In this review, we will be comparing Demand D7 and S 801, two Passive Bookshelf speakers from Definitive Technology and Jamo.
Let's have a brief look at the main features
of Definitive Demand D7 and Jamo S 801 first before getting into our more
detailed comparison.
Definitive Demand D7 Key Specs
- 2-way Design
- 1" Hard-Dome Tweeter
- 4.5" Polypropylene Woofer
- 67-21k Hz Frequency Response
- 85 dB Sensitivity
- Impedance: 8ohms
- Power Range:20-125watts
- Weight:5.45kg
- Dimensions (H x W x D): 251.0" x 5-9/16" x 9-1/8"( 251.0 x 142.0 x 232.0mm )
Jamo S 801 Key Specs
- 2-way Design
- 1" Soft-Dome Tweeter
- 4" Aluminized Polyfiber Woofer
- 76-26k Hz Frequency Response
- 85 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 60watts
- Weight:2.70kg
- Dimensions (H x W x D): 285.0" x 6.1" x 6.4"( 285.0 x 156.0 x 163.0mm )
What size room are the Definitive Demand D7 and Jamo S 801 speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision
factor. Here we have compared their suitability to various sizes of environments considering their size
and max power parameters:
| Listening Environment* |
Definitive Demand D7 |
Jamo S 801 |
| Near-field |
Poor |
Good |
| Small Room |
Average |
Good |
| Mid-size Room |
Good |
Average |
| Large Room |
Average |
Poor |
| Very Large Room |
Poor |
No way |
(* 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.)
In the following sections, we will get into more detail in order to better understand how the Definitive Demand D7 and Jamo S 801 compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking
through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both Demand D7 and S 801 are 2-way speakers.
| Driver |
Definitive Demand D7 |
Jamo S 801 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 4.5-inch
|
1 x 4-inch
|
Demand D7 features a 1" Hard-Dome Tweeter and 1 x 4.5" Polypropylene Woofer . On the other hand, the S 801 features a 1" Soft-Dome Tweeter and 1 x 4" Aluminized Polyfiber Woofer .
Frequency Response
Demand D7 has a frequency range of 67-21k Hz whereas S 801 has a frequency range of 76-26k Hz. With a minimum frequency of 67Hz, the Demand D7 can go significantly deeper on the low side and provide stronger bass compared to the S 801's min frequency of 76Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Demand D7 and S 801 have the same Impedance of 8 ohms and their sensitivity is also same at 85 dB.
Sensitivity
Bookshelf Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using
an amplifier within this range ensures the nominal performance , inputting a power that is higher than the
max wattage can result in a damaged speaker.
Demand D7 can handle a max power of 125 watts RMS from the amp the whereas S 801 has a max power handling value of 60 watts RMS, 65 watts less than the Demand D7.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Demand D7 features Post type posts and S 801 has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
Definitive Demand D7's 5-Way post terminals
Jamo S 801's Post terminals
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Definitive Demand D7's and Jamo S 801's external dimensions. Definitive Demand D7 has external dimensions of 251.0 x 142.0 x 232.0mm ( 9-7/8 x 5-9/16 x 9-1/8inch) whereas Jamo S 801 has external dimensions of 285.0 x 156.0 x 163.0mm ( 11.2 x 6.1 x 6.4inch) .
Definitive Demand D7 is 14mm narrower and 34mm shorter than Jamo S 801 but it is also 69mm deeper.
Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base surface area of the Definitive Demand D7 is approximately 329.4cm2 / 51.1inch2 and base area of the Jamo S 801 is approximately 254.3cm2 / 39.4inch2. The Demand D7 requires 30% more surface area than the S 801 which gives it a small disadvantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Definitive Demand D7 weighs 5.45kg / 12lbs and the Jamo S 801 weighs 2.70kg / 5.9lbs. This makes the Demand D7 102% heavier than the S 801.
Here is a comparison of how Demand D7 and S 801's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Definitive Demand D7?
Here are the items that are included inside the box of Demand D7:
Left bookshelf loudpseakerRight bookshelf loudspeaker2 GrillesCleaning clothOwners Manual
What's in the Box of Jamo S 801?
Here are the items that come with the S 801:
2 Bookshelf loudspeakers 2 Grilles User Manual Important Safety Instructions Warranty Information
 Max Input Power |
125 watts
vs
60 watts
|
Handle more power from your amplifier |
 Woofer Size |
4.5 inches
vs
4 inches
|
Larger woofer |
|
Low Frequency Response |
67 Hz
vs
76 Hz
|
Generates deeper bass |
 Height |
251mm
vs
285mm
|
Easier to fit in smaller spaces |
 High Frequency Response |
26k Hz
vs
21k Hz
|
Generates higher frequency |
 Base Surface Area |
254cm2
vs
329cm2
|
Takes less floor space |
 Price per pair* |
174USD
vs
499USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Definitive Technology Demand Series D7 |
Jamo S 801 |
| Brand |
Definitive Technology |
Jamo |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
20-125 watts |
up to 60 watts |
| Sensitivity |
85 dB |
85 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
67-21k Hz |
76-26k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
4.5" |
4" |
| Woofer Composition |
Polypropylene |
Aluminized Polyfiber |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Hard-Dome |
Soft-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
251.0mm (9.9") |
285.0mm (11.2") |
| Width |
142.0mm (5.6") |
156.0mm (6.1") |
| Depth |
232.0mm (9.1") |
163.0mm (6.4") |
| Weight |
5.45kg (12lbs) |
2.70kg (5.9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Aluminum |
MDF/Vinyl |
| Available Colors |
Gloss White,Piano Black |
Walnut, Black, White |
| Mounting Bracket |
No |
No |
| Recommended Stand Height |
28-30" |
28-31" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |