In this review, we will be comparing Demand D17 and Borea BR09, two Passive Floor-standing speakers from Definitive Technology and Triangle.
Let's have a brief look at the main features
of Definitive Demand D17 and Triangle Borea BR09 first before getting into our more
detailed comparison.
Definitive Demand D17 Key Specs
- 3-way Design
- 1" dome Tweeter
- 6.5" Midrange
- 2 x 6.5" Carbon-fiber Woofer
- 42-22k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 8ohms
- Power Range:40-300watts
- Weight:29.10kg
- Dimensions (H x W x D): 1086.0" x 10-1/4" x 14-3/4"( 1086.0 x 261.0 x 375.0mm )
Triangle Borea BR09 Key Specs
- 3-way Design
- 1" dome Tweeter
- 6" Midrange
- 3 x 6" fiberglass Woofer
- 6" Midrange
- 35 - 22k Hz Frequency Response
- 92.5 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 170watts
- Weight:21.80kg
- Dimensions (H x W x D): 1095.0" x 8.1" x 12.3"( 1095.0 x 206.0 x 314.0mm )
What size room are the Definitive Demand D17 and Triangle Borea BR09 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 D17 |
Triangle Borea BR09 |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Average |
Good |
| Large Room |
Good |
Good |
| Very Large Room |
Average |
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.)
In the following sections, we will get into more detail in order to better understand how the Definitive Demand D17 and Triangle Borea BR09 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 D17 and Borea BR09 are 3-way speakers.
| Driver |
Definitive Demand D17 |
Triangle Borea BR09 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 6.5-inch |
1 x 6-inch |
|
Woofer
|
2 x 6.5-inch
|
3 x 6-inch
|
Demand D17 features a 1" aluminum dome Tweeter , a 6.5" Midrange and 2 x 6.5" Carbon-fiber Woofer . On the other hand, the Borea BR09 features a 1" silk dome Tweeter , a 6" Midrange and 3 x 6" fiberglass Woofer with a Crossover frequency at 310Hz and 3900Hz.
Frequency Response
Demand D17 has a frequency range of 42-22k Hz whereas Borea BR09 has a frequency range of 35 - 22k Hz. With a minimum frequency of 35Hz, the Borea BR09 can go significantly deeper on the low side and provide stronger bass compared to the Demand D17's min frequency of 42Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing 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 D17 and Borea BR09 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Demand D17 sensitivity is rated at 87 dB and the Borea BR09's is at 92.5 dB. This 6 dB difference makes the Triangle Borea BR09 a more sensitive speaker compared to Definitive Demand D17, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing 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 D17 can handle a max power of 300 watts RMS from the amp the whereas Borea BR09 has a max power handling value of 170 watts RMS, 130 watts less than the Demand D17.
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 D17 features 5-Way Post posts which make bi-amping or bi-wiring possible. Borea BR09 has a Binding post which doesn't feature bi-amping/bi-wiring.
Definitive Demand D17's 5-Way Post terminals allows Bi-amping or bi-wiring
Triangle Borea BR09's Binding 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 D17's and Triangle Borea BR09's external dimensions. Definitive Demand D17 has external dimensions of 1086.0 x 261.0 x 375.0mm ( 42-3/4 x 10-1/4 x 14-3/4inch) whereas Triangle Borea BR09 has external dimensions of 1095.0 x 206.0 x 314.0mm ( 43.1 x 8.1 x 12.3inch) .
Triangle Borea BR09 is 55mm narrower and 61mm less deeper than Definitive Demand D17 but it is also 9mm taller.
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 D17 is approximately 978.8cm2 / 151.7inch2 and base area of the Triangle Borea BR09 is approximately 646.8cm2 / 100.3inch2. The Demand D17 requires 51% more surface area than the Borea BR09 which gives it a small disadvantage on placement in tight spaces.