In this review, we will be comparing LS50 Wireless II and Xeo 20, two Powered Bookshelf speakers from KEF and Dynaudio. 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 II and Dynaudio Xeo 20 first before getting into our more
detailed comparison.
| Key Specs | KEF LS50 Wireless II | Dynaudio Xeo 20 |
|---|
| Design | 2-way | 2-way |
|---|
| Built-in amplifier | 380-watt RMS (760-watt peak) | 260-watt RMS |
|---|
| Uni-Q driver | 12th Generation Uni-Q | — |
|---|
| Tweeter | 1" Hard-Dome | 1.1" Soft-Dome |
|---|
| Woofer | 5.25" | 5.5" Magnesium Silicate Polymer |
|---|
| Frequency response | 45-28k Hz | 40-21k Hz |
|---|
| Max depth / sample rate | Yes / 384 kHz | 24-bit / 96 kHz |
|---|
| Bluetooth | Built-in | Built-in 4.1 |
|---|
| App control | Yes | — |
|---|
| Weight | 10.00kg / 22lbs | — |
|---|
| Dimensions (H x W x D) | 10.9375" x 7.875" x 12.6875"
277.8 x 200.0 x 322.3mm | 12.625" x 7.125" x 10.125"
320.7 x 181.0 x 257.2mm |
|---|
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
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Drivers
Both LS50 Wireless II and Xeo 20 are 2-way speakers.
KEF LS50 Wireless IIDynaudio Xeo 20
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
KEF LS50 Wireless II |
Dynaudio Xeo 20 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1.1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.25-inch
|
1 x 5.5-inch
|
LS50 Wireless II features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Woofer. On the other hand, the Xeo 20 features a 1.1" Coated Silk Soft-Dome Tweeter and 1 x 5.5" Magnesium Silicate Polymer Woofer.
Frequency Response
LS50 Wireless II has a frequency range of 45-28k Hz whereas Xeo 20 has a frequency range of 40-21k Hz. With a minimum frequency of 40Hz, the Xeo 20 can go significantly deeper on the low side and provide stronger bass compared to the LS50 Wireless II's min frequency of 45Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Cabinet Type and Port Position
Both LS50 Wireless II and Xeo 20 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
The size of a speaker can sometimes be 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 II's and Dynaudio Xeo 20's external dimensions. KEF LS50 Wireless II has external dimensions of 277.8 x 200.0 x 322.3mm (10.9375 x 7.875 x 12.6875inch) whereas Dynaudio Xeo 20 has external dimensions of 320.7 x 181.0 x 257.2mm (12.625 x 7.125 x 10.125inch).
Dynaudio Xeo 20 is 19mm narrower and 65.1mm less deeper than KEF LS50 Wireless II but it is also 42.9mm taller.
Below you can see the front view size comparison of KEF LS50 Wireless II and Dynaudio Xeo 20 in scale.
Comparison image of KEF LS50 Wireless II and Dynaudio Xeo 20 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 KEF LS50 Wireless II is approximately 644.6cm2 / 99.9inch2 and base area of the Dynaudio Xeo 20 is approximately 465.5cm2 / 72.2inch2. The LS50 Wireless II requires 38% more surface area than the Xeo 20 which gives it a small disadvantage on placement in tight spaces.
Here is 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 KEF LS50 Wireless II and Dynaudio Xeo 20 on a Media Console
What's in the Box of KEF LS50 Wireless II?
Here are the items that are included inside the box of LS50 Wireless II:
- 2 Wireless powered speakers
- Two 6.5' AC power cords
- 10' Cat-6 interconnect speaker cable
- Remote control
- 2 \"AAA\" batteries
- Quick Start Guide
- Important Safety Information
- Warranty Information
What's in the Box of Dynaudio Xeo 20?
Here are the items that come with the Xeo 20:
- 2 Powered bookshelf speakers
- 2 Grilles
- Two 8-feet AC power cords
- Remote control
- 2 AAA batteries
- Setup Manual