In this review, we will be comparing R2 Meta and Q650c, two Passive Center Channel speakers by KEF Let's have a brief look at the main features
of KEF R2 Meta and KEF Q650c first before getting into our more
detailed comparison.
What size room are the KEF R2 Meta and KEF Q650c 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 R2 Meta and KEF Q650c 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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through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
One of the fundamental differences between these two speakers is that R2 Meta is a 3-way design whereas the Q650c 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 R2 Meta |
KEF Q650c |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 5-inch |
- |
|
Woofer
|
2 x 5.25-inch
|
2 x 6.5-inch
|
R2 Meta features a 1" Aluminum with MAT absorber Hard-Dome Tweeter , a 5" Midrange and 2 x 5.25" Hybrid Aluminum Woofer with a Crossover frequency at 560Hz and 2500Hz. On the other hand, the Q650c features a 1" vented aluminum Dome Tweeter and 2 x 6.5" aluminum Woofer with a Crossover frequency at 2500Hz.
Frequency Response
R2 Meta has a frequency range of 67-28k Hz whereas Q650c has a frequency range of 64-28k Hz. With a minimum frequency of 64Hz, the Q650c can go slightly deeper then the R2 Meta's min frequency of 67Hz.
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 Center Channel class in our database.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel 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
R2 Meta is a 4 ohms speaker compared to the Q650c which has a nominal impedance of 8 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 R2 Meta can provide this impedance level.
On the other hand, they have the same sensitivity of 87 dBdB.
Sensitivity
Center Channel 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.
R2 Meta can handle a max power of 200 watts RMS from the amp the whereas Q650c has a max power handling value of 150 watts RMS, 50 watts less than the R2 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
R2 Meta features Custom 5-way bi-wire tool-less binding posts posts which make bi-amping or bi-wiring possible. Q650c has a Binding post which doesn't feature bi-amping/bi-wiring.
KEF R2 Meta's Custom 5-way bi-wire tool-less binding posts terminals allows Bi-amping or bi-wiring
KEF Q650c's Binding post terminals
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 R2 Meta's and KEF Q650c's external dimensions. KEF R2 Meta has external dimensions of 177.0 x 553.0 x 312.0mm ( 6-15/16-inch x 21-3/4-inch x 12-1/4-inch) whereas KEF Q650c has external dimensions of 212.0 x 631.0 x 304.0mm ( 8-5/16 x 24-13/16 x 11-15/16inch) .
KEF R2 Meta is 78mm narrower and 35mm shorter than KEF Q650c but it is also 8mm deeper.
Below you can see the front view size comparison of KEF R2 Meta and KEF Q650c in scale.
Comparison image of KEF R2 Meta and KEF Q650c 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 R2 Meta is approximately 1725.4cm2 / 267.4inch2 and base area of the KEF Q650c is approximately 1918.2cm2 / 297.3inch2. The R2 Meta requires 10% less surface area than the Q650c which gives it a small advantage 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 R2 Meta weighs 15.45kg / 34lbs and the KEF Q650c weighs 13.64kg / 30lbs. This makes the R2 Meta 13% heavier than the Q650c.
Here is a comparison of how R2 Meta and Q650c's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
What's in the Box of KEF R2 Meta?
Here are the items that are included inside the box of R2 Meta:
1 R2 Meta 1 microfiber grille Rubber feet User manual and warranty information
What's in the Box of KEF Q650c?
Here are the items that come with the Q650c:
Center-channel loudspeaker 4 Self-adhesive rubber feet Owners Manual Warranty Information
 Max Input Power |
200 watts
vs
150 watts
|
Handle more power from your amplifier |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
| Uni-Q Driver |
12th Generation
vs
11th Generation
|
Newer generation Driver |
 Height |
177mm
vs
212mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1725cm2 (553x312mm)
vs
1918cm2 (631x304mm)
|
Takes less floor space |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Minimum Impedance |
4.2 ohms
vs
3.2 ohms
|
Very low impedance levels puts more pressure on amplifier |
 Woofer Size |
6.5 inches
vs
5.25 inches
|
Larger woofer |
| Low Frequency Response |
64 Hz
vs
67 Hz
|
Generates deeper bass |
| Passive Radiator |
one 6.5-inch
vs
None
|
Increases the bass performance |
 Price per pair* |
750USD
vs
1399USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
KEF R2 Meta |
KEF Q650c |
| Brand |
KEF |
KEF |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
15-200 watts |
15-150 watts |
| Sensitivity |
87 dB |
87 dB |
| Impedance |
4 ohms |
8 ohms |
| Impedance |
3.2 ohms |
4.2 ohms |
| Frequency Response |
67-28k Hz |
64-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
5.25" |
6.5" |
| Woofer Composition |
Hybrid Aluminum |
aluminum |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Hard-Dome |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
5" |
No |
| Crossover Frequency |
560Hz and 2500Hz |
2500Hz |
Physical Specs |
|
|
| Height |
177.0mm (7") |
212.0mm (8.3") |
| Width |
553.0mm (21.8") |
631.0mm (24.8") |
| Depth |
312.0mm (12.3") |
304.0mm (12") |
| Weight |
15.45kg (34lbs) |
13.64kg (30lbs) |
| Enclosure |
Sealed |
Passive Radiator |
| Available Colors |
Black Gloss, White Gloss, Walnut |
Satin White, Satin Black, Walnut |
| Grille |
n/a |
optional |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
n/a |
Other |
|
|
| Parts Warranty |
5 years |
5 Years |
| Labor Warranty |
5 years |
5 Years |