Q Acoustics Concept 300 is a 2-way Passive Bass Reflex Bookshelf speaker by Q Acoustics. It was released in 2018. It features a 1.1" Dome Tweeter and 1 x 6.5" Paper composite Woofer.
A 165 mm mid-bass and a 28 mm dome in a Gelcore cabinet, supplied with the Tensegrity stand - an aluminium tripod strung under tension so the speaker sits on almost nothing. Dimensions here are the cabinet alone; on its stand it is 690 mm tall.
The speaker has a frequency range of 55-30k Hz and a sensitivity of 84 dB. Q Acoustics Concept 300 has an MSRP of 2749$ per pair.
Room Size Suitability
The size of the room where you plan to use the Q Acoustics Concept 300 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 300 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
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Frequency Response of the Q Acoustics Concept 300 Speaker
Q Acoustics Concept 300 has a Frequency response range of 55-30k Hz at ±3dB and Power Range of 25-200 watts. With a minimum frequency of 55 Hz, Concept 300 delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.
To focus on the subwoofers that are in a similar price range with Q Acoustics Concept 300, check out the Powered Subwoofers under $3000. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how Concept 300's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
Among the speakers in our database with a max MSRP price of 3000$ (Pair), these are the 5 Passive Bookshelf speakers that have the deeper bass levels than the Q Acoustics Concept 300's 55Hz:
Crossover frequency of the Q Acoustics Concept 300?
The Crossover frequency of the Concept 300 is set to 2500Hz. 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 300's nominal impedance level is
6 ohms but can go down to as low as
4.7 ohms, and has a sensitivity of
84 dB.
Sensitivity
Bookshelf Speakers
Nominal Impedance of the 6 Ohms makes the Q Acoustics Concept 300 a relatively difficult to drive speaker compared to more frequently found 8 ohms speakers from nominal Impedance perspective.
Sensitivity
With a sensitivity level of only 84 dB, Q Acoustics Concept 300 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with a high output if you like listening to your music at high volume levels. You may especially have a hard time using Tube amplifiers which are traditionally very low power compared to Class A/B or Class D amps.
Minimum Impedance of the Q Acoustics Concept 300
Even though the nominal impedance of the Concept 300 is 6 ohms, the minimum impedance level of this speaker according to Q Acoustics is 4.7 ohms Q Acoustics Concept 300 so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.
Check the amplifiers that are in a similar price range to the Q Acoustics Concept 300:
Input Type
Concept 300 features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
Q Acoustics Concept 300 External Dimensions and Weight
Q Acoustics Concept 300 has external dimensions of (Height x Width x Depth) 14 x 7-7/8 x 15-3/4inch (355.0 x 200.0 x 400.0mm ).
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 300 is approximately 800.0cm2 / 124.0inch2.
WeightThe Q Acoustics Concept 300 weighs 14.50kg / 31.9lbs per piece. Here is a comparison of how Concept 300's weight compares with the average, max and min weights in its class.
Weight
All Bookshelf Speakers
Weight
Bookshelf Speakers under $3000
Cabinet type and Materials
Q Acoustics Concept 300 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 300 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.
Wall Mounting
Concept 300 doesn't sport any built-in mounting bracket, so you need an external structure to mount it on walls.
Does the Q Acoustics Concept 300 come with a Grille?
Concept 300 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 300.
- Speaker Cable and Connectors
- Vibration Isolators: IsoAcoustics isolators are our favorite isolators but you may find more affordable options too.
- Acoustic Panels and Treatments: Your room is as important as your stereo equipment so acoustic treatments goes a long way in improving the overall performance.
- Speaker Stands: Stands bring your bookshelf speakers to ideal height (rule of thumb is to have the tweeter level with your ear in your listening position), helps stability and acoustical isolation.
Official Product Page
Official manufacturer's product page for the Q Acoustics Concept 300 speaker can be found below:
Official Product Page for Q Acoustics Concept 300
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.