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Definitive Technology D11 Bookshelf Loudspeakers DEFINITIVE TECHNOLGY Demand D11 Bookshelf Speakers have original box/manual • 1" Aluminium Dome Tweeter with 20/20 Wave Alignment Lens™ • 6.5" Polypropylene BDSS™ Midrange/Woofer • Laterally Offset Tweeter Assembly • MDF cabinet with extruded natural bead-blasted aluminum front baffle • Integrated 6" x 10" (oval) passive bass radiator in each speaker produces superior low-end extension Total Frequency Response: 48 Hz → 24,000 Hz Nominal Impedance: 8 ohms Sensitivity (1 watt @ 1 meter): 90 dB Lower and Upper -3dB Limits: 61 Hz →
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Definitive Technology emerged in 1990 from Owings Mills, Maryland, founded by Sandy Gross—a former Polk Audio founder—alongside Don Givogue and Ed Blaise. The company was born during the digital audio revolution of the early 1990s, driven by a collective passion for cinematic sound quality and home theater excellence. Today, Definitive Technology operates as a division of Sound United under DEI Holdings, maintaining headquarters in Vista, California, where it continues its legacy of audio innovation.
The brand specializes in home theater audio systems, loudspeakers, soundbars, and headphones, positioning itself as a comprehensive solution for both dedicated audiophiles and mainstream consumers seeking quality home entertainment. Their product portfolio emphasizes integrated audio design that balances sonic performance with aesthetic integration into living spaces. The company has built its reputation on engineering sophistication and meticulous attention to sound quality across its range.
Definitive Technology occupies the premium segment of the consumer audio market, recognized among the world's leading speaker manufacturers. The brand commands respect for decades of award-winning product development and consistent delivery of high-fidelity audio systems. Rather than pursuing niche boutique positioning, Definitive Technology targets discerning listeners who demand professional-grade sound quality without sacrificing design elegance—a middle-to-premium positioning that appeals to both serious home theater enthusiasts and quality-conscious consumers seeking reliable, well-engineered audio solutions.
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