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expired Posted by iconian | Staff • Dec 18, 2023
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expired Posted by iconian | Staff • Dec 18, 2023

Definitive Technology Demand Speakers: D17 Floorstanding (Pair)

& More + Free Shipping

$799

$1,900

57% off
Adorama
73 Comments 17,649 Views
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Deal Details
Adorama has select Definitive Technology Demand Speakers on sale as listed below. Shipping is free.

Thanks to Deal Editor iconian for sharing this deal.

Available:About the D17 Floorstanding Speakers:
  • Driver Enclosure Type: MDF cabinet with extruded natural bead-blasted aluminum front baffle
  • Driver Complement:
    • 1x 1" (2.54 cm) d (Round) Annealed Aluminum Dome and Laterally Offset - Tweeter
    • 1x) 6.5" (16.51 cm) d (Round) Polypropylene BDSS Bass - Midrange
    • 2x 6.5" (16.51 cm) d (Round) Carbonfiber Woofer - Mid/Woofer
    • 2x 10" (25.4 cm) d (Round) Side-firing, passive - Bass Radiator
  • Total Frequency Response: 38 Hz → 24,000 Hz
  • Nominal Impedance: 8 ohms
  • Sensitivity (1 watt @ 1 meter): 87 dB
  • Lower and Upper -3dB Limits: 42 Hz → 22,000 Hz
  • Speaker Inputs: (Set) 5-Way Binding Posts - Gold-Plated
  • Recommended Amplifier Power Per Channel: 40 watts → 300 watts

Editor's Notes

  • About this Product:
    • 5 Year Limited Warranty on Cabinet/Drivers
    • 3 Year Limited Warranty on Electronics
  • Additional Notes:
    • Please refer to the Forum Thread for additional discussion regarding this deal.
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.

Original Post

Written by iconian | Staff
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Adorama has select Definitive Technology Demand Speakers on sale as listed below. Shipping is free.

Thanks to Deal Editor iconian for sharing this deal.

Available:About the D17 Floorstanding Speakers:
  • Driver Enclosure Type: MDF cabinet with extruded natural bead-blasted aluminum front baffle
  • Driver Complement:
    • 1x 1" (2.54 cm) d (Round) Annealed Aluminum Dome and Laterally Offset - Tweeter
    • 1x) 6.5" (16.51 cm) d (Round) Polypropylene BDSS Bass - Midrange
    • 2x 6.5" (16.51 cm) d (Round) Carbonfiber Woofer - Mid/Woofer
    • 2x 10" (25.4 cm) d (Round) Side-firing, passive - Bass Radiator
  • Total Frequency Response: 38 Hz → 24,000 Hz
  • Nominal Impedance: 8 ohms
  • Sensitivity (1 watt @ 1 meter): 87 dB
  • Lower and Upper -3dB Limits: 42 Hz → 22,000 Hz
  • Speaker Inputs: (Set) 5-Way Binding Posts - Gold-Plated
  • Recommended Amplifier Power Per Channel: 40 watts → 300 watts

Editor's Notes

  • About this Product:
    • 5 Year Limited Warranty on Cabinet/Drivers
    • 3 Year Limited Warranty on Electronics
  • Additional Notes:
    • Please refer to the Forum Thread for additional discussion regarding this deal.
  • Get 1%-5% cash back on deals like this with a cash back credit card. Compare the available cash back credit cards here.

Original Post

Written by iconian | Staff

Community Voting

Deal Score
+17
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Price Intelligence

Model: Definitive Technology Demand D17 Floorstanding Speaker, Right and Left, Black

Deal History 

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Top Comments

racker15
327 Posts
182 Reputation
hodl for $600!
LovelySparrow901
1702 Posts
154 Reputation
If you're not part of the expired D15 thread, some of us have internal crossover damage. You might wanna pull off the binding post cover (4 Allen screws) and see if anything was broken loose in shipping. Something about Def Tech's packaging and UPS gorillas results in damaged crossovers. I ordered several of the older BP series Def tech speakers years ago and several had damaged crossovers from being dropped.
It looks like an inductor near the back is subject to snapping loose.

72 Comments

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Pro
Dec 18, 2023
209 Posts
Joined Dec 2007
Dec 18, 2023
hcdesign
Pro
Dec 18, 2023
209 Posts
Quote from jlnelson373 :
Sending back my D15s and grabbed these. For $150 per speaker difference, from the previous D15 deal, seems worth it to me for the bigger speaker size. Plus move from the 5.5 to 6.5 midrange drivers. Or maybe I'm just over compensating. 🤣🤣
It depends on how to look at it. D17 is about 1.6 times more expensive than D15 for each speaker($250 vs $400). This is my bedroom system and I'd rather stick with D15. I'm excited to try them out when they arrive later this week. I believe this would be sufficient to use it with my NAD C328.
Pro
Dec 18, 2023
209 Posts
Joined Dec 2007
Dec 18, 2023
hcdesign
Pro
Dec 18, 2023
209 Posts
Quote from Ti9er :
How much wattage is needed for the d15? Thanks
It depends on how loud you enjoy music. I have experience pairing Thiel speakers (Sensitivity of 83dB), with a 30-watt(15w each) class A tube amp. It was more than enough to enjoy my music in a 14x14-sized room for my taste. On Thiel speaker, the 80w((40w each) solid-state amp was producing much better musical presentation in the pop/rock genre.
Last edited by hcdesign December 18, 2023 at 01:18 PM.
Dec 18, 2023
21,476 Posts
Joined Nov 2007
Dec 18, 2023
Buckeyefan 1
Dec 18, 2023
21,476 Posts
Quote from LovelySparrow901 :
Those numbers don't equate with reality.
So they're lying about the measurements? Why would they slap such inefficient numbers in their specs?
1
Dec 18, 2023
7,610 Posts
Joined Apr 2009
Dec 18, 2023
ursus
Dec 18, 2023
7,610 Posts
Received mine. Works fine, feels like an upgrade compared to what I had. They are quite heavy though.
Pro
Dec 18, 2023
209 Posts
Joined Dec 2007
Dec 18, 2023
hcdesign
Pro
Dec 18, 2023
209 Posts
Quote from ursus :
Received mine. Works fine, feels like an upgrade compared to what I had. They are quite heavy though.
What speaker are you comparing to(What do you have)? Just curious.
Dec 18, 2023
39 Posts
Joined Mar 2012
Dec 18, 2023
Pharaohfish
Dec 18, 2023
39 Posts
Copy/paste from the D15 thread --

