Making big sound from small speakers might sound trivial, however many things have to be done exactly right to avoid coloration, distortion and compression. Technically, it is a demanding challenge. Most people are used to things getting smaller and more powerful all the time, this is evident in computers, tablets and smartphones - so it seems logical that the same trend should exist for speakers.

Speakers operate under some fundamental laws of physics. Sound output is the result of bore x stroke - the lower the frequency the more volume has to be displaced to keep the same sound level. When making the diameter of the speaker smaller the stroke has to be increased to produce the same volume. This also means  the speaker cone must travel a longer distance in the same amount of time as a larger speaker playing at equal loudness.

Small satellite speakers have been around for decades, but they play only a limited bandwidth of sound, typically from 300 to 13khz. In this digital age these compromises are not acceptable. Earthquake Sound has invented and patented many advances in speaker technology over the years, and many of these inventions make up the foundation for the Atom series. From the XLT motor/chassis geometry, high power no-burn voice coils to  SWS (shallow woofer system)
the Atoms are packed with technology that enables them to produce extremely powerful wideband audio with unheard of  fidelity and precision.
 
First ever at this size with linear response from 150 to 21k  @50 watts power capability and 85 db sensitivity and a low end roll off so gentle that it can be used with a woofer crossed at 100 hz for high fidelity full range audio. Normally a crossover at 300hz is needed.