In this review, we will be comparing R11 and VELA FS 409, two Passive Floor-standing speakers from KEF and ELAC. Let's have a brief look at the main features
of KEF R11 and ELAC VELA FS 409 first before getting into our more
detailed comparison.
What size room are the KEF R11 and ELAC VELA FS 409 speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:
In the following sections, we will get into more detail in order to better understand how the KEF R11 and ELAC VELA FS 409 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 R11 and VELA FS 409 are 3-way speakers.
| Driver |
KEF R11 |
ELAC VELA FS 409 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
----inch
|
|
Midrange
|
1 x 5-inch |
1 x 6-inch |
|
Woofer
|
4 x 6.5-inch
|
2 x 7-inch
|
R11 features a 1" aluminum Dome Tweeter , a 5" Midrange and 4 x 6.5" Hybrid Aluminum Woofer with a Crossover frequency at 400Hz and 2900Hz. On the other hand, the VELA FS 409 features a ---" handmade JET 5 folded ribbon Tweeter , a 6" Midrange and 2 x 7" Aluminum/Paper Woofer .
Frequency Response
R11 has a frequency range of 46-28k Hz whereas VELA FS 409 has a frequency range of 28-50k Hz. With a minimum frequency of 28Hz, the VELA FS 409 can go significantly deeper on the low side and provide stronger bass compared to the R11's min frequency of 46Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing 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.
Impedance and Sensitivity
R11 is a 8 ohms speaker compared to the VELA FS 409 which has a nominal impedance of 4 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the VELA FS 409 can provide this impedance level.
These two speakers also have different sensitivity levels. R11 sensitivity is rated at 90 dB and the VELA FS 409's is rated at 89 dB. This 1 dB difference makes the KEF R11 a more sensitive speaker compared to ELAC VELA FS 409, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
R11 can handle a max power of 300 watts RMS from the amp the whereas VELA FS 409 has a max power handling value of 200 watts RMS, 100 watts less than the R11.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Both R11 and VELA FS 409 features dual binding post speaker terminals for bi-amping or bi-wiring.
KEF R11's Binding post terminals allows Bi-amping or bi-wiring
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 R11's and ELAC VELA FS 409's external dimensions. KEF R11 has external dimensions of 1301.0 x 312.0 x 389.0mm ( 51-3/16 x 12-1/4 x 15-5/16inch) whereas ELAC VELA FS 409 has external dimensions of 1331.0 x 278.0 x 345.0mm ( 52-3/8 x 10-15/16 x 13-9/16inch) .
ELAC VELA FS 409 is 34mm narrower and 44mm less deeper than KEF R11 but it is also 30mm taller.
Below you can see the front view size comparison of KEF R11 and ELAC VELA FS 409 in scale.
Comparison image of KEF R11 and ELAC VELA FS 409 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 R11 is approximately 1213.7cm2 / 188.1inch2 and base area of the ELAC VELA FS 409 is approximately 959.1cm2 / 148.7inch2. The R11 requires 27% more surface area than the VELA FS 409 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 KEF R11 weighs 37.70kg / 82.9lbs and the ELAC VELA FS 409 weighs 32.18kg / 70.8lbs. This makes the R11 17% heavier than the VELA FS 409.
Here is a comparison of how R11 and VELA FS 409's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of KEF R11?
Here are the items that are included inside the box of R11:
Floorstanding loudspeakerGrille2 Foam port plugs4 Outrigger feet4 Spikes4 Protective discs4 Screws4 WashersWrenchHex-keyUser ManualWarranty Information
What's in the Box of ELAC VELA FS 409?
Here are the items that come with the VELA FS 409:
Floorstanding loudspeakerBase plate2 Jumper straps (pre-installed)4 Spikes4 Pucks4 Rubber pads4 Machine screws4 WashersHex-keyOperating And Safety Instructions
 Max Input Power |
300 watts
vs
200 watts
|
Handle more power from your amplifier |
 Sensitivity |
90 dB
vs
89 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Number of Woofers |
4
vs
2
|
More woofers |
 Height |
1301mm
vs
1331mm
|
Easier to fit in smaller spaces |
 Price per pair* |
6000USD
vs
7400USD
|
costs less (*prices may change depending on the seller, location and time) |
| Woofer Size |
7 inches
vs
6.5 inches
|
Larger woofer |
| Low Frequency Response |
28 Hz
vs
46 Hz
|
Generates deeper bass |
 High Frequency Response |
50k Hz
vs
28k Hz
|
Generates higher frequency |
 Base Surface Area |
959cm2 (278x345mm)
vs
1213cm2 (312x389mm)
|
Takes less floor space |
| General |
KEF R11 |
ELAC VELA FS 409 |
| Brand |
KEF |
ELAC |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
15-300 watts |
40-200 watts |
| Sensitivity |
90 dB |
89 dB |
| Impedance |
8 ohms |
4 ohms |
| Impedance |
3.2 ohms |
n/a |
| Frequency Response |
46-28k Hz |
28-50k Hz |
Drivers |
|
|
| Woofer Quantity |
4 |
2 |
| Woofer Size |
6.5" |
7" |
| Woofer Composition |
Hybrid Aluminum |
Aluminum/Paper |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
---" |
| Tweeter Type |
Dome |
handmade JET 5 folded ribbon |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5" |
6" |
| Crossover Frequency |
400Hz and 2900Hz |
n/a |
| Firing Direction |
rear |
n/a |
Physical Specs |
|
|
| Height |
1301.0mm (51.2") |
1331.0mm (52.4") |
| Width |
312.0mm (12.3") |
278.0mm (10.9") |
| Depth |
389.0mm (15.3") |
345.0mm (13.6") |
| Weight |
37.70kg (82.9lbs) |
32.18kg (70.8lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Lacquer |
MDF/Aluminum |
| Available Colors |
Black Gloss, White Gloss, Walnut |
Gloss Black |
| Grille |
Yes |
n/a |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
5 Years |
3 Years |
| Labor Warranty |
5 Years |
3 Years |