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KEF Q550 Floorstanding Speaker - Each (Black)
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Purchase options and add-ons
Brand | KEF |
Model Name | Q550B |
Speaker Type | Floor Standing |
Connectivity Technology | Auxiliary |
Recommended Uses For Product | For Surround Sound Systems, For Computers, For Televisions, For DVD Players, For Music Players |
About this item
- The KEF Q550 Floorstanding speaker is the newest iteration of KEF award-winning Q Series. The Q550 features a redesigned cabinet, sleek new finishes, and an improved Uni-Q Driver Array.
- The Q550 contains an enhanced Uni-Q Driver Array designed to smooth out treble frequencies, and reimagined crossovers to provide cleaner and more accurate bass.
- The Q550 features New internal upgrades for its low-frequency drivers, including New Surrounds and rear Suspension, for immaculate bass no matter the volume.
- The Q550 features a 5.25” Uni-Q Driver Array, one 5.25” bass driver, and two 5.25” auxiliary bass radiators.
- Q550 Magnetic cloth grilles sold separatley
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Important information
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From the manufacturer

The remarkable Q Series floorstanding speakers excel when space is limited. Featuring the signature KEF Uni-Q driver array the Q550s deliver detailed natural sound with high clarity and tight bass. A refined 5.25 in. Uni-Q driver complemented by a 5.25 in. woofer and two 5.25 in. ABRs deliver music with stunning detail and emotion. Perfect for movies or music.

"Sit anywhere" Uni-Q Sound
At the heart of the evolved Q Series is the Uni-Q driver array. KEF's signature innovation places the tweeter in the acoustic center of the midrange cone, bringing the acoustic ideal of a single point source closer than ever to realisation. The result is a more detailed, more accurate three-dimensional sound image, which is dispersed more evenly throughout the room than is possible with a conventional speaker. Uni-Q's ultra-wide dispersion is further enhanced by KEF's 'tangerine' waveguide over the tweeter dome.
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Uni-Q sound taken to the next levelWith the addition of the damped tweeter loading tube providing a gentle termination of sound produced from the back of the tweeter, lower treble performance is improved dramatically and a new low-distortion inductor on the crossover provides cleaner bass. To optimize the resolution and purity of the Q Series bookshelf speakers, the Uni-Q driver has been repositioned to the center of the cabinet to reduce unwanted internal resonance and adds refinement to their sonic clarity and detail. |
Q Series Advanced Cabinet DesignIn the Q Series Floorstanders the Uni-Q driver has been placed in sealed box within the cabinet. The closed box midrange cabinet design reduces the load on the Uni-Q midrange cone, increasing clarity and detail while delivering cleaner, punchier bass. Midrange clarity is enhanced again through improvements to the mid-bass driver that allowed the DC blocking capacitor to be eliminated. Its removal also created a more natural bass roll-off between the drivers. |
Q Series WoofersLow-frequency (LF) drivers now have a larger roll surround, along with a new spider suspension to produce cleaner bass at high volumes. A new cone structure improves midrange clarity, and an enhanced Auxiliary Bass Radiators (ABRs) with a new surround and rear suspension delivers better controlled and more impressive bass. |

About KEF
Founded in 1961, KEF has been providing the world's audiophiles with unparalleled sound quality. KEF is at the cutting edge of field-leading acoustic research, and a standard for everyone else to live up to.
Innovation is what sets KEF apart. The results are plain for all to see… and hear.
