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Q Acoustics Concept Centre vs Q Acoustics Concept 50 Comparison

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Q Acoustics Concept Centre

Passive Center Channel | 75-22k Hz

Q Acoustics Concept Centre
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Q Acoustics Concept 50

Passive Floor-standing | 42-30k Hz

Q Acoustics Concept 50
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Q Acoustics Concept Centre Q Acoustics Concept...
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Q Acoustics Concept 50 Q Acoustics Concept...
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Q Acoustics Concept Centre vs Q Acoustics Concept 50 Speaker Comparison

In this review, we will be comparing two different type of speakers by Q Acoustics. Q Acoustics Concept Centre is a Center Channel speaker whereas the Concept 50 is a Floor-standing speaker.

Let's have a brief look at the main features of Q Acoustics Concept Centre and Q Acoustics Concept 50 first before getting into our more detailed comparison.

Q Acoustics Concept Centre Key Specs

  • 2-way Design
  • 1" Dome Tweeter
  • 2 x 4" Paper composite Woofer
  • 75-22k Hz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:25-75watts
  • Weight:6.80kg
  • Dimensions (H x W x D): 6-1/8" x 16-15/16" x 9-1/16" ( 156.0 x 430.0 x 230.0mm )

Q Acoustics Concept 50 Key Specs

  • 2-way Design
  • 1" Dome Tweeter
  • 2 x 5" Paper composite Woofer
  • 42-30k Hz Frequency Response
  • 90.5 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:25-150watts
  • Weight:22.90kg
  • Dimensions (H x W x D): 40-3/8" x 16-7/16" x 12-9/16" ( 1025.0 x 418.0 x 319.0mm )

Concept Centre and Concept 50 are members of Q Acoustics's Concept series of speakers. Below you can find the loudspeakers from this series.

Q Acoustics Concept Series History
Model Body Frequency SensitivityImpedance Woofer
Q Acoustics Concept 30
  
Bookshelf 54-30k Hz 87 dB6Ω 1 x 5"
Q Acoustics Concept 50
Floor-standing 42-30k Hz 90.5 dB6Ω 2 x 5"
Q Acoustics Concept 90
  
Center Channel 67-30k Hz 90 dB6Ω 2 x 5"
Q Acoustics Concept 300
  
Bookshelf 55-30k Hz 84 dB6Ω 1 x 6.5"
Q Acoustics Concept 500
  
Floor-standing 41-30k Hz 6Ω 2 x 6.5"
Q Acoustics Concept Centre
Center Channel 75-22k Hz 88 dB6Ω 2 x 4"

What size room are the Q Acoustics Concept Centre and Q Acoustics Concept 50 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* Q Acoustics Concept Centre Q Acoustics Concept 50
Near-field Poor Bad
Small Room Average Poor
Mid-size Room Good Average
Large Room Average Good
Very Large Room Poor 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 Q Acoustics Concept Centre and Q Acoustics Concept 50 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 Concept Centre and Concept 50 are 2-way speakers.

Driver Q Acoustics Concept Centre Q Acoustics Concept 50
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 2 x 4-inch 2 x 5-inch

Concept Centre features a 1" Dome Tweeter and 2 x 4" Paper composite Woofer with a Crossover frequency at 2900Hz. On the other hand, the Concept 50 features a 1" Dome Tweeter and 2 x 5" Paper composite Woofer with a Crossover frequency at 2100Hz.

Frequency Response

Concept Centre has a frequency range of 75-22k Hz whereas Concept 50 has a frequency range of 42-30k Hz. With a minimum frequency of 42Hz, the Concept 50 can go significantly deeper on the low side and provide stronger bass compared to the Concept Centre's min frequency of 75Hz.

