In this review, we will be comparing Heresy IV and Borea BR09, two Passive Floor-standing speakers from Klipsch and Triangle. Let's have a brief look at the main features
of Klipsch Heresy IV and Triangle Borea BR09 first before getting into our more
detailed comparison.
In the following sections, we will get into more detail in order to better understand how the Klipsch Heresy IV 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 Heresy IV and Borea BR09 are 3-way speakers.
| Driver |
Klipsch Heresy IV |
Triangle Borea BR09 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 1.75-inch |
1 x 6-inch |
|
Woofer
|
1 x 12-inch
|
3 x 6-inch
|
Heresy IV features a 1" titanium-diaphragm compression horn-loaded Tweeter , a 1.75" Midrange and 1 x 12" Fiber-composite 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
Heresy IV has a frequency range of 48-20k 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 Heresy IV's min frequency of 48Hz.
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
Heresy IV and Borea BR09 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Heresy IV sensitivity is rated at 99 dB and the Borea BR09's is at 92.5 dB. This 6 dB difference makes the Klipsch Heresy IV a more sensitive speaker compared to Triangle Borea BR09, 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.
Heresy IV can handle a max power of 170 watts RMS from the amp the whereas Heresy IV has a max power handling value of 100 watts RMS , 70 watts less than the Borea BR09.
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
Heresy IV 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.
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 Klipsch Heresy IV's and Triangle Borea BR09's external dimensions. Klipsch Heresy IV has external dimensions of 631.0 x 394.0 x 337.0mm ( 24-13/16 x 15-1/2 x 13-1/4inch) 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 188mm narrower and 23mm less deeper than Klipsch Heresy IV but it is also 464mm taller.
Below you can see the front view size comparison of Klipsch Heresy IV and Triangle Borea BR09 in scale.
Comparison image of Klipsch Heresy IV and Triangle Borea BR09 Size and External Dimensions
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 Klipsch Heresy IV is approximately 1327.8cm2 / 205.8inch2 and base area of the Triangle Borea BR09 is approximately 646.8cm2 / 100.3inch2. The Heresy IV requires 105% more surface area than the Borea BR09 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 Klipsch Heresy IV weighs 20.45kg / 45lbs and the Triangle Borea BR09 weighs 21.80kg / 48lbs. This makes the Borea BR09 7% heavier than the Heresy IV.
Here is a comparison of how Heresy IV and Borea BR09's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of Klipsch Heresy IV?
Here are the items that are included inside the box of Heresy IV:
2 Floor-standing loudspeakers2 Detachable grilles (installed)2 Base risers (installed)8 Self-adhesive rubber feet4 Jumper-straps (installed)Owners ManualCongratulations letterKlipsch brochure
What's in the Box of Triangle Borea BR09?
Here are the items that come with the Borea BR09:
2 x Borea speakers 2 x protections grids 2 x pedestals 8 x screws 8 x adhesive rubber plots 8 x decoupling spikes 1 x user manual
 Sensitivity |
99 dB
vs
93 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
12 inches
vs
6 inches
|
Larger woofer |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Height |
631mm
vs
1095mm
|
Easier to fit in smaller spaces |
 Max Input Power |
170 watts
vs
100 watts
|
Handle more power from your amplifier |
| Number of Woofers |
3
vs
1
|
More woofers |
| Low Frequency Response |
35 Hz
vs
48 Hz
|
Generates deeper bass |
 High Frequency Response |
22k Hz
vs
20k Hz
|
Generates higher frequency |
 Base Surface Area |
646cm2 (206x314mm)
vs
1327cm2 (394x337mm)
|
Takes less floor space |
 Price per pair* |
1850USD
vs
3198USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Klipsch Heritage Heresy IV |
Triangle Borea BR09 |
| Brand |
Klipsch |
Triangle |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 100 watts |
up to 170 watts |
| Sensitivity |
99 dB |
92.5 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
n/a |
3.3 ohms |
| Frequency Response |
48-20k Hz |
35 - 22k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
3 |
| Woofer Size |
12" |
6" |
| Woofer Composition |
Fiber-composite |
fiberglass |
| Woofer Surround Material |
Treated cloth |
n/a |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
horn-loaded |
dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
1.75" |
6" |
| Crossover Frequency |
n/a |
310Hz and 3900Hz |
| Firing Direction |
n/a |
front |
Physical Specs |
|
|
| Height |
631.0mm (24.8") |
1095.0mm (43.1") |
| Width |
394.0mm (15.5") |
206.0mm (8.1") |
| Depth |
337.0mm (13.3") |
314.0mm (12.4") |
| Weight |
20.45kg (45lbs) |
21.80kg (48lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood veneer |
n/a |
| Available Colors |
Black |
Light Oak, Walnut, Black, White |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
No |
Other |
|
|
| Parts Warranty |
10 Years |
5 Years |
| Labor Warranty |
10 Years |
5 Years |