In this review, we will be comparing two different type of speakers by KEF. KEF R3 Meta is a Bookshelf speaker whereas the R7 Meta is a Floor-standing speaker.
Let's have a brief look at the main features
of KEF R3 Meta and KEF R7 Meta first before getting into our more
detailed comparison.
R3 Meta and R7 Meta are members of KEF's R META series of speakers. Below you can find the loudspeakers from this series.
What size room are the KEF R3 Meta and KEF R7 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:
In the following sections, we will get into more detail in order to better understand how the KEF R3 Meta and KEF R7 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
Both R3 Meta and R7 Meta are 3-way speakers.
| Driver |
KEF R3 Meta |
KEF R7 Meta |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 5-inch |
1 x 5-inch |
|
Woofer
|
1 x 6.5-inch
|
2 x 6.5-inch
|
R3 Meta features a 1" Aluminum with MAT absorber Hard-Dome Tweeter , a 5" Midrange and 1 x 6.5" Hybrid Aluminum Woofer with a Crossover frequency at 420Hz and 2300Hz. On the other hand, the R7 Meta features a 1" Aluminum with MAT absorber Vented dome Tweeter , a 5" Midrange and 2 x 6.5" Hybrid Aluminum Woofer with a Crossover frequency at 400Hz and 2400Hz.
Frequency Response
R3 Meta has a frequency range of 58-28k Hz whereas R7 Meta has a frequency range of 48-28k Hz. With a minimum frequency of 48Hz, the R7 Meta can go significantly deeper on the low side and provide stronger bass compared to the R3 Meta's min frequency of 58Hz.
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
R3 Meta and R7 Meta have the same Impedance of 4 ohms but where they differ is the sensitivity levels. R3 Meta sensitivity is rated at 87 dB and the R7 Meta's is at 88 dB. This 1 dB difference makes the KEF R7 Meta a more sensitive speaker compared to KEF R3 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 R3 Meta and the R3 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.
R3 Meta can handle a max power of 250 watts RMS from the amp the whereas R3 Meta has a max power handling value of 180 watts RMS , 70 watts less than the R7 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
Both R3 Meta and R7 Meta features dual binding post speaker terminals for bi-amping or bi-wiring.
KEF R3 Meta's Custom 5-way bi-wire tool-less binding posts terminals allows Bi-amping or bi-wiring
KEF R7 Meta's Custom 5-way bi-wire tool-less binding posts terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both R3 Meta and R7 Meta have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 R3 Meta's and KEF R7 Meta's external dimensions. KEF R3 Meta has external dimensions of 423.0 x 202.0 x 337.0mm ( 16-5/8-inch x 7-15/16-inch x 13-1/4-inch) whereas KEF R7 Meta has external dimensions of 1112.0 x 312.0 x 385.0mm ( 43-3/4-inch x 12-1/4-inch x 15-1/8-inch) .
KEF R7 Meta is clearly the larger of the two speakers. Its body is 110mm wider, 689mm taller and 48mm deeper than KEF R3 Meta.
Below you can see the front view size comparison of KEF R3 Meta and KEF R7 Meta in scale.
Comparison image of KEF R3 Meta and KEF R7 Meta 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 R3 Meta is approximately 680.7cm2 / 105.5inch2 and base area of the KEF R7 Meta is approximately 1201.2cm2 / 186.2inch2. The R3 Meta requires 43% less surface area than the R7 Meta which gives it a small advantage on placement in tight spaces.
What's in the Box of KEF R3 Meta?
Here are the items that are included inside the box of R3 Meta:
1 pair of R3 Meta loudspeakers 1 pair of microfiber grilles Rubber feet Port bungs User manual and warranty information
What's in the Box of KEF R7 Meta?
Here are the items that come with the R7 Meta:
R7 Meta Microfiber grille Plinth and spike accessories Port bungs User manual and warranty information