Q550 is a 2-way Passive Passive Radiator Floor-standing speaker by KEF. It features a 1" Dome Tweeter and 2 x 5.25" Aluminum Woofer. Q550 also employs 2 x 5.25-inch passive radiators. The speaker has a frequency range of 58-28k Hz and a sensitivity of 87 dB. KEF Q550 has an MSRP of 1400$ per pair.
KEF Q550 Speaker Structure
Q550 also gives the user
optional Dolby Atmos capability by equipping the unit with upward-firing Dolby Atmos drivers.
Q550 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
KEF Q550 has a Frequency response range of 58-28k Hz at ±3dB (45Hz-50kHz at -6dB) and Power Range of 15-130 watts. At a minimum frequency of 58 Hz, Q550 will provide an average bass depth so depending on your use case, you may consider supplementing your system with a subwoofer.
Here we have a comparison of how Q550'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 Q550's Aluminum Woofer
Among the speakers in our database with a max MSRP price of 1500$ (Pair), these are the 5 Passive Floor-standing speakers that have the deeper bass levels than the KEF Q550's 58Hz:
KEF Q550's vented aluminum Dome Tweeter
What is the Crossover frequency of KEF Q550?
Crossover frequency of the Q550 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 Q550's nominal impedance level is 8 ohms but can go down to as low as 3.5 ohms, and has a sensitivity of 87 dB.
Sensitivity
Floor-standing Speakers
Is the KEF Q550 an easy to drive speaker?
8 Ohms is pretty much the standard impedance amongst stereo speakers and amplifiers so KEF Q550 is not considered a difficult to drive speaker from nominal Impedance perspective.
With a sensitivity level of only 87 dB, KEF Q550 is a difficult to drive speaker from Sensitivity perspective, make sure to choose an amplifier with hogh output if you like listening your music at high volume levels.
Minimum Impedance of KEF Q550
Even though the nominal impedance of the Q550 is 8 ohms, the minimum impedance level of this speaker according to KEF is 3.5 ohms KEF Q550 so while choosing an amplifier, you should ideally check if the unit you are considering can provide this impedance level.
Input Type
Q550 features Binding post type connectors. Bi-amping and Bi-wiring is not possible.
KEF Q550 Speaker Size: Weight and Dimensions
KEF Q550 has external dimensions of (Height x Width x Depth) 35-3/16 x 11-5/8 x 12-5/16inch (894.0 x 296.0 x 313.0mm ).
Cabinet type and Materials
KEF Q550 has a
Passive Radiator type cabinet and MDF/Wood-grain vinyl finish.
Speaker Feet
KEF Q550 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 Q550 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 Q550 is available in Walnut.
KEF Q550 with Grille
What's in the Box of KEF Q550?
Here are the items that are included inside the box of Q550:
Floorstanding loudspeaker2 Outrigger feet4 Spikes6 Screws6 Washers4 Rubber insertsHex-keyOwners ManualWarranty Information
User's Manual
For more information about how to setup, use and maintain the KEF Q550, use the direct link below to download the official manual document:
Download User Manual for KEF Q550
Official Brochure
Here is a link to download the official brochure for the KEF Q550 speaker:
Official Brochure for KEF Q550
Official Product Page
Official manufacturer's product page for the KEF Q550 speaker can be found below:
Official Product Page for KEF Q550
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.
