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KEF R300

Bookshelf speakers

10 Reviews

Item # 991R300GB

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Our take on the KEF R300

KEF's R300 is the type of bookshelf speaker I could listen to all day. I recently got a chance to check out a pair in Crutchfield's demo lab. We set them up along with a pair of less expensive (but still excellent) KEF Q350s and drove both pairs with an Integra DTM-7 stereo receiver.

Lovely, lively, and refined

KEF's R300 is the type of bookshelf speaker I could listen to all day. I recently got a chance to check out a pair in Crutchfield's demo lab. We set them up along with a pair of less expensive (but still excellent) KEF Q350s and drove both pairs with an Integra DTM-7 stereo receiver.

Both sets of speakers sounded natural and detailed in a non-fatiguing way. But I felt that the R300s stood out nicely on tracks with punchy drums and bass, where they had a chance to open up more during dynamic peaks in the music. Higher-frequency sounds like cymbals were clearer and more defined than with the Q350s. (The beautiful high-gloss piano black finish is a nice step-up, too.)

A room-filling "sweet spot," thanks to Uni-Q® technology

KEF's patented Uni-Q technology places each speaker's 1" tweeter in the acoustic center of a 5" midrange driver. This concentric array allows sounds to originate from a single point source, making the "sweet spot" (the ideal listening position) much larger.

A high-tech woofer for punchy bass

Each speaker also contains a 6-1/2" aluminum woofer with a cool-looking flat design and silver trim ring that caught my eye. Massive magnet structures and large aluminum voice coils help these woofers kick out tight, musical bass.

Good stands are highly recommended

Just as with any bookshelf speakers, you'll do yourself a favor if you place the R300s on a nice, solid set of speaker stands, which help minimize vibrations that can color the sound. And because these particular speakers are rear-ported, they'll sound better if you can place them with a little extra space between them and the wall behind them.

Product Highlights:

  • 3-way design
  • 1" vented aluminum dome tweeter with waveguide
  • 5" magnesium/aluminum midrange driver
    • the tweeter and midrange use KEF's Uni-Q technology, which places the tweeter in the center of the midrange driver
    • this specialized positioning creates a large listening "sweet spot" in your room
  • 6-1/2" aluminum woofer
  • frequency response: 50-28,000 Hz (±3 dB)
  • sensitivity: 88 dB
  • impedance: 8 ohms
  • recommended amplifier power: 25-120 watts
  • bass-reflex cabinet with CFD (Computational Fluid Dynamics) rear-firing ports for accurate, musical bass
  • nickel-plated binding posts accept pins, banana connectors, or bare wire
  • two sets of input terminals allow bi-amping or bi-wiring
  • high-gloss piano black finish
  • detachable magnetic cloth grilles
  • 8-5/16"W x 15-1/4"H x 13-5/8"D
  • weight: 26.4 lbs. each
  • warranty: 5 years
  • Our 60-day money-back guarantee

What's in the Box:

  • 2 Bookshelf loudspeakers
  • 2 Grilles
  • 8 Self-adhesive rubber feet
  • 2 Foam port plugs
  • Installation Manual
  • Warranty Registration Card

KEF R300 Reviews

Average Customer Review(s):

(10 Reviews)

KEF R300

Crutchfield customer from Baltimore, MD on 1/9/2019

Crutchfield Customer Review (What's this?)

Just made a major upgrade to these from my Elac Debut B6 and they are AMAZING! I was considering the ls50's but ultimately went with these because I thought they had a little better bass.



Blown Away, if set up right

Guest from Raleigh, NC on 12/31/2018

Outstanding Speakers. I ordered these to use as my front left and right along with my new KEF R2c with LS50 surrounds. I thought I might regret not getting the towers but WOW are these good. Takes some serious break in time for them to really open up and lose the metallic sound. Now they are sweet, detailed and the bass is unbelievable. We had to double check to make sure our subwoofer wasn't plugged in! One side note: I had them bi-amped with my Marantz 7012 and they sounded fantastic. I just tried them without bi-amping and a huge difference. So clearly they need 140-200 watts to blow you away with the sound. With just the marantz powering them in two channel mode single amped, they sound good but lose the amazing sound stage that they created with more power. I will be adding a new amp soon to deal with that. The midrange is not forward but extremely detailed and "fast". Can't beat the sale. I prefer these grills to the new R series grills I have on the other speakers. Much more discreet for home theater.