Would these be a worthy upgrade from the Jamo S809s? Reducing from 3.0 to 2.0 set up (+sub much later) in a large open room with mostly off-axis couch seating (long portion of couch almost in line with left speaker).

WAF so far only on these
Dec 18, 2023
7,610 Posts
Joined Apr 2009
Dec 18, 2023
ursus
Dec 18, 2023
7,610 Posts
Quote from hcdesign :
What speaker are you comparing to(What do you have)? Just curious.
Very cheap, embarrassingly old Harman Kardon front surround speakers that I had for about a decade. The reason I liked them is that I could hide them inside the entertainment center, for optics it was great not the sound quality. The packaging on those D17s was sizeable. It is all relative, but I would not be able to lift both boxes with D17 without injuring myself.

As I am slowly upgrading my speakers set up I moved to SVS SB-2000 Pro sub, Klipsch center speaker and these two front surround speakers. I keep using smaller HK rear surround speakers and the second HK subwoofer. For now I am driving them with a Yamaha AVENTAGE RX-A2080 A/V receiver from 2019. All purchased via SD lol

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Pro
Dec 18, 2023
6,545 Posts
Joined Sep 2014
Dec 18, 2023
MostBased
Pro
Dec 18, 2023
6,545 Posts
Anyone have experience with these vs Klipsch RP line?
Dec 18, 2023
393 Posts
Joined Dec 2007
Dec 18, 2023
burgerbob
Dec 18, 2023
393 Posts
Quote from Buckeyefan 1 :
So they're lying about the measurements? Why would they slap such inefficient numbers in their specs?
Almost all manufacturers embellish their numbers. Erin's Audio Corner on Youtube has a video about it called "BS Speaker Sensitivity Ratings and "Dynamics"". Generally they're 1-5db lower than the manufacturer's claims, with some Klipsch models being even worse.
Dec 18, 2023
365 Posts
Joined Dec 2013
Dec 18, 2023
loboblast
Dec 18, 2023
365 Posts
This has the same size Tweeters and Midrange as the D15 with the only difference being the passive 10" radiator??
Dec 18, 2023
365 Posts
Joined Dec 2013
Dec 18, 2023
loboblast
Dec 18, 2023
365 Posts
Quote from loboblast :
This has the same size Tweeters and Midrange as the D15 with the only difference being the passive 10" radiator??
EDIT I see the mid-range size difference now.
Dec 18, 2023
1,702 Posts
Joined Jun 2023
Dec 18, 2023
LovelySparrow901
Dec 18, 2023
1,702 Posts
Quote from Buckeyefan 1 :
So they're lying about the measurements? Why would they slap such inefficient numbers in their specs?
I didn't say the sensitivity measurements were wrong. I'm saying you can't reliably say you need X amount more power to reach the same volume on this speaker vs its sibling unless you are already maxing out the capability of the amp your using and you actually have a reliable measurement of the amps capabilities versus its "specs".
Speaker A with X sensitivity and speaker B with Y sensitivity could both be powered to the loudness you are comfortable with using the same amp. Or the same could be true but while using totally different amps with different power ratings and in one case you max out your loudness preference while using 50% of the capability of one amp and 70% of the capability of the second amp.
1
Pro
Dec 18, 2023
209 Posts
Joined Dec 2007
Dec 18, 2023
hcdesign
Pro
Dec 18, 2023
209 Posts
Quote from loboblast :
This has the same size Tweeters and Midrange as the D15 with the only difference being the passive 10" radiator??
No. D15 has 5.25" midrange and woofers and D17 come with 6.5"
Dec 18, 2023
133 Posts
Joined Nov 2006
Dec 18, 2023
HiAida
Dec 18, 2023
133 Posts
Decisions decisions. Maybe an AV expert can chime in.

Should I sell my Klipsch nines, add a bit more to my budget, and buy the D17 + D5C + D9 + AV receiver + sub (maybe I'll get the sub later) to get a full 5.1 setup?

My use case is probably 70% music and 30% movies.

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Dec 18, 2023
37 Posts
Joined Mar 2010
Dec 18, 2023
koolice75
Dec 18, 2023
37 Posts
How would you compare this with Klipsch RP-8000F speakers?

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