In this review, we will be comparing Debut ConneX DCB41 and LSX II, two Powered Bookshelf speakers from ELAC 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 ELAC Debut DCB41 and KEF LSX 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 ELAC Debut DCB41 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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Drivers
Both Debut ConneX DCB41 and LSX II are 2-way speakers.
| Driver |
ELAC Debut DCB41 |
KEF LSX II |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
0.75-inch
|
0.75-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 4.5-inch
|
1 x 4.5-inch
|
Debut ConneX DCB41 features a 0.75" Fabric Soft-Dome Tweeter and 1 x 4.5" Polypropylene 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
Debut ConneX DCB41 has a frequency range of 66-25k Hz whereas LSX II has a frequency range of 54-28k Hz. With a minimum frequency of 54Hz, the LSX II can go significantly deeper on the low side and provide stronger bass compared to the Debut ConneX DCB41's min frequency of 66Hz.
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.
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 ELAC Debut DCB41's and KEF LSX II's external dimensions. ELAC Debut DCB41 has external dimensions of 249 x 141 x 240mm ( 9.8125inch x 5.5625inch x 9.4375inch ) whereas KEF LSX II has external dimensions of 240 × 155 × 180 mm ( 9.5 × 6.1 × 7.1 inch) .
KEF LSX II is 9mm shorter and 60mm less deeper than ELAC Debut DCB41 but it is also 14mm wider.
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 ELAC Debut DCB41 is approximately 338.4cm2 / 52.5inch2 and base area of the KEF LSX II is approximately 279.0cm2 / 43.2inch2. The Debut ConneX DCB41 requires 21% more surface area than the LSX II which gives it a small disadvantage on placement in tight spaces.
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 ELAC Debut DCB41 weighs 2.90kg / 6.4lbs and the KEF LSX II weighs 3.60kg / 7.9lbs. This makes the LSX II 24% heavier than the Debut ConneX DCB41.
Here is a comparison of how Debut ConneX DCB41 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 ELAC Debut DCB41?
Here are the items that are included inside the box of Debut ConneX DCB41:
Powered speakerPassive speaker2 Grilles6.5-feet AC power cordRemote control2
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
 Price per pair* |
599USD
vs
1299USD
|
costs less (*prices may change depending on the seller, location and time) |
 Low Frequency Response |
54 Hz
vs
66 Hz
|
Generates deeper bass |
 High Frequency Response |
28k Hz
vs
25k Hz
|
Generates higher frequency |
 App-Based Control |
Apple iOS, Android
vs
None
|
Control the speaker via an app |
 Height |
240mm
vs
249mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
279cm2 (155x180mm)
vs
338cm2 (141x240mm)
|
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 |
 3.5mm Connection |
Yes
vs
No
|
Connection via 3.5mm AUX input |
| General |
ELAC Debut ConneX DCB41 |
KEF LSX II |
| Brand |
ELAC |
KEF |
| Speaker Type |
Powered Stereo Speakers |
Powered Stereo Speakers |
| Frequency Response |
66-25k Hz |
54-28k Hz |
Amplifier |
|
|
| Watts RMS (Continuous) |
100-watt RMS |
200-watt RMS |
| Max Bit Depth |
24-bit |
24-bit |
| Max Sample Rate |
96 kHZ |
384 kHz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
4.5" |
4.5" |
| Woofer Composition |
Polypropylene |
Magnesium/Aluminium alloy |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
0.75" |
0.75" |
| Tweeter Type |
Soft-Dome |
Hard-Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
249.0mm (9.8") |
240.0mm (9.4") |
| Width |
141.0mm (5.6") |
155.0mm (6.1") |
| Depth |
240.0mm (9.4") |
180.0mm (7.1") |
| Weight |
2.90kg (6.4lbs) |
3.60kg (7.9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Available Colors |
Black,Walnut,Royal Blue |
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 |
No |
3.5mm |
| USB Port |
USB-B |
USB-C (connects to your computer) |
| Phone Input |
No |
No |
| Subwoofer Output |
mono-RCA |
Wired |
| Digital Input |
Optical, HDMI |
Optical |
| HDMI Input |
ARC |
ARC |
| Headphone Jack |
No |
No |
| Ethernet Port |
No |
Yes |
Other |
|
|
| Parts Warranty |
1 Year |
1 Year |
| Labor Warranty |
1 Year |
1 Year |