Smartphone passive audio amplifier device
Reference:
Manufacturer: Image Impressions
A wooden smartphone audio amplifier device is a passive acoustic device that enhances the sound from your phone’s speaker without power. The candle holder is treated with a clear coat, you can choose to receive your candle holder with no finish and decorate it yourself. Dimensions: 12cm w) x 4.5cm(l) x 7.2cm(h). Opening for smartphone: 7.2cm(w) x 0.9cm(l).
Data sheet
| Material | Wood |
| Item finish | Clear coat |
More info
-
Principle of Acoustic Impedance:
- These amplifiers rely on the principle of acoustic impedance.
- As sound waves travel through the air, they collide with the sides of the wooden cavity, merging to amplify or cancel each other out.
- The resulting change affects volume, clarity, and direction of sound.
-
Design and Shape:
- A conical or trumpet-shaped cavity tends to give better results.
- The cavity starts narrow where sound is generated and gradually opens.
- High frequencies receive a boost, while mids drop out, and lows remain similar.