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Discover Definitive Technology at Acoustic Sound Design. Definitive Technology is an American high-performance speaker brand known for built-in powered subwoofers in tower speakers, custom-installation architectural lines, and reference-grade home theater systems used in some of the most demanding listening rooms in the world.

About Definitive Technology

Founded in 1990, Definitive Technology built its reputation on a simple, ambitious idea: build active powered subwoofers directly into tower speakers, so a stereo pair can deliver full-range performance without a separate sub. Decades later, the brand still stands out for its BP (Bipolar) tower speakers with integrated powered subs, plus a deep custom-install lineup of in-wall and in-ceiling architectural speakers.

Why Buy from Acoustic Sound Design?

Acoustic Sound Design is a trusted home audio retailer with deep relationships across the high-performance speaker industry. We offer free U.S. shipping, careful packaging on fragile premium speakers, and customer support from specialists who know how to integrate Definitive Technology gear into a Denon, Marantz, or Yamaha home theater system.

Looking for a Specific Definitive Technology Model?

If you're shopping for a particular Definitive Technology product and don't see it listed, please reach out we can often source models that aren't displayed here, including BP9000 series towers, ProCinema bundles, and Dymension architectural speakers. In the meantime, browse our full floorstanding speakers and in-ceiling speakers collections for similar high-performance options from Klipsch, Polk Audio, and ELAC.

Shipping, Returns & Customer Service

Every order from Acoustic Sound Design ships free anywhere in the continental United States, with tracking provided as soon as your package leaves our warehouse. We pack carefully fragile speakers and heavy subwoofers travel in factory cartons with extra outer protection and we work with reliable freight partners for larger items. If anything arrives damaged in transit, contact us within 48 hours and we'll handle the carrier claim and replacement on our end so you don't have to. Our customer service team is staffed by real audio specialists, not call-center scripts. If you need help comparing models, planning a system, sorting out HDMI compatibility, calibrating a new receiver, or just understanding which subwoofer fits your room, just reach out we're happy to help before, during, and after the sale.