In this review, we will be comparing Borea BR03 BT and LS50 Wireless 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 BR03 BT and KEF LS50 Wireless II first before getting into our more
detailed comparison.
Triangle Borea BR03 BT Key Specs
- 2-way Design
- 100-watt RMS Integrated Amplifier
- 1" Dome Tweeter
- 5" fiberglass Woofer
- 56-22kHz Frequency Response
- 89dB Sensitivity
- Impedance: 8ohms
- 24-bit Max Depth / 48 kHz Max Sample Rate
- Built-in 5.0 Bluetooth
- Weight:11.20kg
- Dimensions (H x W x D): 310.0" x 6.92" x 10.8"( 176 x 310 x 274 mm )
KEF LS50 Wireless II Key Specs
- 2-way Design
- 380-watt RMS( 760-watt Peak) Integrated Amplifier
- 12th Generation Uni-Q Driver
- 1" Hard-Dome Tweeter
- 5.25" Aluminum Woofer
- 45-28k Hz Frequency Response
- 32-bit Max Depth / 384 kHz Max Sample Rate
- Built-in 4.2 Bluetooth
- App Control Feature
- Weight:10.00kg
- Dimensions (H x W x D): 277.8" x 7.875" x 12.6875"( 277.8 x 200.0 x 322.3mm )
In the following sections, we will get into more detail in order to better understand how the Triangle Borea BR03 BT and KEF LS50 Wireless 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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Drivers
Both Borea BR03 BT and LS50 Wireless II are 2-way speakers.
| Driver |
Triangle Borea BR03 BT |
KEF LS50 Wireless II |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5-inch
|
1 x 5.25-inch
|
Borea BR03 BT features a 1" EFS fabric Dome Tweeter and 1 x 5" fiberglass Woofer . On the other hand, the LS50 Wireless II features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Aluminum Woofer .
Frequency Response
Borea BR03 BT has a frequency range of 56-22kHz whereas LS50 Wireless II has a frequency range of 45-28k Hz. With a minimum frequency of 45Hz, the LS50 Wireless II can go significantly deeper on the low side and provide stronger bass compared to the Borea BR03 BT's min frequency of 56Hz.
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 BR03 BT and LS50 Wireless 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.
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 BR03 BT's and KEF LS50 Wireless II's external dimensions. Triangle Borea BR03 BT has external dimensions of 176 x 310 x 274 mm ( 6.92 x 12.2 x 10.8 inches) whereas KEF LS50 Wireless II has external dimensions of 277.8 x 200.0 x 322.3mm ( 10.9375 x 7.875 x 12.6875inch) .
Triangle Borea BR03 BT is 24mm narrower and 48.3mm less deeper than KEF LS50 Wireless II but it is also 32.2mm taller.
Below you can see the front view size comparison of Triangle Borea BR03 BT and KEF LS50 Wireless II in scale.
Comparison image of Triangle Borea BR03 BT and KEF LS50 Wireless 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 BR03 BT is approximately 482.0cm2 / 74.7inch2 and base area of the KEF LS50 Wireless II is approximately 644.6cm2 / 99.9inch2. The Borea BR03 BT requires 25% less surface area than the LS50 Wireless II which gives it a small advantage 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 BR03 BT and KEF LS50 Wireless 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 BR03 BT weighs 11.20kg / 24.6lbs and the KEF LS50 Wireless II weighs 10.00kg / 22lbs. This makes the Borea BR03 BT 12% heavier than the LS50 Wireless II.
Here is a comparison of how Borea BR03 BT and LS50 Wireless 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 BR03 BT?
Here are the items that are included inside the box of Borea BR03 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 LS50 Wireless II?
Here are the items that come with the LS50 Wireless 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
 Base Surface Area |
482cm2
vs
644cm2
|
Takes less floor space |
 Price per pair* |
599USD
vs
2499USD
|
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 |
 Woofer Size |
5.25 inches
vs
5 inches
|
Larger woofer |
|
Low Frequency Response |
45 Hz
vs
56 Hz
|
Generates deeper bass |
 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 |
277mm
vs
310mm
|
Easier to fit in smaller spaces |
 Ethernet Connection |
Yes
vs
No
|
High quality streaming over Ethernet |
 USB Port |
Service only
vs
No
|
USB port adds flexibility |
 HDMI Input |
eARC
vs
No
|
Connect HDMI sources directly |
| General |
Triangle Borea Active BR03 BT |
KEF LS50 Wireless II |
| Brand |
Triangle |
KEF |
| Speaker Type |
Powered Stereo Speakers |
Powered Stereo Speakers |
| Sensitivity |
89dB |
n/a |
| Impedance |
8 ohms |
n/a |
| Impedance |
3.6 ohms |
n/a |
| Frequency Response |
56-22kHz |
45-28k Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
100-watt RMS |
380-watt RMS |
| Watts Peak (Max) |
n/a |
760-watt RMS |
| Max Bit Depth |
24-bit |
32-bit |
| Max Sample Rate |
48 kHz |
384 kHz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5" |
5.25" |
| Woofer Composition |
fiberglass |
Aluminum |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Dome |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
310.0mm (12.2") |
277.8mm (10.9") |
| Width |
176.0mm (6.9") |
200.0mm (7.9") |
| Depth |
274.0mm (10.8") |
322.3mm (12.7") |
| Weight |
11.20kg (24.6lbs) |
10.00kg (22lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Available Colors |
Light Oak Blue,Oak Green,Cream,Light Oak,Black |
n/a |
| Mounting Bracket |
No |
No |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Aux Inputs |
3.5mm, RCA |
3.5mm |
| USB Port |
No |
Service only |
| Phone Input |
Yes |
No |
| Subwoofer Output |
mono-RCA |
Wired |
| Digital Input |
Optical,Coaxial |
Optical, Coax |
| HDMI Input |
No |
eARC |
| Headphone Jack |
No |
No |
| Ethernet Port |
No |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
1 Year |
| Labor Warranty |
5 Years |
1 Year |