In this review, we will be comparing LS50 Wireless and YU4, two Powered Bookshelf speakers from KEF and Kanto. 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 KEF LS50 Wireless and Kanto YU4 first before getting into our more
detailed comparison.
KEF LS50 Wireless Key Specs
- 2-way Design
- 230-watt RMS Integrated Amplifier
- 11th Generation Uni-Q Driver
- 1" Hard-Dome Tweeter
- 5.25" Magnesium/aluminum alloy Woofer
- 79-28k Hz Frequency Response
- 24-bit Max Depth / 192 kHz Max Sample Rate
- Built-in 4.0 Bluetooth
- App Control Feature
- Weight:10.00kg
- Dimensions (H x W x D): 301.6" x 7.875" x 13.25"( 301.6 x 200.0 x 336.5mm )
Kanto YU4 Key Specs
- 2-way Design
- 70-watt RMS( 140-watt Peak) Integrated Amplifier
- 1" Soft-Dome Tweeter
- 4" Kevlar Woofer
- 60-20k Hz Frequency Response
- 24-bit Max Depth / 96 kHz Max Sample Rate
- Built-in 4.0 Bluetooth
- Weight:2.50kg
- Dimensions (H x W x D): 220.0" x 5.5" x 7.5"( 220.0 x 140.0 x 190.0mm )
In the following sections, we will get into more detail in order to better understand how the KEF LS50 Wireless and Kanto YU4 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 LS50 Wireless and YU4 are 2-way speakers.
| Driver |
KEF LS50 Wireless |
Kanto YU4 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.25-inch
|
1 x 4-inch
|
LS50 Wireless features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Magnesium/aluminum alloy Woofer . On the other hand, the YU4 features a 1" Silk Soft-Dome Tweeter and 1 x 4" Kevlar Woofer .
Frequency Response
LS50 Wireless has a frequency range of 79-28k Hz whereas YU4 has a frequency range of 60-20k Hz. With a minimum frequency of 60Hz, the YU4 can go significantly deeper on the low side and provide stronger bass compared to the LS50 Wireless's min frequency of 79Hz.
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 LS50 Wireless and YU4 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 KEF LS50 Wireless's and Kanto YU4's external dimensions. KEF LS50 Wireless has external dimensions of 301.6 x 200.0 x 336.5mm ( 11.875 x 7.875 x 13.25inch) whereas Kanto YU4 has external dimensions of 220.0 x 140.0 x 190.0mm ( 8.7 x 5.5 x 7.5inch) .
KEF LS50 Wireless is clearly the larger of the two speakers. Its body is 60mm wider, 81.6mm taller and 146.5mm deeper than Kanto YU4.
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 KEF LS50 Wireless is approximately 673.0cm2 / 104.3inch2 and base area of the Kanto YU4 is approximately 266.0cm2 / 41.2inch2. The LS50 Wireless requires 153% more surface area than the YU4 which gives it a small disadvantage on placement in tight spaces.