Definitive Technology Di 5.5 BPS Bipolar Disappearing™ In-Wall Series in-wall/in- ceiling bipolar surround loudspeake

The ultralight, rigid construction of DI Series aluminum dome tweeters enables them to play significantly higher frequencies than we can hear, enabling optimum linearity within the range of human hearing. The DI 5.5BPS features pivotable tweeters for clean, sparkling, distortion-free highs, with dispersion customizable to your space.

Exclusive BDSS™ midrange/bass woofers

For more bass in less space while keeping midrange detailed and responsive, the DI 5.5BPS’s two 5.25” mid/bass woofers leverage our exclusive Balanced Double Surround System (BDSS™). The double butyl rubber surrounds produce a much greater cone excursion than other comparably sized drivers. And its rigid PolyStone™ basket provides a sturdy launching pad for the powerful excursion. With BDSS drivers, you’ll enjoy superior midrange and midbass dynamics and detail in packages sized for stealth.

Environmental EQ fine-tunes the highs for any space

Adjust the Environmental EQ switch to customize tweeter output for your listening environment. Engage the [+] setting to boost treble in sound-absorbing rooms, or the [–] setting to reduce treble in lively rooms. Leave in the Center position for rooms with average reflectivity.

Acoustic Wizardry for the details that make the difference

The DI 5.5BPS features a sophisticated adjustable crossover network with custom, high-precision components for superior sonic purity. Surrounding each of the two BDSS drivers is a specially-contoured AeroRing™ that precisely distributes natural, well-balanced sound by minimizing diffraction. The Axially-Aligned configuration of each DI 5.5BPS tweeter with its companion woofer provides broader sound dispersion and more natural balance.

Installs Easily and Reliably

Whether new or existing construction, walls or ceilings, residential or commercial, DI Series speakers offer simple, stealthy installations. Our engineers have extensive custom installation experience and have felt your pain when working with hastily-engineered products. From pivoting lock arms to paintable grilles and frames to sure-grip magnetic grille fasteners, DI Series speakers are installer-friendly to the extreme.

Paintable Magnetic Grille for the final custom touch

All DI Series speaker grilles and grille frames are paintable, with easy step-by-step instructions. Once you have your perfect look, powerful neodymium magnets attach the grilles to the speakers for a secure, tool-free finish.