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Q150 Bookshelf Speaker | Q350 Bookshelf Speaker | Q550 Floorstanding Speaker | Q750 Floorstanding Speaker | Q950 Floorstanding Speaker | Q250c Center Channel Speaker | |
Customer Reviews |
4.7 out of 5 stars
1,012
|
4.6 out of 5 stars
501
|
4.5 out of 5 stars
74
|
4.4 out of 5 stars
54
|
4.6 out of 5 stars
77
|
4.7 out of 5 stars
65
|
Price | $349.99$349.99 | $799.99$799.99 | $749.99$749.99 | $899.99$899.99 | $1,099.99$1,099.99 | $599.99$599.99 |
Design | Two-way bass reflex | Two-way bass reflex | Two and a half-way bass reflex | Two and a half-way bass reflex | Two and a half-way bass reflex | Two-way bass reflex |
Drive Units | 5.25 in. Uni-Q Driver Array | 6.5 in. Uni-Q Driver Array | 5.25 in. Uni-Q Driver Array / 5.25 in. Woofer / 2x 5.25 In. ABR | 6.5 in. Uni-Q Driver Array / 6.5 in. Woofer / 2x 6.5 In. ABR | 8 in. Uni-Q Driver Array / 8 in. Woofer / 2x 8 In. ABR | 5.25 in. Uni-Q Driver Array / 2x 5.25 In. ABR |
Frequency Range Free Field (-6dB) | 47Hz | 42Hz | 45Hz | 42Hz | 38Hz | 57Hz |
Frequency Response (±3dB) | 51Hz - 28kHz | 63Hz - 28kHz | 58Hz - 28kHz | 48Hz-28kHz | 44Hz-28kHz | 68Hz - 28kHz |
Crossover Frequency | 2.5kHz | 2.5kHz | 2.5kHz | 2.5kHz | 2.2kHz | 2.5kHz |
Amplifier Requirements | 10-100W | 15-120W | 15-130W | 15-150W | 15-200W | 10-100w |
Sensitivity (2.83V/1m) | 86dB | 87dB | 87dB | 88dB | 91dB | 87dB |
Maximum Output | 108dB | 110dB | 110dB | 111dB | 113dB | 108dB |
Nominal Impedance | 8Ω (min.3.7Ω) | 8Ω (min.3.7Ω) | 8Ω (min.3.5Ω) | 8Ω (min.3.8Ω) | 8Ω (min.3.2Ω) | 8Ω (min.3.4Ω) |
Dimension (H X W X D) | 11.92 inches x 7.08 inches x 10.944 inches | 14.25 inches x 8.26 inches x 12.04 inches | 36.45 inches x 11.77 inches x 12.20 inches | 38.46 inches x 12.71 inches x 12.20 inches | 43.93 inches x 14.05 inches x 12.91 inches | 7.24 inches x 20.66 inches x 8.42 inches |
Compare with similar items
This Item ![]() KEF Q550 Floorstanding Speaker - Each (Black) | Recommendations | dummy | dummy | dummy | dummy | |
Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | Try again! Added to Cart | |
Price | $631.49$631.49 | $1,099.99$1,099.99 | $649.99$649.99 | $632.00$632.00 | $1,099.00$1,099.00 | $899.99$899.99 |
Delivery | Get it as soon as Saturday, Mar 23 | Get it Mar 21 - 25 | Get it as soon as Wednesday, Mar 27 | — | Get it as soon as Monday, Mar 25 | Get it as soon as Tuesday, Mar 26 |
Customer Ratings | ||||||
Quality of material | 5.0 | 4.5 | 4.8 | 4.5 | 4.5 | 4.1 |
Sound quality | 5.0 | 4.8 | 4.7 | 4.5 | 5.0 | 4.3 |
Value for money | 4.6 | 4.7 | 4.7 | 4.5 | 4.6 | 4.2 |
Sold By | Amazon.com | Audio Advice | WORLD WIDE STEREO | ListenUp | Amazon.com | Amazon.com |
speaker size | 5.25 inches | 8 inches | 6.5 inches | 105 centimeters | 8 inches | 6.5 inches |
power source | AC | — | Corded Electric | Corded Electric | Corded Electric | Corded Electric |
connectivity tech | Auxiliary | Auxiliary | Wired | Auxiliary | — | Auxiliary |
speaker type | Floor Standing | Tower | Floorstanding Speakers | Tower | Surround Sound | Floor Standing |
mounting type | Floor Standing | Floor Standing | Floor Mount,Magnetic Mount | Floor Standing | Floor Standing | Floor Standing |
weight | 32 pounds | 30 pounds | 55.45 pounds | 6 kilograms | 43.09 kilograms | 46 pounds |
model name | Q550B | Q950 | Kendall | 603 S2 | R700 | Q750B |
impedance | 8 ohm | 8 ohm | — | — | — | 8 ohm |
What's in the box
Product guides and documents
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Product information
Product Dimensions | 15.5 x 12 x 39 inches |
---|---|
Item Weight | 32 pounds |
Manufacturer | KEF |
ASIN | B0725VQ5SZ |
Country of Origin | China |
Item model number | Q550 |
Customer Reviews |
4.5 out of 5 stars |
Best Sellers Rank | #197,087 in Electronics (See Top 100 in Electronics) #91 in Floorstanding Speakers |
