Definitive Technology Demand Series High-Performance 3-Way Tower Speaker With Dual 8 Inch Passive Bass Radiators - D15 Left (W)

Model #:D15 Left (W) , UPC #:747192132002

Definitive Technology Demand Series High-Performance Tower Loudspeaker With Dual 8 Inch Passive Bass Radiators In Black - D15 Left (B)

Model #:D15 Left (B) , UPC #:747192131968

Definitive Technology Demand Series High-Performance 3-Way Tower Speaker With Dual 8 Inch Passive Bass Radiators - D15 Left (W)

Model #:D15 Left (W) , UPC #:747192132002
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D15 Tower Speaker

Spacious Expansive Sound

Demand Series D15 loudspeakers deliver smooth high-frequency reproduction, formidable lows, and room-filling three-dimensional imaging for expansive audio.

Full-Range, Room-Filling Sound

3-Way Configuration and Audiophile-quality Crossovers

High-Frequency Performance

Laterally Offset Tweeters for a Precise Soundstage

Superior Midrange and Punchier Bass

Balanced Double Surround System and 6.5" Mid/Bass Woofers

Room-filling Sonic Performance

Lose Yourself In Sound

The D15 tower speaker features an exclusive 3-way driver configuration with a 1” annealed aluminum dome tweeter, a 5.25” BDSS™ midrange woofer, and dual 5.25” carbon fiber bass drivers, complemented by dual 8” side-firing passive radiators, for a full-range, room-filling sonic performance.

Proprietary Drivers detailed, balanced audio

Definitive Technology designed the drivers in the Demand Series to deliver a perfectly balanced, precise, musical sound.

The D15 couples a laterally offset 1" Aluminum Dome Tweeter with our 20/20 Wave Alignment Lens. We offset the tweeters by 5 degrees, minimizing wave cancellations off the front baffle to deliver a more precise center stereo image and ensure clear, detailed high-frequency performance.

The D15's 5.25" patented Balanced Double Surround System (BDSS) mid/bass driver provides greater excursion and output for superior midrange detail and punchier bass compared with other drivers of similar size.

The D15's 5.25" custom-woven carbon fiber woofers produce superior cone rigidity for deep, evenly extended bass notes while preventing distortion-causing cone deformation that can occur with less rigid materials.

Dual 8" Passive Bass Radiators for visceral bass response

Twin integrated 8” passive bass radiators in each speaker produce superior low-end extension for highly controlled, highly impactful bass.

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™ for natural, precise imaging

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

Masterful Sound

Award Winning Home Cinema

True audiophiles are obsessive about all sound, not just their music. The meticulous attention to detail that enables the D15 Tower Speaker to beautifully reproduce music also enables it to flawlessly reproduce home theater audio.

2020 Product of the Year

"The Demand D15 is a very accurate speaker with a pancake flat response and thus a very balanced and neutral sound. What is really astonishing is its price versus its aesthetics and build quality. There are a lot of loudspeakers that are a lot more expensive than these which do not look as high-end nor sound as high-end."


Artistry to the eye and ear

Extruded aluminum front baffles capture a clean, modern aesthetic with a bead-blasted finish to fit any decor.

Each speaker is meticulously sanded and painted with five layers of premium gloss paint, then buffed to a near-mirror finish for an undeniably fashionable look in your home.

Speaker Inputs(1) (Set) 5Way Binding Posts GoldPlated
Lower and Upper -3dB Limits48 Hz → 22,000 Hz
Total Pieces1
Included Accessories (1) Acoustically transparent magnetic speaker grilles, (4) Carpet Spikes, (4) Hard Floor Glides, (4) Lock Rings, (4) Screws, (1) Cleaning Cloth
Original Purchaser OnlyYes
Cabinet Warranty5 years
Drivers Warranty5 years
Depth12.86" (32.66 cm)
Width9.05" (22.99 cm)
Height40.78" (103.58 cm)
Qty Included1
Weight52 lbs (23.59 kg)
Driver Enclosure TypeMDF cabinet with extruded natural beadblasted aluminum front baffle
Driver Complement (1) 1" (2.54 cm) d (Round) Annealed Aluminum Dome and Laterally Offset Tweeter, (1) 5.25" (13.34 cm) d (Round) Polypropylene BDSS Bass Midrange, (2) 5.25" (13.34 cm) d (Round) Carbonfiber woofer Mid/Woofer, (2) 8" (20.32 cm) d (Round) Passive Bass Radiator
Nominal Impedance8 ohms
Total Frequency Response39 Hz → 24,000 Hz
Sensitivity (1 watt @ 1 meter)85.5 dB
Recommended Amplifier Power Per Channel30 watts → 300 watts

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