In this review, we will be comparing La Scala AL5 and R11, two Passive Floor-standing speakers from Klipsch and KEF.
Let's have a brief look at the main features
of Klipsch La Scala AL5 and KEF R11 first before getting into our more
detailed comparison.
Klipsch La Scala AL5 Key Specs
- 3-way Design
- 1" horn-loaded Tweeter
- 2" Midrange
- 15" fiber-composite cone with folded horn Woofer
- 51-20k Hz Frequency Response
- 105 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 100watts
- Weight:91.36kg
- Dimensions (H x W x D): 1016.0" x 24-1/4" x 25-5/16"( 1016.0 x 616.0 x 643.0mm )
KEF R11 Key Specs
- 3-way Design
- 1" Dome Tweeter
- 5" Midrange
- 4 x 6.5" Hybrid Aluminum Woofer
- 5" Midrange
- 46-28k Hz Frequency Response
- 90 dB Sensitivity
- Impedance: 8ohms
- Power Range:15-300watts
- Weight:37.70kg
- Dimensions (H x W x D): 1301.0" x 12-1/4" x 15-5/16"( 1301.0 x 312.0 x 389.0mm )
In the following sections, we will get into more detail in order to better understand how the Klipsch La Scala AL5 and KEF R11 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 La Scala AL5 and R11 are 3-way speakers.
| Driver |
Klipsch La Scala AL5 |
KEF R11 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 2-inch |
1 x 5-inch |
|
Woofer
|
1 x 15-inch
|
4 x 6.5-inch
|
La Scala AL5 features a 1" polyimide diaphragm compression horn-loaded Tweeter , a 2" Midrange and 1 x 15" fiber-composite cone with folded horn Woofer . On the other hand, the 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.
Frequency Response
La Scala AL5 has a frequency range of 51-20k Hz whereas R11 has a frequency range of 46-28k Hz. With a minimum frequency of 46Hz, the R11 can go significantly deeper on the low side and provide stronger bass compared to the La Scala AL5's min frequency of 51Hz.
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
La Scala AL5 and R11 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. La Scala AL5 sensitivity is rated at 105 dB and the R11's is at 90 dB. This 15 dB difference makes the Klipsch La Scala AL5 a more sensitive speaker compared to KEF R11, 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.
La Scala AL5 can handle a max power of 300 watts RMS from the amp the whereas La Scala AL5 has a max power handling value of 100 watts RMS , 200 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 La Scala AL5 and R11 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 Klipsch La Scala AL5's and KEF R11's external dimensions. Klipsch La Scala AL5 has external dimensions of 1016.0 x 616.0 x 643.0mm ( 40 x 24-1/4 x 25-5/16inch) whereas 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) .
KEF R11 is 304mm narrower and 254mm less deeper than Klipsch La Scala AL5 but it is also 285mm taller.
Below you can see the front view size comparison of Klipsch La Scala AL5 and KEF R11 in scale.
Comparison image of Klipsch La Scala AL5 and KEF R11 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 Klipsch La Scala AL5 is approximately 3960.9cm2 / 613.9inch2 and base area of the KEF R11 is approximately 1213.7cm2 / 188.1inch2. The La Scala AL5 requires 226% more surface area than the R11 which gives it a small disadvantage on placement in tight spaces.