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

Concept Centre
Concept 50
Min
Average
Max
High Frequency

Center Channel Speakers

Q Acoustics Concept Centre
Q Acoustics Concept 50
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

Concept Centre and Concept 50 have the same Impedance of 6 ohms but where they differ is the sensitivity levels. Concept Centre sensitivity is rated at 88 dB and the Concept 50's is at 90.5 dB. This 3 dB difference makes the Q Acoustics Concept 50 a more sensitive speaker compared to Q Acoustics Concept Centre, hence will play louder with the same amount of watts.

Sensitivity

Center Channel Speakers

Concept Centre
Concept 50
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.

Concept Centre can handle a max power of 150 watts RMS from the amp the whereas Concept Centre has a max power handling value of 75 watts RMS , 75 watts less than the Concept 50.

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

Concept Centre features Binding post type posts and Concept 50 has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.

Cabinet Type and Port Position

Both Concept Centre and Concept 50 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 Q Acoustics Concept Centre's and Q Acoustics Concept 50's external dimensions. Q Acoustics Concept Centre has external dimensions of 156.0 x 430.0 x 230.0mm ( 6-1/8 x 16-15/16 x 9-1/16inch) whereas Q Acoustics Concept 50 has external dimensions of 1025.0 x 418.0 x 319.0mm ( 40-3/8 x 16-7/16 x 12-9/16inch) .

Q Acoustics Concept Centre is 869mm shorter and 89mm less deeper than Q Acoustics Concept 50 but it is also 12mm 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 Q Acoustics Concept Centre is approximately 989.0cm2 / 153.3inch2 and base area of the Q Acoustics Concept 50 is approximately 1333.4cm2 / 206.7inch2. The Concept Centre requires 26% less surface area than the Concept 50 which gives it a small advantage on placement in tight spaces.


Reasons to choose Q Acoustics Concept Centre over Q Acoustics Concept 50
Minimum Impedance 4 ohms vs 3.6 ohms Very low impedance levels puts more pressure on amplifier
Height 156mm vs 1025mm Easier to fit in smaller spaces
Base Surface Area 989cm2 vs 1333cm2 Takes less floor space
Price per pair* 249USD vs 1999USD costs less (*prices may change depending on the seller, location and time)

Reasons to choose Q Acoustics Concept 50 over Q Acoustics Concept Centre

Max Input Power 150 watts vs 75 watts Handle more power from your amplifier
Sensitivity 91 dB vs 88 dB Play louder with same amount of amplification power
Woofer Size 5 inches vs 4 inches Larger woofer
Low Frequency Response 42 Hz vs 75 Hz Generates deeper bass
High Frequency Response 30k Hz vs 22k Hz Generates higher frequency
Q Acoustics Concept Centre vs Q Acoustics Concept 50 Specs Table
Detailed comparison of specifications
General Q Acoustics Concept Centre Q Acoustics Concept 50
Brand Q Acoustics Q Acoustics
Speaker Type Center channel speaker Floor-standing speaker
Power Range 25-75 watts 25-150 watts
Sensitivity 88 dB 90.5 dB
Impedance 6 ohms 6 ohms
Impedance 4 ohms 3.6 ohms
Frequency Response 75-22k Hz 42-30k Hz
Drivers
Woofer Quantity 2 2
Woofer Size 4" 5"
Woofer Composition Paper composite Paper composite
Tweeter Size 1" 1"
Tweeter Type Dome Dome
Aimable Tweeter No No
Midrange Driver No No
Crossover Frequency 2900Hz 2100Hz
Firing Direction rear rear
Physical Specs
Height 156.0mm (6.1") 1025.0mm (40.4")
Width 430.0mm (16.9") 418.0mm (16.5")
Depth 230.0mm (9.1") 319.0mm (12.6")
Weight 6.80kg (15lbs) 22.90kg (50.4lbs)
Enclosure Bass Reflex Bass Reflex
Grille Yes Yes
Moisture Resistancy No No
Connections
Biamp Inputs No No
Other
Parts Warranty 5 Years 5 Years
Labor Warranty 5 Years 5 Years

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