KEF Q750 is a 2-way Passive Passive Radiator Floor-standing speaker by KEF. It features a 1" Dome Tweeter and 2 x 6.5" Aluminum Woofer. Q750 also employs 2 x 6.25-inch passive radiators. The speaker has a frequency range of 48-28k Hz and a sensitivity of 88 dB. KEF Q750 has an MSRP of 1800$ per pair.
Q750 also gives the user optional Dolby Atmos capability by equipping the unit with upward-firing Dolby Atmos drivers.
Room Size Suitability
The size of the room where you plan to use the KEF Q750 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 | Bad |
| Small Room | Poor |
| Mid-size Room | Good |
| Large Room | Good |
| 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.)
KEF's Q Series of Loudspeakers
Q750 is a member of KEF's Q series of Passive speakers. Below you can see the main specs of these speakers.
KEF Q Series Speakers
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Frequency Response of the KEF Q750 Speaker
KEF Q750 has a Frequency response range of 48-28k Hz at ±3dB and Power Range of 15-150 watts. With a minimum frequency of 48 Hz, Q750 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 KEF Q750, check out the Powered Subwoofers under $2000. Alternatively, find the Full list of Powered Subwoofers regardless of the price.
Here we have a comparison of how Q750's Low and High frequency values compare with the average, max and min Low and High frequency values in its class.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing Speakers
KEF Q750's Aluminum Woofer
Among the speakers in our database with a max MSRP price of 2000$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the KEF Q750's 48Hz:
KEF Q750's vented aluminum Dome Tweeter
Crossover frequency of the KEF Q750?
The Crossover frequency of the Q750 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
KEF Q750's nominal impedance level is
8 ohms but can go down to as low as
3.8 ohms, and has a sensitivity of
88 dB.
Sensitivity
Floor-standing Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so KEF Q750 is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
88dB of the KEF Q750 is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise.
Minimum Impedance of the KEF Q750
Even though the nominal impedance of the Q750 is 8 ohms, the minimum impedance level of this speaker according to KEF is 3.8 ohms KEF Q750 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 KEF Q750:
Input Type
Q750 features Binding post type connectors. Bi-amping and Bi-wiring are not possible.
KEF Q750 Back View
KEF Q750's Binding post terminals
KEF Q750 External Dimensions and Weight
KEF Q750 has external dimensions of (Height x Width x Depth) 37-3/16 x 12-7/8 x 12-3/8inch (945.0 x 328.0 x 315.0mm ).
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 KEF Q750 is approximately 1033.2cm2 / 160.1inch2.
WeightThe KEF Q750 weighs 16.59kg / 36.5lbs per piece. Here is a comparison of how Q750's weight compares with the average, max and min weights in its class.
Weight
All Floor-standing Speakers
Weight
Floor-standing Speakers under $2000
How does the KEF Q750 compare to the KEF Q950?
One of the natural alternative to the KEF Q750 is the Q950 which is located one step higher in KEF's Passive Floor-standing selection.
Check the Detailed Comparison of KEF Q750 vs Q950 for more details.
Cabinet type and Materials
KEF Q750 has a
Passive Radiator type cabinet and a MDF/Wood-grain vinyl finish.
Speaker Feet
KEF Q750 comes with the parts below which you can use to secure your loudspeaker on the surface that you are putting on:
2 Outrigger feet4 Spikes It is always recommended to use some kind of feet under all types of speakers. Besides limiting the movement of the speakers, it also compensates for non-flat surfaces and limits the contact surface area of the speaker. Rubber based feet also help isolating the vibrations within certain frequency ranges.
Port Position
KEF Q750 is a front-firing port speaker , which gives you more flexibility compared to rear firing speakers when you need to place it close against a wall or other surfaces.
Available colors
KEF Q750 is available in Walnut.
KEF Q750 with Grille
What's in the Box of KEF Q750?
Here are the items that are included inside the box of Q750:
Floorstanding loudspeaker2 Outrigger feet4 Spikes6 Screws6 Washers4 Rubber insertsHex-keyOwners ManualWarranty Information
Recommended Accessories
Here is a list of accessories that we think you may need for the KEF Q750.
User's Manual
For more information about how to setup, use and maintain the KEF Q750, use the direct link below to download the official manual document:
Download User Manual for KEF Q750
Official Brochure
Here is a link to download the official brochure for the KEF Q750 speaker:
Official Brochure for KEF Q750
Official Product Page
Official manufacturer's product page for the KEF Q750 speaker can be found below:
Official Product Page for KEF Q750
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.