The cylindrical speaker features two high-performance drivers, a built-in bass port and digital signal processing software to extend frequency response on the high end while providing tighter low ends for deeper bass response.
Philips DoubleBASS uses the powerful processing of the system to detect ultra-low frequencies and then recreate them within the audible frequency range of the subwoofer, giving the impression of delivering bass down to an amazing 20Hz.
And Project SHIELD provides fidelity and dynamic range never before available on a portable device, through its custom, bass reflex, tuned port audio system -- with twice the low-frequency output of high-end laptops.