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Definitive Technology D9

Demand Series D9 High-Performance Bookshelf Speakers

Features

  • 1" Aluminum Dome Tweeter with 20/20 Wave Alignment Lens and Laterally Offset Tweeter Assembly
  • Laterally Offset Tweeter Assembly
  • BDSS (Balanced Double Surround System) Midrange/woofer
  • Integrated passive bass radiator in each speaker produces superior low-end extension

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Demand Series D9

Definitive Technology Demand D9 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 midrange/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.

EXTRUDED ALUMINUM FRONT BAFFLE

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

LINEAR RESPONSE WAVEGUIDE™

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.

BDSS™ MIDRANGE/WOOFER

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.

Passive Bass Radiator

Integrated passive bass radiator in each speaker produces superior low-end extension. Plus, the addition of a larger spider reduces rocking and increases linearity for deep, tight, clean bass response.

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.

Painted Gloss Black Cabinet

Each cabinet is hand-crafted to blend seamlessly with your lifestyle-meticulously sanded, painted with five layers of premium black gloss paint, then buffed for a near-mirror finish (Level 6) for an uncompromising look in your home.

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.

Features

  • 1" Aluminum Dome Tweeter with 20/20 Wave Alignment Lens and Laterally Offset Tweeter Assembly
  • Laterally Offset Tweeter Assembly
  • BDSS (Balanced Double Surround System) Midrange/woofer
  • Integrated passive bass radiator in each speaker produces superior low-end extension
Overall
Total Pieces 2
Included Accessories
  • (2) Acoustically transparent magnetic black speaker grilles
Optional Accessories
  • (1) ST1 Demand Series Speaker Stands (Pair) - Sold Separately
Cabinet Warranty 5 years
Drivers Warranty 5 years
Original Purchaser Only Yes
High-Performance Bookshelf Speaker
Qty Included Pair
Orientation Vertical
Height 11.71" (29.74 cm)
Width 6.5" (16.51 cm)
Depth 11.97" (30.4 cm)
Driver Enclosure Type MDF cabinet with extruded natural bead-blasted aluminum front baffle
Driver Complement
  • (1) 5.25" (13.34 cm) d (Round) Polypropylene BDSS Bass - Mid/Woofer
  • (1) 1" (2.54 cm) d (Round) Annealed Aluminum Dome and Laterally Offset - Tweeter
  • (1) 5" (12.7 cm) h x 9" (22.86 cm) w (Oval) Passive - Bass Radiator
Total Frequency Response 44 Hz → 24,000 Hz
Nominal Impedance 8 ohms
Sensitivity (1 watt @ 1 meter) 88 dB
Lower and Upper -3dB Limits 64 Hz → 22,000 Hz
Speaker Inputs (1) (Set) 5-Way Binding Posts - Gold Plated
Mounting Type 1/4 in - 20 Threaded Insert
Available Orientations Vertical
Mounting Location Bottom of Speakers
Available Orientations Vertical
Recommended Amplifier Power Per Channel 20 watts → 150 watts
A/V Receiver Crossover Settings Small (80 Hz)

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.