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The laterally offset tweeter in the D17 speakers is designed to minimize wave cancellations off the front baffle. This delivers a more precise center stereo image and ensures clear, high-frequency performance and a detailed soundstage.
The Balanced Double Surround System (BDSS) in the D17 speakers is a patented technology that provides greater excursion and output. This results in superior midrange detail and punchier bass compared to other drivers of similar size.
The D5c center channel speaker enhances the audio performance of your home theater setup. It provides a central audio source that aids in creating a more immersive and balanced sound experience.
The Demand Series crossovers are built with premium audiophile-quality parts, including polypropylene metal-film capacitors and air-core inductors. These components meticulously manage frequencies to deliver clear treble, refined midrange, and low-distortion bass.
The D17 speakers feature a sleek gloss white finish and modern aesthetic with extruded aluminum front baffles. This design is versatile and stylish, making it a fitting addition to any modern home decor.
Review Summary
2023-08-03T18:29:59
Out of the box was not impressed by the speakers(3.0 setup with Denon 3800), but after hooking them up with an external amp they sound amazing. Impressive cabinets, They are my first Def tech, and defenetly not the last.
Paulo G.
2023-07-12T11:57:11
I had been considering a pair of Definitive Technology D11 bookshelf speakers for quite some time when I saw this D17 3.0 system for sale at an incredible price here on Adorama, which could not be beaten. I honestly didn't believe the price but called and the staff member from Adorama, Louis, was extremely knowledgeable and helpful and assured me of the reputation of Adorama, assuaging all hesitation I had in making this purchase. All in for this 3.0 system was $1,499 + tax, vs MSRP above $5K. That's one heck of a deal. I recently caught the HiFi/Audiophile bug and these are my first big step-up speaker purchase. I have these in my condo/apartment and these are perfect for my small-to-medium-sized living room but I can imagine them filling a much larger space with ease and with the right amplifier. I have these paired with an inexpensive but reasonably powerful Onkyo TX-SR393 using CESS-106-6f bi-wire cables purchased from another vendor. The speakers are still in their break-in period but I already notice detail, texture, and a separation of voices and instruments that was absent in my prior pol system. For the money, these speakers are a no-brainer, and I plan on keeping these for many years to come. The mid-low range is a bit weak until the volume is pushed up, but I'm assuming this is the result of the low-end amplifier I am using, and I plan on adding a dedicated subwoofer in the near future, such as the Definitive Technology DN10 or a REL T/7x. I don't have the center channel hooked up, but from reading other reviews, doing so helps fill in the mid-range frequencies, and enables a superior theatre and tv experience. My motivation in purchasing these, aside from the price, was for listening to music of all genres. These speakers are superlative for that task and from my limited research, these speakers clearly offer the best value for money at the moment.
Christopher K.
2023-06-27T05:47:21
Nice build quality and looks. Tight bass, but in my opinon seemsed to be lacking something in the mid to high frequencies. Also the woofers bottomed out on me once when speakers were set to large in home theater. Went back to the Klipsh's and they had a much more open sound stage for both music and movies. Maybe due to the horn loaded tweeters. I was hoping for better sound based on the reviews of this being audiophile quality, but sadly after auditioning them for a month, I went back to the Klipsh's and noticably improvement in sound.
DAVE M.
2023-06-19T19:43:03
Great looks ang good mid and highs. You can use them till 40hz but would recommend a subwoofer for low frequencies I saw boost in bass with biamping.
ABHILASH G.
2023-05-16T11:51:38
Sound is amazing which is the most important and also looks great- I am extremely impressed.
MIGUEL O.
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Gloss White
Vertical
MDF cabinet with extruded natural bead-blasted aluminum front baffle
1x 1" (2.54cm) d (Round) Annealed Aluminum Dome and Laterally Offset - Tweeter
1x 6.5" (16.51cm) d (Round) Polypropylene BDSS Bass - Midrange
2x 6.5" (16.51cm) d (Round) Carbon fiber Woofer - Mid/Woofer
2x 10" (25.4cm) d (Round) Side-firing, passive - Bass Radiator
38 Hz-24,000 Hz
8 ohms
87 dB
42 Hz-22,000 Hz
1x (Set) 5-Way Binding Posts - Gold-Plated
40 watts-300 watts
43.25 x 10.17 x 14.72" (109.86 x 25.83 x 37.39cm)
64 lbs (29.03kg)
192223227385
Great set of speakers.
By Paulo G.
Out of the box was not impressed by the speakers(3.0 setup with Denon 3800), but after hooking them up with an external amp they sound amazing. Impressive cabinets, They are my first Def tech, and defenetly not the last.
Best Audiophile Value-for-Money, Superlative Performance, Great High Frequency Detail & Vocal Clarity, Perfect Formfactor
By Christopher K.
I had been considering a pair of Definitive Technology D11 bookshelf speakers for quite some time when I saw this D17 3.0 system for sale at an incredible price here on Adorama, which could not be beaten. I honestly didn't believe the price but called and the staff member from Adorama, Louis, was extremely knowledgeable and helpful and assured me of the reputation of Adorama, assuaging all hesitation I had in making this purchase. All in for this 3.0 system was $1,499 + tax, vs MSRP above ...
View full Review
Definitive Technology Demand D17 high-performance tower speakers deliver full-range room-filling sound and precise imaging in modern elegant styling. Ideal for larger rooms the Demand D17 leverages exclusive technologies of the Demand Series such as a 1" annealed aluminum dome tweeter BDSS™ midrange/woofer sections new carbon fiber woofers and dual side-firing passive radiators.

The Demand D17 is fully equipped to deliver smoother high-frequency reproduction and three-dimensional imaging from the most technically advanced and beautifully designed premium tower speaker. Demand more from your Hi-Fi and home theater experience.

3-Way Configuration with Dual 10" Passive Radiators The Demand D17 floor standing speakers feature an exclusive 3-way driver configuration with a 1" annealed aluminum dome tweeter a 6 Definitive Technology Demand Series D17 High-Performance Floorstanding Speakers with Dual 10" Passive Bass Radiators - Pair (Black)

Enhance your home theater experience with the Demand 3.0 Home Theater System Bundle, featuring D17 Floorstanding Right and Left Speakers and a D5c Center Channel Speaker. This high-quality audio equipment from Definitive Technology is designed for the discerning listener who values smooth high-frequency reproduction, thundering lows, and three-dimensional imaging that fills your space with beautiful sound.
The D17 Tower Speakers are meticulously engineered for breathtaking musicality. They feature a laterally offset 1" annealed aluminum dome tweeter, a 6.5" BDSS midrange woofer, and dual 6.5" carbon fiber bass woofers complemented by dual 10" side-firing passive radiators. This combination ensures a full-range, breathtakingly musical sonic performance that will elevate your audio experience.
The proprietary drivers in the Demand Series are designed to deliver a perfectly balanced, precise, and musical sound. The D17's tweeters are offset by 5 degrees to minimize wave cancellations off the front baffle, delivering a more precise center stereo image and ensuring clear, high-frequency performance and a detailed soundstage.
The D17's 6.5" 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 custom-woven 6.5" carbon fiber woofer produces superior cone rigidity for deep, evenly extended bass notes while preventing distortion-causing cone deformation.
The 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.
The D17 Tower Speaker doesn't just excel in music reproduction, it also flawlessly reproduces home theater audio, making it a versatile addition to any home entertainment setup. The sleek gloss white finish and modern aesthetic of the extruded aluminum front baffles make this system not just a treat for the ears, but also a stylish addition to any home decor.