Is Discontinued By Manufacturer | No |
Date First Available | May 22, 2017 |
Speakers Maximum Output Power | 300 Watts |
Item Weight | 32 Pounds |
Number Of Items | 1 |
Warranty & Support
Feedback
Product Description
The KEF Q550 floor standing speaker is the smallest of the Q 2017 Series floor standing speakers, though size hardly matters. The New Q550 boasts a revamped Unit-Q driver array with a New damped tweeter loading tube designed to smooth out treble frequencies. The Q550 also Features New internal upgrades for its low-frequency drivers, including New surrounds and rear suspension, for immaculate bass no matter the volume. The Q550 greatly benefit from a New closed box midrange cabinet, which helps increase clarity and delivers a cleaner, punchier bass. The floor standing speakers also feature an altered mid-bass driver, which improves midrange clarity and produces a more natural bass roll-off between drivers for a more natural sound. The Q550 is available in sleek matte Black and white vinyl finishes. Grilles for the Q550 are sold separately.
Customer reviews
Customer Reviews, including Product Star Ratings help customers to learn more about the product and decide whether it is the right product for them.
To calculate the overall star rating and percentage breakdown by star, we don’t use a simple average. Instead, our system considers things like how recent a review is and if the reviewer bought the item on Amazon. It also analyzed reviews to verify trustworthiness.
Learn more how customers reviews work on AmazonCustomers say
Customers like the sound quality and quality of the speakers. They mention that they have great sound, and are able to hear lyrics and instruments better than they did before. They say the rear of the speaker has high quality spade/banana plug terminals, and that the speakers are sturdy.
AI-generated from the text of customer reviews
Customers are satisfied with the sound quality of the speakers. They mention that the sound is great, full, and from a beautiful speaker. They also appreciate the difference in quality and sheer volume. Overall, customers are happy with the speakers and recommend them to others.
"...They added some great mid-range bass, but if you do not have a dedicated subwoofer, you may be disappointed...." Read more
"Quality speaker. Sound and look great. Happy with KEF.Purchase was a nightmare. Amazon left me double billed and overdrawn, 5-8 days...." Read more
"Great sound for the value..." Read more
"Great, full sound from a beautiful speaker...." Read more
Customers are satisfied with the quality of the speakers. They mention that the rear of the speaker has high quality spade/banana plug terminals, and that they look and feel sturdy. They also say that the speakers work well in their small living room.
"...- These are top-of-the-line quality. They look and feel sturdy and heavy. I have had them for 1/2 a year now and have no durability issues.-..." Read more
"Works well in my small living room." Read more
"Great, full sound from a beautiful speaker...." Read more
Reviews with images

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Top reviews
Top reviews from the United States
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- These speakers look exactly as advertised. They are sleek and very attractive. They have a nice black matte finish and the UniQ driver array gives theme a space-aged look and feel.
- They do come with the speaker spikes for carpet (which I use).
- WARNING: Read carefully as the price advertised is for only 1 speaker, not 2. I feel that giving a negative review for not paying attention to your purchases is bad practice. I was fully aware that they are advertised as "each" and therefore was not surprised when they arrived as such.
