In this review, we will be comparing Q6 Meta and Q650c, two Passive Center Channel speakers by KEF
Let's have a brief look at the main features
of KEF Q6 Meta and KEF Q650c first before getting into our more
detailed comparison.
KEF Q6 Meta Key Specs
- 3-way Design
- 12th Generation Uni-Q Driver
- 0.75" Hard-dome Tweeter
- 4" Midrange
- 2 x 6.5" Aluminum Woofer
- 63-20k Hz Frequency Response
- 86 dB Sensitivity
- Impedance: 4ohms
- Power Range:Up to 200watts
- Weight:14.14kg
- Dimensions (H x W x D): 210.0" x 24.8" x 11.9"( 210 x 629 x 303 mm )
KEF Q650c Key Specs
- 2-way Design
- 11th Generation Uni-Q Driver
- 1" Dome Tweeter
- 2 x 6.5" aluminum Woofer
- 64-28k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 8ohms
- Power Range:15-150watts
- Weight:13.64kg
- Dimensions (H x W x D): 212.0" x 24-13/16" x 11-15/16"( 212.0 x 631.0 x 304.0mm )
What size room are the KEF Q6 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:
| Listening Environment* |
KEF Q6 Meta |
KEF Q650c |
| Near-field |
Poor |
Poor |
| Small Room |
Poor |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Good |
Average |
| Very Large Room |
Average |
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 Q6 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.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking
through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
One of the fundamental differences between these two speakers is that Q6 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 Q6 Meta |
KEF Q650c |
|
Driver Setup
|
3-way
|
2-way
|
|
Tweeter
|
0.75-inch
|
1-inch
|
|
Midrange
|
1 x 4-inch |
- |
|
Woofer
|
2 x 6.5-inch
|
2 x 6.5-inch
|
Q6 Meta features a 0.75" vented aluminum dome with MAT absorber Hard-dome Tweeter , a 4" Midrange and 2 x 6.5" Aluminum Woofer with a Crossover frequency at 560 Hz, 2.7 kHz. 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
Q6 Meta has a frequency range of 63-20k Hz whereas Q650c has a frequency range of 64-28k Hz. With a minimum frequency of 63Hz, the Q6 Meta can go slightly deeper then the Q650c's min frequency of 64Hz.
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
Q6 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 Q6 Meta can provide this impedance level.
These two speakers also have different sensitivity levels. Q6 Meta sensitivity is rated at 86 dB and the Q650c's is rated at 87 dB. This 1 dB difference makes the KEF Q650c a more sensitive speaker compared to KEF Q6 Meta, hence will play louder with the same amount of watts.
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.
Q6 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 Q6 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
Q6 Meta features Binding post type posts and Q650c has a Binding post type posts. None of these speakers feature bi-amping/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 Q6 Meta's and KEF Q650c's external dimensions. KEF Q6 Meta has external dimensions of 210 x 629 x 303 mm ( 8.3 x 24.8 x 11.9 in.) 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 Q650c is clearly the larger of the two speakers. Its body is 2mm wider, 2mm taller and 1mm deeper than KEF Q6 Meta.
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 Q6 Meta is approximately 1905.9cm2 / 295.4inch2 and base area of the KEF Q650c is approximately 1918.2cm2 / 297.3inch2. The Q6 Meta requires 1% less surface area than the Q650c which gives it a small advantage on placement in tight spaces.