Your most dynamic listening experience lets you literally see sound resonating from the dB1 doubleBASS. Where rich resounding bass notes form a backdrop to crystal-clear, pitch-perfect, audio details. With a 4.5″ woofer, an upsized 35mm voice coil, silk tweeter and the largest magnet (90mm) ever found in a portable speaker, experience how the dB1 doubleBASS amplifies the finer details of a tune and delicately balances it across the spectrum of pitch, tone and beat. Unique in the dB1 doubleBASS is the way they’ve incorporated a pair of 5.2″ passive radiators that are 3x larger than the speaker driver. What you will notice, is the pulsating movements (symmetrical oscillation) of the double passive radiators. The increased internal pressure of the air in within the dB1 doubleBASS’s frame delivers a deep, resounding bass note that will appeal to bass lovers. Driven by internal pressure and airflow within the dB1 Doublebass’s polycarbonate frame, the symmetrical movement of the passive radiators work in unison to minimise microphonic effects that cause audio distortion and unwanted noise. This adds a measure of solidity and stability to the speaker as it plays your favourite songs. Enjoying quality sound doesn’t have to come with restrictions, such as a fixed location, or a power source. The dB1 doubleBASS’s quartet of 2500mAH battery offers up to 20-hours of playback on a full charge, and up to 2 weeks on standby. This makes it perfect for use it in the hall, over dinner, the bedroom, or even while soaking in the shower. Just as the music flows into space, the dB1 doubleBASS can move between spaces along with you. Paired with own UB+ Seek App, the dB1 doubleBASS is as simple to control as it is easy on the eye.