Definitive D11



Definitive Technology Demand Series D11 High-Performance Bookshelf Speakers – Pair                               

Integrated Bass Radiator
for superior low-end extension


The D11 produces superior low-end extension with an integrated 6” x 10” passive bass radiator. Plus, the addition of a larger spider to the radiator reduces rocking and delivers cleaner, tighter bass response.


Audiophile-Quality Crossovers
for beautifully balanced audio

Demand Series crossovers are built with the latest premium audiophile-quality parts, including polypropylene metal-film capacitors and air-core inductors. These high-end components meticulously manage frequencies for clean and crystalline treble, refined and articulate midrange, and linear, low-distortion bass. This ensures that every detail comes through within a clear, balanced presentation that never sacrifices power.

Linear Response Waveguide™
all natural, totally precise


Our patented Linear Response Waveguide™ extends both on-axis and off-axis frequency dispersion for more natural midrange timbre and precise imaging.


Meticulous Masterful Sound

Flawless Home Theater Audio

True audiophiles are obsessive about all sound, not just their music. Designed with meticulous attention to detail, the D11 also flawlessly reproduces home theater audio.

Artistry to the
eye and ear

Extruded aluminum front baffles capture a clean, modern aesthetic with a bead-blasted finish for a timeless look and feel to fit any décor.


Each speaker is meticulously sanded and painted with five layers of premium gloss paint, then buffed to a near-mirror finish.


  • 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
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    High-Performance Bookshelf Speakers

    Qty Included Pair
    Orientation Vertical
    Height 13″ (33.02 cm)
    Width 7.25″ (18.42 cm)
    Depth 12.5″ (31.75 cm)
    Driver Enclosure Type MDF cabinet with extruded natural bead-blasted aluminum front baffle
    Driver Complement • (1) 6.5″ (16.51 cm) d (Round) Polypropylene BDSS Bass – Mid/Woofer
    • (1) 1″ (2.54 cm) d (Round) Annealed Aluminum Dome and Laterally Offset – Tweeter
    • (1) 6″ (15.24 cm) h x 10″ (25.4 cm) w (Oval) Passive – Bass Radiator
    Total Frequency Response 44 Hz → 24,000 Hz
    Nominal Impedance Compatible with 8 ohm outputs
    Sensitivity (1 watt @ 1 meter) 90 dB
    Lower and Upper -3dB Limits 61 Hz → 22,000 Hz
    Mounting Type 1/4 in – 20 Threaded Insert
    Available Orientations Vertical
    Mounting Location Bottom of Speakers
    Mounting Type
    Available Orientations Vertical
    Audio Inputs
    Speaker Inputs (1) (Set) 5-Way Binding Posts – Gold-Plated
    Recommended Amplifier Power Per Channel 20 watts → 200 watts
    AV Receiver Crossover Settings Small (60 Hz)
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