Q Acoustics Concept 90 is a 2-way Passive Bass Reflex Center Channel speaker by Q Acoustics. It was released in 2021. Center channel speaker is an important component of a home theater system set-up as it delivers the listener significant part of the on-screen dialogue from your television. It features a 1" Dome Tweeter and 2 x 5" Paper composite Woofer.
The Concept centre: two 125 mm bass drivers either side of the 25 mm dome, in the same Gelcore cabinet as the 30 and 50.
The speaker has a frequency range of 67-30k Hz and a sensitivity of 90 dB. Q Acoustics Concept 90 has an MSRP of 649$.
Room Size Suitability
The size of the room where you plan to use the Q Acoustics Concept 90 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | 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.)
Q Acoustics's Concept Series of Loudspeakers
Concept 90 is a member of Q Acoustics's Concept series of Passive speakers. Below you can see the main specs of these speakers.
See all 6 Q Acoustics Concept models compared »
Q Acoustics Concept Series Speakers
Frequency Response of the Q Acoustics Concept 90 Speaker
Q Acoustics Concept 90 has a Frequency response range of 67-30k Hz and Power Range of 25-150 watts.
Here we have a comparison of how Concept 90's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
Center Channel Speakers
Crossover frequency of the Q Acoustics Concept 90?
The crossover frequency of the Concept 90 is set to 2100Hz. This is the threshold frequency where the higher frequency signals over this level are sent to the tweeter and the lower-frequency signals are sent to the woofer by the crossover component.
Impedance and Sensitivity
Q Acoustics Concept 90's nominal impedance level is
6 ohms but can go down to as low as
3.7 ohms, and has a sensitivity of
90 dB.
Sensitivity
Center Channel Speakers
Nominal Impedance of the 6 Ohms makes the Q Acoustics Concept 90 a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.
Sensitivity
90dB of the Q Acoustics Concept 90 is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the Q Acoustics Concept 90 plays in your room →
Running more than one pair from a single amplifier? Check the load it would present →
Minimum Impedance of the Q Acoustics Concept 90
Even though the nominal impedance of the Concept 90 is 6 ohms, the minimum impedance level of this speaker according to Q Acoustics is 3.7 ohms Q Acoustics Concept 90 so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.
What amplifier does the Q Acoustics Concept 90 need?
At normal listening levels in a medium room, about
10–150 W
per channel into 6 ohms.
Set your own conditions and we will rank every amplifier we cover.
Prefer to browse? Integrated amplifiers under $750, or every amplifier we cover.
Input Type
Concept 90 has Binding post type connectors and lets bi-amping/bi-wiring. Bi-wiring can enhance the overall transparency of your loudspeakers by using separate speaker wires for the low and high-frequency drivers from a single amplifier. Bi-amping, on the other hand, involves using separate amplifiers for the high and low-frequency drivers, potentially resulting in a greater dynamic range and reduced distortion.
Work out what gauge speaker cable this run needs →
Q Acoustics Concept 90 External Dimensions and Weight
Q Acoustics Concept 90 has external dimensions of (Height x Width x Depth) 7-1/4 x 21-5/8 x 10-3/16inch (184.0 x 550.0 x 259.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of Q Acoustics Concept 90 is approximately 1424.5cm2 / 220.8inch2.
Find speakers that fit your shelf or alcove →
WeightThe Q Acoustics Concept 90 weighs 12.30kg / 27.1lbs per piece. Here is a comparison of how Concept 90's weight compares with the average, max and min weights in its class.
Weight
All Center Channel Speakers
Weight
Center Channel Speakers under $750
Cabinet type and Materials
Q Acoustics Concept 90 has a
Bass Reflex type cabinet. Bass Reflex type loudspeakers (aka Ported, Vented or Reflex Port) have enclosures that uses a port, hole or vent cut into the cabinet. Ported designs are generally more efficient than the Sealed designs.
Port Position
Q Acoustics Concept 90 is a rear-firing port speaker so you have to make sure you leave enough space between the back of the speaker and wall or bookshelf so that it has room to breathe.
Does the Q Acoustics Concept 90 come with a Grille?
Concept 90 comes with grilles. The purpose of the grille is to protect the delicate driver elements from external impacts while still allowing the sound to pass as clearly as possible.
Recommended Accessories
Here is a list of accessories that we think you may need for the Q Acoustics Concept 90.
Official Product Page
Official manufacturer's product page for the Q Acoustics Concept 90 speaker can be found below:
Official Product Page for Q Acoustics Concept 90
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.