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Definitive Technology D7

Demand Series D7 High-Performance Bookshelf Speakers


  • 1" Aluminum Dome Tweeter with 20/20 Wave Alignment Lens
  • Laterally Offset Tweeter Assembly
  • BDSS (Balanced Double Surround System) Midrange/woofer
  • Linear Response Waveguide

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Demand Series D7

Definitive Technology Demand D7 high-performance bookshelf speakers deliver full-range, room-filling sound and precise imaging in a modern, elegant styling. Featuring technology advancements to both our aluminum dome tweeter and mid-range/woofer sections, each speaker delivers an unrivaled sweet spot, smoother high-frequency reproduction, and three-dimensional imaging for the most technically-advanced, premium bookshelf listening experience.


Clean, modern industrial design with a bead blasted finish provides a timeless look and feel that fits any décor.


Patented Linear Response Waveguide extends both on and off axis frequency response, while improving dispersion for more natural mid-range timbre and more precise imaging.


Patented Balanced Double Surround System (BDSS) midrange/woofer provides greater excursion and output that results in superior mid-range detail and punchier bass compared to drivers of similar size.

Bass Port

Bass port in each speaker provides superior low-end extension by smoothly transitioning air flow from the speaker into your listening area for deep, extended bass impact while minimizing turbulence and distortion.

Annealed Aluminum Dome Tweeter

Our annealed aluminum tweeters are precision engineered to articulate nuance and detail in the high-frequency bands for a crystal-clear listening experience.

Acoustically Transparent Magnetic Grille

The included acoustically transparent magnetic black speaker grilles provide natural, uncolored sound when placed on the speaker, and remove easily when you want to enjoy looking at them fully uncovered.


  • 1" Aluminum Dome Tweeter with 20/20 Wave Alignment Lens
  • Laterally Offset Tweeter Assembly
  • BDSS (Balanced Double Surround System) Midrange/woofer
  • Linear Response Waveguide
Total Pieces 2
Included Accessories
  • (2) Acoustically transparent black magnetic grilles
Cabinet Warranty 5 years
Drivers Warranty 5 years
Original Purchaser Only Yes
Bookshelf Speaker
Qty Included Pair
Orientation Vertical
Height 9.75" (24.77 cm)
Width 5.5" (13.97 cm)
Depth 8.75" (22.23 cm)
Driver Enclosure Type Bass-ported MDF cabinet with extruded natural bead-blasted aluminum front baffle
Driver Complement
  • (1) 4.5" (11.43 cm) d (Round) Polypropylene BDSS Bass - Mid/Woofer
  • (1) 1" (2.54 cm) d (Round) Annealed Aluminum Dome and Laterally Offset - Tweeter
Total Frequency Response 57 Hz → 24 Hz
Nominal Impedance 8 ohms
Sensitivity (1 watt @ 1 meter) 85 dB
Lower and Upper -3dB Limits 67 Hz → 21 Hz
Speaker Inputs (1) Pair of Binding Posts - Gold-Plated
Available Orientations Vertical
Mounting Type 1/4 in - 20 Threaded Insert
Available Orientations Vertical
Mounting Location Back of Speakers
Recommended Amplifier Power Per Channel 20 watts → 125 watts

Professional delivery and installation is available for every product we sell. We would be happy to coordinate delivery and installation for you.

Extended warranties are usually very inexpensive and can save you thousands in the future. It's simple and inexpensive to purchase extended warranties and one of the smartest ways to protect your investment.

Electronics can be large, heavy and expensive. You probably don't have the special tools or expertise needed to fix them in a crisis. If you can spare a few thousand dollars without batting an eyelash for new electronics should they break tomorrow, don't buy a warranty. But if you're like most of us, protect yourself by purchasing inexpensive extended warranties when you buy a new product and save yourself big money in the long run.