Frequently asked questions
Yes, a regular bottle more than triples the physical volume of the Sodapop speaker cabinet, enabling the speaker to push more air and produce over 10db louder sound! For the human ear, this will sound approximately twice as loud.
This is fun to experiment with! You will get a different sound and a little bit more bass, but to fully make use of a larger bottle you need bigger speaker elements, this is something we are working on for future models of the Sodapop speaker.
You can watch this video from Unbox Therapy where they try with different sizes of bottles:
And this video from Stu´s Reviews:
Well, the physics is roughly as follows: very general, sound waves are produced when a flexible membrane (diaphragm) attached to an electromagnet is vibrating in the speaker element. This membrane pushes the air inside of the speaker cabinet to produce high and low frequencies. The bottle more than triples the physical volume of the Sodapop speaker cabinet, enabling the speaker to push more air and produce over 10db louder sound in the 60-250hz audio spectrum range (where is where you’ll typically find the «bottom» of the bass and kick drums etc), than without the bottle.
In addition, the elastic walls of the bottle also boost both the high and low frequencies, as it becomes a “part” of the membrane and helps to push the air inside the closed cabinet. This results in the feeling of warmth in the bass without loss of definition. The problem with other small speakers with bass boost (they all use a passive bass membrane inside a very small cabinet), is that they only boost the bass and this makes the music sound boomy and less defined.
So, there you have it, real bass requires real space.