In this review, we will be comparing two different type of speakers by KEF. KEF Q Concerto Meta is a Bookshelf speaker whereas the Q4 Meta is a Surround speaker.
Let's have a brief look at the main features
of KEF Q Concerto Meta and KEF Q4 Meta first before getting into our more
detailed comparison.
KEF Q Concerto Meta Key Specs
- 3-way Design
- 12th Generation Uni-Q Driver
- 0.75" Hard dome Tweeter
- 4" Midrange
- 6.5" Aluminum Woofer
- 48-20k Hz Frequency Response
- 85 dB Sensitivity
- Impedance: 4ohms
- Power Range:Up to 180watts
- Weight:9.50kg
- Dimensions (H x W x D): 415.0" x 8.3" x 12.4"( 415 x 210 x 315 mm )
KEF Q4 Meta Key Specs
- 2-way Design
- 12th Generation Uni-Q Driver
- 1" Hard-dome Tweeter
- 5.25" Aluminum Woofer
- 65-20k Hz Frequency Response
- 86 dB Sensitivity
- Impedance: 4ohms
- Power Range:Up to 150watts
- Weight:5.73kg
- Dimensions (H x W x D): 400.0" x 9.8" x 5.6"( 400 x 250 x 142 mm )
Q Concerto Meta and Q4 Meta are members of KEF's Q Meta series of speakers. Below you can find the loudspeakers from this series.
KEF Q Meta Series History
What size room are the KEF Q Concerto Meta and KEF Q4 Meta 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:
| Listening Environment* |
KEF Q Concerto Meta |
KEF Q4 Meta |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2, Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: > 400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual listening experience changes depending on floor height, room shape, surface materials, listening position, speaker locations, etc.)
In the following sections, we will get into more detail in order to better understand how the KEF Q Concerto Meta and KEF Q4 Meta 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
One of the fundamental differences between these two speakers is that Q Concerto Meta is a 3-way design whereas the Q4 Meta is a 2-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.
| Driver |
KEF Q Concerto Meta |
KEF Q4 Meta |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
0.75-inch
|
1-inch
|
|
Midrange
|
1 x 4-inch |
- |
|
Woofer
|
1 x 6.5-inch
|
1 x 5.25-inch
|
Q Concerto Meta features a 0.75" vented aluminum dome with MAT absorber Hard dome Tweeter , a 4" Midrange and 1 x 6.5" Aluminum Woofer with a Crossover frequency at 430 Hz, 2.9 kHz. On the other hand, the Q4 Meta features a 1" vented aluminum dome with MAT absorber Hard-dome Tweeter and 1 x 5.25" Aluminum Woofer with a Crossover frequency at 1.8 kHz.
Frequency Response
Q Concerto Meta has a frequency range of 48-20k Hz whereas Q4 Meta has a frequency range of 65-20k Hz. With a minimum frequency of 48Hz, the Q Concerto Meta can go significantly deeper on the low side and provide stronger bass compared to the Q4 Meta's min frequency of 65Hz.
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.
Impedance and Sensitivity
Q Concerto Meta and Q4 Meta have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Q Concerto Meta sensitivity is rated at 85 dB and the Q4 Meta's is at 86 dB. This 1 dB difference makes the KEF Q4 Meta a more sensitive speaker compared to KEF Q Concerto Meta, hence will play louder with the same amount of watts.
One thing to keep in mind that the lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit comared to higher impedance speakers especially at high volume levels, so make sure the amp you pair with the Q Concerto Meta and the Q Concerto Meta can provide this impedance level.
Sensitivity
Bookshelf 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.
Q Concerto Meta can handle a max power of 180 watts RMS from the amp the whereas Q4 Meta has a max power handling value of 150 watts RMS, 30 watts less than the Q Concerto Meta.
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
Q Concerto Meta features Binding Post type posts and Q4 Meta has a Binding Post type posts. None of these speakers feature bi-amping/bi-wiring.
KEF Q4 Meta's Binding Post terminals
Cabinet Type and Port Position
Q Concerto Meta has a rear firing port whereas Q4 Meta has a side firing ports.
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 Q Concerto Meta's and KEF Q4 Meta's external dimensions. KEF Q Concerto Meta has external dimensions of 415 x 210 x 315 mm ( 16.3 x 8.3 x 12.4 in.) whereas KEF Q4 Meta has external dimensions of 400 x 250 x 142 mm ( 15.7 x 9.8 x 5.6 in.) .
KEF Q4 Meta is 15mm shorter and 173mm less deeper than KEF Q Concerto Meta but it is also 40mm 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 KEF Q Concerto Meta is approximately 661.5cm2 / 102.5inch2 and base area of the KEF Q4 Meta is approximately 355.0cm2 / 55.0inch2. The Q Concerto Meta requires 86% more surface area than the Q4 Meta which gives it a small disadvantage on placement in tight spaces.
What's in the Box of KEF Q Concerto Meta?
Here are the items that are included inside the box of Q Concerto Meta:
Q3 Concerto Meta (pair) Magnetic grilles (pair) Rubber feet Port bungs User manual and warranty information
What's in the Box of KEF Q4 Meta?
Here are the items that come with the Q4 Meta:
Q4 Meta Magnetic grilles (pair) Rubber feet Port bungs User manual and warranty information
Max Input Power 
Driver Setup 
Woofer Size 
Sensitivity 
Height 
Base Surface Area 
Price per pair*