- WARNING 2: The speaker does not come with a speaker grill. This appears to be because Kef is so proud of the look of these speakers, they feel you would not want them covered and therefore sell them separately (and I agree with them). If you have kids or are worried about damaging the cones, you will need to pay for them separately.
Price:
- $420 each - Price paid before taxes. I waited a long while until they went on sale and scored a good deal. They normally go for $600. Kef frequently does large discounts on their entire line (or so it seems), so if you are willing to wait, it is definitely worth it. Compared to the competition, when they are on sale, they are very competitively priced. When they are not on sale, I would say they are about par for the course. There are other brands which would give you more bang for your buck.
Build Quality/Durability:
- These are top-of-the-line quality. They look and feel sturdy and heavy. I have had them for 1/2 a year now and have no durability issues.
- They were very well packaged and had no damage upon arrival.
Performance:
- This is where these speakers shine. I went from a home-theater-in-a-box setup from Insignia that had tiny bookshelf speakers to these two towers and the difference in quality and sheer volume was staggering. When playing stereo content (e.g., music or youtube), spoken dialog is extremely clear and is not overwhelmed by the rest of my setup. I do have a Denon X3400h and used Audessey to properly calibrate the settings, so keep that in mind if you feel that they do not sound up-to-par.
- Because of their size and range, I have been needing to turn my volume down to a lower setting (which is a good thing). For reference, my current room these are in is about 2000 cu ft. If you have 3000 cu ft room or larger, I would consider going for the Q750s or even the Q950s as they have bigger drivers. For 2000 cu ft or less, however, they provide more than enough output.
- For music, they are fantastic. I don't listen to a lot of music, and I am not an audiophile, but to me they make everything sound crisp and clear. I am hearing lyrics and instruments better than I ever did previously.
- For movies & games, they fit perfectly in my 5.1 setup. They added some great mid-range bass, but if you do not have a dedicated subwoofer, you may be disappointed. Low-end bass is lacking, but considering these are their smaller tower speakers, it is understandable. If you are looking for better low-end bass perfomance, I would consider the larger Kef Q750s/Q950s.
Design/Features:
- As I already mentioned, they are very pretty to look at. The UniQ driver is very unique and are the statement piece. The towers somehow stand out, but blend in to the system at the same time. When I put on a movie, I can be engrossed in what I am watching without being distracted by the overly flashy gold or silver cones that other brands have.
- The spikes are very high quality and keep my towers in place. They haven't budged a bit. They needed assembly when they arrived but it was easy enough to do on my own.
- The rear of the speaker has high quality spade/banana plug terminals. They do not feel flimsy at all and made a good connection the first time I set them up.
- If I do opt for the speaker grills some day, they snap on magnetically, which is a big plus. I like that without the grills, I cannot see any holes or pegs where they would normally attach. It keeps them looking clean.
Overall:
I give these speakers 5 stars due to their overall fit and finish, quality, performance, and appearance. They are very sleek, sound fantastic, and will blend seamlessly into any home theater setup you may have.

Reviewed in the United States on September 5, 2020
- These speakers look exactly as advertised. They are sleek and very attractive. They have a nice black matte finish and the UniQ driver array gives theme a space-aged look and feel.
- They do come with the speaker spikes for carpet (which I use).
- WARNING: Read carefully as the price advertised is for only 1 speaker, not 2. I feel that giving a negative review for not paying attention to your purchases is bad practice. I was fully aware that they are advertised as "each" and therefore was not surprised when they arrived as such.
- WARNING 2: The speaker does not come with a speaker grill. This appears to be because Kef is so proud of the look of these speakers, they feel you would not want them covered and therefore sell them separately (and I agree with them). If you have kids or are worried about damaging the cones, you will need to pay for them separately.
Price:
- $420 each - Price paid before taxes. I waited a long while until they went on sale and scored a good deal. They normally go for $600. Kef frequently does large discounts on their entire line (or so it seems), so if you are willing to wait, it is definitely worth it. Compared to the competition, when they are on sale, they are very competitively priced. When they are not on sale, I would say they are about par for the course. There are other brands which would give you more bang for your buck.
