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Klipsch Heresy III vs Triangle Borea BR09 Comparison

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Klipsch Heresy III

Passive Floor-standing | 58-20k Hz

Klipsch Capitol Heresy III
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Triangle Borea BR09

Passive Floor-standing | 35 - 22k Hz

Triangle Borea BR09
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Klipsch Heresy III Klipsch Heresy III
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Triangle Borea BR09 Triangle Borea BR09
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Klipsch Heresy III
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Triangle Borea BR09
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Klipsch Heresy III vs Triangle Borea BR09 Speaker Comparison

In this review, we will be comparing Heresy III 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 III and Triangle Borea BR09 first before getting into our more detailed comparison.

Klipsch Heresy III Key Specs

  • 3-way Design
  • 1" Tractrix horn Tweeter
  • 1.75" Midrange
  • 12" Fiber-composite Woofer
  • 58-20k Hz Frequency Response
  • 99 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:100watts
  • Weight:20.00kg
  • Dimensions (H x W x D): 607.0" x 15-1/2" x 13-7/16"( 607.0 x 394.0 x 342.0mm )

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 )

In the following sections, we will get into more detail in order to better understand how the Klipsch Heresy III 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 III and Borea BR09 are 3-way speakers.

Driver Klipsch Heresy III 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 III features a 1" titanium-diaphragm compression Tractrix horn 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 III has a frequency range of 58-20k 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 III's min frequency of 58Hz.

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

Heresy III
Borea BR09
Min
Average
Max
High Frequency

Floor-standing Speakers

Klipsch Heresy III
Triangle Borea BR09
Min
Average
Max

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 III and Borea BR09 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Heresy III sensitivity is rated at 99 dB and the Borea BR09's is at 92.5 dB. This 6 dB difference makes the Klipsch Heresy III a more sensitive speaker compared to Triangle Borea BR09, hence will play louder with the same amount of watts.

Sensitivity

Floor-standing Speakers

Heresy III
Borea BR09
Min
Average
Max

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 III can handle a max power of 170 watts RMS from the amp the whereas Heresy III 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 III 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 BR09Binding post Terminals
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 III's and Triangle Borea BR09's external dimensions. Klipsch Heresy III has external dimensions of 607.0 x 394.0 x 342.0mm ( 23-7/8 x 15-1/2 x 13-7/16inch) 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 28mm less deeper than Klipsch Heresy III but it is also 488mm taller.

Below you can see the front view size comparison of Klipsch Heresy III and Triangle Borea BR09 in scale.

Klipsch Heresy III vs Triangle Borea BR09 Size Comparison - Front View
Comparison image of Klipsch Heresy III 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 III is approximately 1347.5cm2 / 208.9inch2 and base area of the Triangle Borea BR09 is approximately 646.8cm2 / 100.3inch2. The Heresy III requires 108% 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 III weighs 20.00kg / 44lbs and the Triangle Borea BR09 weighs 21.80kg / 48lbs. This makes the Borea BR09 9% heavier than the Heresy III.

Here is a comparison of how Heresy III and Borea BR09's weights compare with the average, max and min weights in Passive Floor-standing class.

Weight
All Floor-standing Speakers
Klipsch Heresy III
Triangle Borea BR09
Min
Average
Max

What's in the Box of Klipsch Heresy III?

Here are the items that are included inside the box of Heresy III:
  • Floor-standing loudspeaker
  • Detachable grille (installed)
  • Base riser (installed)
  • 4 Self-adhesive rubber feet
  • Owners Manual
  • Congratulations letter
  • Klipsch 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

  • Reasons to choose Klipsch Capitol Heresy III over Triangle Borea BR09
    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 607mm vs 1095mm Easier to fit in smaller spaces

    Reasons to choose Triangle Borea BR09 over Klipsch Capitol Heresy III

    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 58 Hz Generates deeper bass
    High Frequency Response 22k Hz vs 20k Hz Generates higher frequency
    Base Surface Area 646cm2 vs 1347cm2 Takes less floor space
    Price per pair* 1850USD vs 2346USD costs less (*prices may change depending on the seller, location and time)
    Klipsch Heresy III vs Triangle Borea BR09 Specs Table
    Detailed comparison of specifications
    General Klipsch Capitol Heresy III Triangle Borea BR09
    Brand Klipsch Triangle
    Speaker Type Floor-standing speaker Floor-standing speaker
    Power Range 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 58-20k 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 Tractrix horn 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 607.0mm (23.9") 1095.0mm (43.1")
    Width 394.0mm (15.5") 206.0mm (8.1")
    Depth 342.0mm (13.5") 314.0mm (12.4")
    Weight 20.00kg (44lbs) 21.80kg (48lbs)
    Enclosure Acoustic Suspension Bass Reflex
    Finish MDF/Wood veneer n/a
    Available Colors Blonde Cherry Light Oak, Walnut, Black, White
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs Yes No
    Other
    Parts Warranty 5 Years 5 Years
    Labor Warranty 5 Years 5 Years

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