This website uses cookies

Learn More
Arrow left Definitive Technology

Definitive Technology Demand Series D9 Gloss Black Bookshelf Speakers (Pair)

Definitive Technology

Product Reference


View Description Free Next Day Delivery Downloads

0% Finance Available

View Available Plans

Twitter logo Facebook logo Google plus logo

Condition: New

Brand-new, unused, unopened and undamaged item in original retail packaging (where applicable).


Limited 2-5 year warranty.  More info

Rated 5/5 based on 1 customer review

Order now for delivery on
Wed 18th September 2019

Hurry, only 1 left in stock.

More Information


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 aluminium 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.

Offset Tweeter

Offset Tweeter

1" Aluminium dome tweeter coupled with 20/20 wave alignment lens, the annealed aluminium dome tweeter delivers smoother high frequency response and improved dispersio. Offsetting the tweeter by 5° delivers a more precise centre stereo image.

BDSS Midrange / Woofer

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.



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

Gloss Cabinet

Gloss 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.

Passive Bass Radiator

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.

Magnetic Grille

Magnetic Grille

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

  • Tick 1" Aluminium dome tweeter w/ 20/20 wave alignment lens & laterally offset tweeter assembly
  • Tick BDSS (balanced double surround system) midrange/woofer
  • Tick Linear response waveguide
  • Tick Integrated passive bass radiator in each speaker produces superior low-end extension
  • Tick Extruded aluminium front baffle

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

Total Frequency Response 44 Hz -24,000 Hz
Nominal Impedance 8 ohms
Sensitivity (1 watt @ 1 metre) 88 dB
Lower and Upper -3dB Limits 64 Hz - 22,000 Hz
Mounting Type 1/4 in - 20 Threaded Insert
Available Orientations Vertical
Mounting Location Bottom of Speakers
Recommended Amplifier Power Per Channel 20 - 150 watts
A/V Receiver Crossover Settings Small (80 Hz)
Height 11.71" (29.74 cm)
Width 6.5" (16.51 cm)
Depth 11.97" (30.4 cm)

While we do our best to keep this information up to date, please be aware that all specifications are subject to change by the manufacturer at any time.

Finance - Pay Monthly

Pay monthly plans for up to 60 months, available on purchases between £299 and £25,000.

0% ONIF6 6 Months
15.9% ONIB12-15.9 12 Months
15.9% ONIB24-15.9 24 Months
15.9% ONIB36-15.9 36 Months
15.9% ONIB48-15.9 48 Months
15.9% ONIB60-15.9 60 Months

Choose your deposit amount

Deposit variable between 10% and 50%, subject to a minimum loan value of £250.


Please note: These finance quotes are for a single purchase of the product listed on this page, at the price shown. Adding additional products or quantities to your order, or using any vouchers or other discounts will result in changes to the quotes and available terms.

For further information please visit the finance page.

All of our reviews are provided by real customers with verified purchases.

Reviews for this product.

21 September 2018

No comment provided by customer.


This item is in stock and ready to dispatch. Limited quantity available.

Please see our stock information page for more details on how we show stock information on this website.


This item is available same day dispatch Monday to Friday, subject to cut-off times and excluding public holidays. Next working day and weekend deliveries available.

Delivery is available to most addresses within the United Kingdom. Some services may not be available to all postcodes. More information is available at the basket and on our delivery page.

We do not dispatch orders to addresses outside of the United Kingdom.

Introducing the Demand Series Bookshelf Speakers

Others Also Bought

Definitive Technology Demand Series ST1 Black Speaker Stands (Pair)

Definitive Technology Demand Series ST1 Black Speaker Stands (Pair)

Was: £319.00 Now: £299.00