In this review, we will be comparing Borea BR02 BT and LSX II, two Powered Bookshelf speakers from Triangle and KEF. Being Powered speakers, they both have built-in amplifiers so you don't need an external power amp or an integrated amp to power them.
Let's have a brief look at the main features
of Triangle Borea BR02 BT and KEF LSX II first before getting into our more
detailed comparison.
Triangle Borea BR02 BT Key Specs
- 2-way Design
- 120-watt RMS Integrated Amplifier
- 1" Dome Tweeter
- 6.5" fiberglass Woofer
- 47-22kHz Frequency Response
- 90dB Sensitivity
- Impedance: 8ohms
- 24-bit Max Depth / 48 kHz Max Sample Rate
- Built-in 5.0 Bluetooth
- Weight:14.20kg
- Dimensions (H x W x D): 360.0" x 8.1" x 12.36"( 206 x 360 x 314 mm )
KEF LSX II Key Specs
- 2-way Design
- 200-watt RMS Integrated Amplifier
- 11th Generation Uni-Q Driver
- 0.75" Hard-Dome Tweeter
- 4.5" Magnesium/Aluminium alloy Woofer
- 54-28k Hz Frequency Response
- 24-bit Max Depth / 384 kHz Max Sample Rate
- Built-in 4.2 Bluetooth
- App Control Feature
- Weight:3.60kg
- Dimensions (H x W x D): 240.0" x 6.1" x 7.1"( 240 × 155 × 180 mm )
In the following sections, we will get into more detail in order to better understand how the Triangle Borea BR02 BT and KEF LSX II compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both Borea BR02 BT and LSX II are 2-way speakers.
| Driver |
Triangle Borea BR02 BT |
KEF LSX II |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
0.75-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 4.5-inch
|
Borea BR02 BT features a 1" EFS fabric Dome Tweeter and 1 x 6.5" fiberglass Woofer . On the other hand, the LSX II features a 0.75" Aluminum Hard-Dome Tweeter and 1 x 4.5" Magnesium/Aluminium alloy Woofer .
Frequency Response
Borea BR02 BT has a frequency range of 47-22kHz whereas LSX II has a frequency range of 54-28k Hz. With a minimum frequency of 47Hz, the Borea BR02 BT can go significantly deeper on the low side and provide stronger bass compared to the LSX II's min frequency of 54Hz.
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.
Cabinet Type and Port Position
Both Borea BR02 BT and LSX II have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
KEF LSX II Port
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 Triangle Borea BR02 BT's and KEF LSX II's external dimensions. Triangle Borea BR02 BT has external dimensions of 206 x 360 x 314 mm ( 8.1x 14.1 x 12.36 inches) whereas KEF LSX II has external dimensions of 240 × 155 × 180 mm ( 9.5 × 6.1 × 7.1 inch) .
Triangle Borea BR02 BT is clearly the larger of the two speakers. Its body is 51mm wider, 120mm taller and 134mm deeper than KEF LSX II.
Below you can see the front view size comparison of Triangle Borea BR02 BT and KEF LSX II in scale.
Comparison image of Triangle Borea BR02 BT and KEF LSX II 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 Triangle Borea BR02 BT is approximately 646.0cm2 / 100.1inch2 and base area of the KEF LSX II is approximately 279.0cm2 / 43.2inch2. The Borea BR02 BT requires 132% more surface area than the LSX II which gives it a small disadvantage on placement in tight spaces.
Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:
Size Comparison image of Triangle Borea BR02 BT and KEF LSX II on a Media Console
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 Triangle Borea BR02 BT weighs 14.20kg / 31.2lbs and the KEF LSX II weighs 3.60kg / 7.9lbs. This makes the Borea BR02 BT 294% heavier than the LSX II.
Here is a comparison of how Borea BR02 BT and LSX II's weights compare with the average, max and min weights in Powered Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Triangle Borea BR02 BT?
Here are the items that are included inside the box of Borea BR02 BT:
1 x passive loudspeaker BOREA BT cable to link the loudspeakers 8. 1 x user manual1 x active loudspeaker BOREA BT (indicator light on the front) 2 x protection grills 1 x remote control, incl. 2 AAA batteries 8 x adhesive anti-slip feet to place below the speakers 1 x AC power cord 1 x 3 meters speaker
What's in the Box of KEF LSX II?
Here are the items that come with the LSX II:
2 Wireless powered speakersTwo 6.5-feet AC power cords10-feet Cat-6 interconnect speaker cableRemote control2 AAA batteries Quick Start Guide Important Safety Information Warranty Information Maintenance Guide
 Woofer Size |
6.5 inches
vs
4.5 inches
|
Larger woofer |
|
Low Frequency Response |
47 Hz
vs
54 Hz
|
Generates deeper bass |
 Price per pair* |
499USD
vs
1299USD
|
costs less (*prices may change depending on the seller, location and time) |
 RCA Connection |
Yes
vs
No
|
Connection via RCA input |
 Phono Input |
Yes
vs
No
|
Connect your turntable directly |
 High Frequency Response |
28k Hz
vs
22k Hz
|
Generates higher frequency |
 App-Based Control |
Apple iOS, Android
vs
None
|
Control the speaker via an app |
 Height |
240mm
vs
360mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
279cm2
vs
646cm2
|
Takes less floor space |
 Ethernet Connection |
Yes
vs
No
|
High quality streaming over Ethernet |
 USB Port |
USB-C (connects to your computer)
vs
No
|
USB port adds flexibility |
 HDMI Input |
ARC
vs
No
|
Connect HDMI sources directly |
| General |
Triangle Borea Active BR02 BT |
KEF LSX II |
| Brand |
Triangle |
KEF |
| Speaker Type |
Powered Stereo Speakers |
Powered Stereo Speakers |
| Sensitivity |
90dB |
n/a |
| Impedance |
8 ohms |
n/a |
| Impedance |
4.2 ohms |
n/a |
| Frequency Response |
47-22kHz |
54-28k Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
120-watt RMS |
200-watt RMS |
| Max Bit Depth |
24-bit |
24-bit |
| Max Sample Rate |
48 kHz |
384 kHz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
6.5" |
4.5" |
| Woofer Composition |
fiberglass |
Magnesium/Aluminium alloy |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1" |
0.75" |
| Tweeter Type |
Dome |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
360.0mm (14.2") |
240.0mm (9.4") |
| Width |
206.0mm (8.1") |
155.0mm (6.1") |
| Depth |
314.0mm (12.4") |
180.0mm (7.1") |
| Weight |
14.20kg (31.2lbs) |
3.60kg (7.9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Available Colors |
Light Oak Blue,Oak Green,Cream,Light Oak,Black |
Carbon Black, Mineral White, Cobalt Blue, Lava Red, and Soundwave |
| Mounting Bracket |
No |
No |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Aux Inputs |
3.5mm, RCA |
3.5mm |
| USB Port |
No |
USB-C (connects to your computer) |
| Phone Input |
Yes |
No |
| Subwoofer Output |
mono-RCA |
Wired |
| Digital Input |
Optical,Coaxial |
Optical |
| HDMI Input |
No |
ARC |
| Headphone Jack |
No |
No |
| Ethernet Port |
No |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
1 Year |
| Labor Warranty |
5 Years |
1 Year |