Definitive Technology Demand Series D7 is a 2-way Passive Bass Reflex Bookshelf speaker by Definitive Technology. It was released in 2018. It features a 1" Hard-Dome Tweeter and 1 x 4.5" Polypropylene Woofer. The speaker has a frequency range of 67-21k Hz and a sensitivity of 85 dB. Definitive Demand D7 has an MSRP of 499$ per pair but can often be found around 399$ per pair.
Room Size Suitability
The size of the room where you plan to use the Definitive Demand D7 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
Definitive Technology's Demand Series of Loudspeakers
Demand D7 is a member of Definitive Technology's Demand series of Passive speakers. The Demand range is Definitive Technology's premium bookshelf line, with an offset tweeter for a wider soundstage. Below you can see the main specs of these speakers.
See all 6 Definitive Technology Demand models compared »
Definitive Technology Demand Series Speakers
Frequency Response of the Definitive Demand D7 Speaker
Definitive Demand D7 has a Frequency response range of 67-21k Hz and Power Range of 20-125 watts. With a minimum frequency of 67 Hz, it is hard to expect a strong bass response from Demand D7 so depending on your use case, using a subwoofer will significantly help to widen the response range.
Here we have a comparison of how Demand D7's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Bookshelf Speakers
Thinking about a subwoofer for the Definitive Demand D7?
Impedance and Sensitivity
Definitive Demand D7's nominal impedance level is
8 ohms and has a sensitivity of
85 dB.
Sensitivity
Bookshelf Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Definitive Technology Demand Series D7 is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 85 dB, Definitive Technology Demand Series D7 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps. Work out how loud the Definitive Demand D7 plays in your room →
What amplifier does the Definitive Demand D7 need?
At normal listening levels in a medium room, about
24–125 W
per channel into 8 ohms.
Set your own conditions and we will rank every amplifier we cover.
Prefer to browse? Integrated amplifiers under $500, or every amplifier we cover.
Input Type
Demand D7 features 5-Way post type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
Definitive Demand D7 Back View
Definitive Demand D7 External Dimensions and Weight
Definitive Demand D7 has external dimensions of (Height x Width x Depth) 9-7/8 x 5-9/16 x 9-1/8inch (251.0 x 142.0 x 232.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of Definitive Demand D7 is approximately 329.4cm2 / 51.1inch2.
Find speakers that fit your shelf or alcove → · Work out where they should sit in the room →
WeightThe Definitive Demand D7 weighs 5.45kg / 12lbs per piece. Here is a comparison of how Demand D7's weight compares with the average, max and min weights in its class.
Weight
All Bookshelf Speakers
Weight
Bookshelf Speakers under $500
How does the Definitive Demand D7 compare to the Definitive Technology Demand Series D9?
One of the natural alternative to the Definitive Demand D7 is the Demand D9 which is located one step higher in Definitive Technology's Passive Bookshelf selection.
Check the Detailed Comparison of Definitive Demand D7 vs Demand D9 for more details.
Cabinet type and Materials
Definitive Demand D7 has a
Bass Reflex type cabinet and a MDF/Aluminum finish. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
Available colors
Definitive Demand D7 is available in Gloss White and Piano Black.
Wall Mounting
Demand D7 doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.
Does the Definitive Demand D7 come with a Grille?
Demand D7 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
What's in the Box of Definitive Demand D7?
Here are the items that are included inside the box of Demand D7:
- Left bookshelf loudpseaker
- Right bookshelf loudspeaker
- 2 Grilles
- Cleaning cloth
- Owners Manual
Recommended Accessories
Here is a list of accessories that we think you may need for the Definitive Technology Demand Series D7.
- Speaker Cable and Connectors
- Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
- Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
- Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.