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Compatible with Samsung Galaxy S4 Speaker Horn

Compatible with Samsung Galaxy S4 Speaker Horn, design preview, hero tilt

Design preview. Rendered from the file, not a photo.

The maker says it fits: Samsung Galaxy S4. See the proof

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What it does

  • Passive amplifier horn for the Galaxy S4 phone
  • Horizontal alignment fits desks and shelves
  • Boosts phone speaker volume with no battery cost
  • Versions for bare phone or with Otterbox Commuter case
  • A small upgrade for music and podcast listening

You drop the phone into the horn and the music gets noticeably louder without any battery cost. This passive amplifier uses the shape of a horn to boost the phone's built-in speaker, no electronics required.

The horizontal layout sits flat on a desk or shelf, so the phone is easy to glance at while it plays. Two slot versions cover a bare phone or one with an Otterbox Commuter case.

Use it for kitchen audio, home office music, or weekend podcast sessions on the patio.

Not affiliated with, endorsed by, or sponsored by Samsung. Samsung and its product names are trademarks of their respective owners.

6.1k downloads in the maker community. That is interest in the design on the site it came from, not our sales.

What it fits

The maker says it fits: Samsung Galaxy S4

That is the maker's word, not a fit we measured. Check the size below against your own.

  • Samsung Galaxy S4 (model S4)From the maker's own listing title, checked 2026-08-13. See the original post

Brand names here only say what this part fits. We are not connected to those companies, and they did not make or check this part.

What you get

  • This design prints as one piece.
  • Nothing else to print or buy for this to work.

What it is made of

Designs like this print well in PLA. Compare the materials.

Printed plastic is strong for its size, but it is not metal. We have not load tested this design, so we do not publish a weight rating. Keep it out of a hot car and away from open flame.

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Who made this design

Designed by rophos. We did not draw it.

Shared under BSD. See the original design