQ

よくある質問

What types of megaphone models can I find for 3D printing?
You can find handheld megaphones, bullhorns, acoustic phone amplifiers and novelty or prop versions. Some are single-piece designs, while others are split into parts for assembly.
Do megaphone models actually amplify sound?
Passive acoustic designs can direct and focus sound from a phone or voice, but the result depends on the shape, size and material. Check the author's notes and photos of real prints to see what the design is intended to do.
What should I check before printing a megaphone STL?
Review the model dimensions, part count, assembly instructions and whether supports are needed. Also note the material and settings the author lists, since thin walls and tight joints can affect the final object.
How can I find more models like a megaphone?
Search for bullhorn, loudhailer, acoustic horn or voice amplifier. Adding a context word such as smartphone, cheer or cosplay can narrow the results.
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