Build Quality/Durability:
- These are top-of-the-line quality. They look and feel sturdy and heavy. I have had them for 1/2 a year now and have no durability issues.
- They were very well packaged and had no damage upon arrival.
Performance:
- This is where these speakers shine. I went from a home-theater-in-a-box setup from Insignia that had tiny bookshelf speakers to these two towers and the difference in quality and sheer volume was staggering. When playing stereo content (e.g., music or youtube), spoken dialog is extremely clear and is not overwhelmed by the rest of my setup. I do have a Denon X3400h and used Audessey to properly calibrate the settings, so keep that in mind if you feel that they do not sound up-to-par.
- Because of their size and range, I have been needing to turn my volume down to a lower setting (which is a good thing). For reference, my current room these are in is about 2000 cu ft. If you have 3000 cu ft room or larger, I would consider going for the Q750s or even the Q950s as they have bigger drivers. For 2000 cu ft or less, however, they provide more than enough output.
- For music, they are fantastic. I don't listen to a lot of music, and I am not an audiophile, but to me they make everything sound crisp and clear. I am hearing lyrics and instruments better than I ever did previously.
- For movies & games, they fit perfectly in my 5.1 setup. They added some great mid-range bass, but if you do not have a dedicated subwoofer, you may be disappointed. Low-end bass is lacking, but considering these are their smaller tower speakers, it is understandable. If you are looking for better low-end bass perfomance, I would consider the larger Kef Q750s/Q950s.
Design/Features:
- As I already mentioned, they are very pretty to look at. The UniQ driver is very unique and are the statement piece. The towers somehow stand out, but blend in to the system at the same time. When I put on a movie, I can be engrossed in what I am watching without being distracted by the overly flashy gold or silver cones that other brands have.
- The spikes are very high quality and keep my towers in place. They haven't budged a bit. They needed assembly when they arrived but it was easy enough to do on my own.
- The rear of the speaker has high quality spade/banana plug terminals. They do not feel flimsy at all and made a good connection the first time I set them up.
- If I do opt for the speaker grills some day, they snap on magnetically, which is a big plus. I like that without the grills, I cannot see any holes or pegs where they would normally attach. It keeps them looking clean.
Overall:
I give these speakers 5 stars due to their overall fit and finish, quality, performance, and appearance. They are very sleek, sound fantastic, and will blend seamlessly into any home theater setup you may have.







Also, the stereo separation is amazing. At CD-quality levels and hi-res, the speakers simply disappear and you end up with nothing but music in front of you (as opposed to sound perceived as coming "from" the speakers).
I am a KEF first-time buyer and I am impressed.
I'll definitely add some other KEF speakers in this line as soon as I am ready to build a home theater system.
Purchase was a nightmare. Amazon left me double billed and overdrawn, 5-8 days.
Disappointing and uncaring Amazon support.
Top reviews from other countries



I also experienced the best level of customer service I've ever received. One corner of one of the Q550s was slightly damaged upon arrival, I contacted KEF and had an immediate response (which was after normal business hours), the team there handled everything so swiftly and once the return had been received, a replacement was despatched the same day, for next day delivery, it arrived by 10am. It's so good to know that KEF value the customer experience so much, and understand that a high-end system like this needs to be absolutely pristine, which it is. I am one very happy customer, I can highly recommend KEF. Thank you! :)

A caixa possui qualidade muito boa de agudos e médios, deixando a desejar nos graves, que aliás ficaram bem fracos no Yamaha RX-A1080.
Acabei trocando péla Q750 e consegui atingir o equilíbrio de frequências graves, agudas e médias.
Recomendo apenas se você tiver um bom subwoofer para usar junto.
P.S.: Recebi apenas uma caixa quando comprei direto da Amazon, mesmo anunciadas como par.
