In this review, we will be comparing Focus 10 and LS50 Wireless II, two Powered Bookshelf speakers from Dynaudio 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 Dynaudio Focus 10 and KEF LS50 Wireless II first before getting into our more
detailed comparison.
In the following sections, we will get into more detail in order to better understand how the Dynaudio Focus 10 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 Focus 10 and LS50 Wireless II are 2-way speakers.
| Driver |
Dynaudio Focus 10 |
KEF LS50 Wireless II |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1.1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 5.5-inch
|
1 x 5.25-inch
|
Focus 10 features a 1.1" Cerotar Soft-Dome Tweeter and 1 x 5.5" MSP Woofer with a Crossover frequency at 2200 Hz. On the other hand, the LS50 Wireless II features a 1" Aluminum Hard-Dome Tweeter and 1 x 5.25" Aluminum Woofer .
Frequency Response
Focus 10 has a frequency range of 43-22k Hz whereas LS50 Wireless II has a frequency range of 45-28k Hz. With a minimum frequency of 43Hz, the Focus 10 can go slightly deeper then the LS50 Wireless II's min frequency of 45Hz.
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.
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 Dynaudio Focus 10's and KEF LS50 Wireless II's external dimensions. Dynaudio Focus 10 has external dimensions of 315.0 x 180.0 x 261.0mm ( 12-3/8-inch x 7-1/8-inch x 10-1/4-inch) 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) .
Dynaudio Focus 10 is 20mm narrower and 61.3mm less deeper than KEF LS50 Wireless II but it is also 37.2mm taller.
Below you can see the front view size comparison of Dynaudio Focus 10 and KEF LS50 Wireless II in scale.
Comparison image of Dynaudio Focus 10 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 Dynaudio Focus 10 is approximately 469.8cm2 / 72.8inch2 and base area of the KEF LS50 Wireless II is approximately 644.6cm2 / 99.9inch2. The Focus 10 requires 27% 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 Dynaudio Focus 10 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 Dynaudio Focus 10 weighs 7.50kg / 16.5lbs and the KEF LS50 Wireless II weighs 10.00kg / 22lbs. This makes the LS50 Wireless II 33% heavier than the Focus 10.
Here is a comparison of how Focus 10 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 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
 Woofer Size |
5.5 inches
vs
5.25 inches
|
Larger woofer |
| Low Frequency Response |
43 Hz
vs
45 Hz
|
Generates deeper bass |
 Base Surface Area |
469cm2 (180x261mm)
vs
644cm2 (200x322mm)
|
Takes less floor space |
 RCA Connection |
Yes
vs
No
|
Connection via RCA input |
 High Frequency Response |
28k Hz
vs
22k Hz
|
Generates higher frequency |
 Handheld Remote |
Yes
vs
No
|
Control the speaker by the included RC |
 Height |
277mm
vs
315mm
|
Easier to fit in smaller spaces |
 Price per pair* |
2499USD
vs
5500USD
|
costs less (*prices may change depending on the seller, location and time) |
 3.5mm Connection |
Yes
vs
No
|
Connection via 3.5mm AUX input |
 HDMI Input |
eARC
vs
No
|
Connect HDMI sources directly |
| General |
Dynaudio Focus 10 |
KEF LS50 Wireless II |
| Brand |
Dynaudio |
KEF |
| Speaker Type |
Powered Stereo Speakers |
Powered Stereo Speakers |
| Frequency Response |
43-22k Hz |
45-28k Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
390-watt RMS |
380-watt RMS |
| Watts Peak (Max) |
n/a |
760-watt RMS |
| Max Bit Depth |
24-bit |
32-bit |
| Max Sample Rate |
192 kHz |
384 kHz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
5.5" |
5.25" |
| Woofer Composition |
MSP |
Aluminum |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1.1" |
1" |
| Tweeter Type |
Soft-Dome |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
2200 Hz |
n/a |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
315.0mm (12.4") |
277.8mm (10.9") |
| Width |
180.0mm (7.1") |
200.0mm (7.9") |
| Depth |
261.0mm (10.3") |
322.3mm (12.7") |
| Weight |
7.50kg (16.5lbs) |
10.00kg (22lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Available Colors |
Black High Gloss, White High Gloss, Blonde Wood, Walnut Wood |
n/a |
| Mounting Bracket |
No |
No |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Aux Inputs |
2x RCA |
3.5mm |
| USB Port |
Service only |
Service only |
| Phone Input |
No |
No |
| Subwoofer Output |
mono-RCA |
Wired |
| Digital Input |
1x Toslink, 1x RCA |
Optical, Coax |
| HDMI Input |
No |
eARC |
| Headphone Jack |
No |
No |
| Ethernet Port |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
|
1 Year |
| Labor Warranty |
|
1 Year |