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KEF Q6 Meta vs SVS Ultra Evolution Center Comparison

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KEF Q6 Meta

Passive Center Channel | 63-20k Hz

KEF Q6 Meta
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SVS Ultra Evolution Center

Passive Center Channel | 40-40k Hz

SVS Ultra Evolution Center
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KEF Q6 Meta KEF Q6 Meta
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SVS Ultra Evolution Center SVS Ultra Evolution...
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KEF Q6 Meta
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KEF Q6 Meta vs SVS Ultra Evolution Center Speaker Comparison

In this review, we will be comparing Q6 Meta and Ultra Evolution Center, two Passive Center Channel speakers from KEF and SVS.

Let's have a brief look at the main features of KEF Q6 Meta and SVS Ultra Evolution Center 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 )

SVS Ultra Evolution Center Key Specs

  • 3-way Design
  • 1" Dome Tweeter
  • 4.5" Midrange
  • 2 x 6.5" Composite glass-fiber Woofer
  • 4.5" Midrange
  • 40-40k Hz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:20-225watts
  • Weight:12.20kg
  • Dimensions (H x W x D): 199.0" x 22" x 11.78"( 199 x 560 x 299.2mm )

What size room are the KEF Q6 Meta and SVS Ultra Evolution Center 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 SVS Ultra Evolution Center
Near-field Poor Poor
Small Room Poor Poor
Mid-size Room Good Good
Large Room Good Good
Very Large Room Average Average

(* 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 SVS Ultra Evolution Center 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

Both Q6 Meta and Ultra Evolution Center are 3-way speakers.

Driver KEF Q6 Meta SVS Ultra Evolution Center
Driver Setup 3-way 3-way
Tweeter 0.75-inch 1-inch
Midrange 1 x 4-inch 1 x 4.5-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 Ultra Evolution Center features a 1" aluminum Dome Tweeter , a 4.5" Midrange and 2 x 6.5" Composite glass-fiber Woofer with a Crossover frequency at 450HZ and 2200Hz.

Frequency Response

Q6 Meta has a frequency range of 63-20k Hz whereas Ultra Evolution Center has a frequency range of 40-40k Hz. With a minimum frequency of 40Hz, the Ultra Evolution Center can go significantly deeper on the low side and provide stronger bass compared to the Q6 Meta's min frequency of 63Hz.

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

Q6 Meta
Ultra Evolution Center
Min
Average
Max
High Frequency

Center Channel Speakers

KEF Q6 Meta
SVS Ultra Evolution Center
Min
Average
Max

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 Ultra Evolution Center which has a nominal impedance of 6 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 Ultra Evolution Center's is rated at 87 dB. This 1 dB difference makes the SVS Ultra Evolution Center a more sensitive speaker compared to KEF Q6 Meta, hence will play louder with the same amount of watts.

Sensitivity

Center Channel Speakers

Q6 Meta
Ultra Evolution Center
Min
Average
Max

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 225 watts RMS from the amp the whereas Q6 Meta has a max power handling value of 200 watts RMS , 25 watts less than the Ultra Evolution Center.

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

Ultra Evolution Center features Gold-plated 5-way posts which make bi-amping or bi-wiring possible. Q6 Meta has a Binding post which doesn't feature bi-amping/bi-wiring.

SVS Ultra Evolution CenterGold-plated 5-way Terminals
SVS Ultra Evolution Center's Gold-plated 5-way 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 KEF Q6 Meta's and SVS Ultra Evolution Center'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 SVS Ultra Evolution Center has external dimensions of 199 x 560 x 299.2mm ( 7.83 x 22.05 x 11.78”) .

KEF Q6 Meta is clearly the larger of the two speakers. Its body is 69mm wider, 11mm taller and 4mm deeper than SVS Ultra Evolution Center.

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 SVS Ultra Evolution Center is approximately 1674.4cm2 / 259.5inch2. The Q6 Meta requires 14% more surface area than the Ultra Evolution Center which gives it a small disadvantage 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 Q6 Meta weighs 14.14kg / 31.1lbs and the SVS Ultra Evolution Center weighs 12.20kg / 26.8lbs. This makes the Q6 Meta 16% heavier than the Ultra Evolution Center.

Here is a comparison of how Q6 Meta and Ultra Evolution Center's weights compare with the average, max and min weights in Passive Center Channel class.

Weight
All Center Channel Speakers
KEF Q6 Meta
SVS Ultra Evolution Center
Min
Average
Max

What's in the Box of KEF Q6 Meta?

Here are the items that are included inside the box of Q6 Meta:
  • Q6 Meta
  • Magnetic grilles (pair)
  • Rubber feet
  • Port bungs
  • User manual and warranty information​

  • Reasons to choose KEF Q6 Meta over SVS Ultra Evolution Center

    Reasons to choose SVS Ultra Evolution Center over KEF Q6 Meta

    Max Input Power 225 watts vs 200 watts Handle more power from your amplifier
    Sensitivity 87 dB vs 86 dB Play louder with same amount of amplification power
    Nominal Impedance 6 ohms vs 4 ohms Less selective with amplifiers
    Low Frequency Response 40 Hz vs 63 Hz Generates deeper bass
    High Frequency Response 40k Hz vs 20k Hz Generates higher frequency
    Height 199mm vs 210mm Easier to fit in smaller spaces
    Base Surface Area 1674cm2 vs 1905cm2 Takes less floor space
    Price per pair* 799USD vs 800USD costs less (*prices may change depending on the seller, location and time)
    KEF Q6 Meta vs SVS Ultra Evolution Center Specs Table
    Detailed comparison of specifications
    General KEF Q6 Meta SVS Ultra Evolution Center
    Brand KEF SVS
    Speaker Type Center channel speaker Center channel speaker
    Power Range Up to 200 watts 20-225 watts
    Sensitivity 86 dB 87 dB
    Impedance 4 ohms 6 ohms
    Impedance 3.2 ohms n/a
    Frequency Response 63-20k Hz 40-40k Hz
    Drivers
    Woofer Quantity 2 2
    Woofer Size 6.5" 6.5"
    Woofer Composition Aluminum Composite glass-fiber
    Woofer Surround Material Aluminum Rubber
    Tweeter Size 0.75" 1"
    Tweeter Type Hard-dome Dome
    Aimable Tweeter No No
    Midrange Driver 4" 4.5"
    Crossover Frequency 560 Hz, 2.7 kHz 450HZ and 2200Hz
    Firing Direction n/a rear
    Physical Specs
    Height 210.0mm (8.3") 199.0mm (7.8")
    Width 629.0mm (24.8") 560.0mm (22")
    Depth 303.0mm (11.9") 299.0mm (11.8")
    Weight 14.14kg (31.1lbs) 12.20kg (26.8lbs)
    Enclosure Passive Radiator Bass Reflex
    Available Colors Satin Black,Satin White,Walnut Piano Gloss Black,Piano Gloss White,Black Oak Veneer
    Grille Yes Yes
    Moisture Resistancy No No
    Connections
    Biamp Inputs n/a Yes
    Other
    Parts Warranty 5 Years 5 Years
    Labor Warranty 5 Years 5 Years

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