Pros: Unbelievable Midrange and Bass, subtle yet pin point accurate Treble

Cons: Not a con just a note: These power ratings are extremely conservative as they love more power. Sound okay with about 125wpc, but with closer to 200 they sound fantastic.

Great Sound at A Great Price

Ian from Philadelphia, PA on 12/16/2018

Crutchfield Customer Review (What's this?)

These are the first speakers I have purchased and they are extremely good, especially for the price. I never heard these exact speakers before purchasing, I only heard the newer KEF speakers at a best buy store, the R3 series. That put KEF on my radar when looking for speakers and I am completely satisfied with my speakers. I previously had JBL tower speakers (from the mid 80s) and these are a huge improvement. Everything sounds like it has more clarity. While these speakers do have a pretty good bass I am still going to end up getting a subwoofer (most likely the KEF Kube 10b). I knew going in that I would probably need to get a subwoofer so I am ok with that. I am most likely not going to get a center with these speakers as I don't think I need one as these speakers are extremely good, although I never had a center so could be missing something. While these speakers are rated to go down to 3.2 ohms my receiver has had no problem with them so far. I have an ONKYO receiver that is only rated at 6 ohms (my receiver is also at least 10 years old (pre-hdmi) and powers these speakers fine).

Pros: Extremely good sounding at really high volumes and really low volumes Full clarity for everything, and no center is likely needed with these speakers

Cons: They are probably going to be completely phased out soon as black is the only option on crutchfield

KEF R300

Crutchfield customer from Irving, TX on 11/18/2018

Crutchfield Customer Review (What's this?)

I really like the clarity of the KEF speakers and I am happy with the deal I got from Crutchfield. I wish all of the retail people I deal with had the enthusiasm of Crutchfield employees. Thanks for everything.



KEF R300

Crutchfield customer from Mckinney, TX on 11/18/2018

Crutchfield Customer Review (What's this?)

Very glad I pulled the trigger and bought these. KEF has big speaker sound coming out of a small speaker. Coupled with the Peachtree Audio Nova 150, which is a great integrated amp. Using in my living room and kitchen area that is 24' x 50'.

Pros: Great soundstage out of a small speaker that blends into the room

Cons: None

KEF R300

Shawn from Jackson, MI on 11/15/2018

Crutchfield Customer Review (What's this?)

Great speaker no regrets!!!!

Pros: One of the best sounding bookshelf i have heard!!!

Cons: None


BOB from Odessa, TX on 11/14/2018

Crutchfield Customer Review (What's this?)




KEF R300

Gerald from Erie, PA on 11/10/2018

Crutchfield Customer Review (What's this?)

I've suffered high frequency hearing loss and got rid of a pair of Magnepans and a pair of Harbeths due to no longer being able to fully appreciate their performance capabilities. Due to my hearing limitation I was only hearing very muddied sound. During my search for inexpensive replacements, I only experienced a lot more of the same until stumbling across the KEF R300. I have no explanation but for whatever reason, these speakers bring back enough of the fidelity that I was used to hearing, to the point that I don't mind listening to them. I no longer get listening fatigue and the accompanying frustration when listening to the KEF R300. I plan on living with these for a long time. I can't imagine how good they must sound to someone unlike myself, with no high frequency hearing loss. Highly recommended!

Pros: Small but covers the full musical spectrum

Cons: No Issues to report

KEF R300

jake from Syracuse, NY on 10/31/2018

I purchased a pair of these from crutchfield a little over 2 months ago. Absolutely love these speakers and well worth the money spent to get them. I put them up against my klipsch RP 160m, 150m speakers, old but rebuild Marantz imperial 7, ELAC unifi, debut 2.0, and a pair of JBL's. Across the board these speakers are better. Imaging, spacing, bass response, depth, and clarity are great. I have these hooked up to a Yamaha 2070 with Rocket 33 bi wire cables for my speaker wire. Mainly these speakers are used for my vinyl collection and late night listening. With this combination even untra low volumes sound amazing. Couldn't ask for anything more.

Pros: Beautiful musical speakers

Cons: Brushed aluminum ring around the drivers look a little too modern for my setup and home. I removed the trim rings and painted them a satin black. They began to do this to the new R3 and give the speaker a more laid back look but can definitely still catch your eye. More a personal preference

KEF R300

Crutchfield customer from CLT, NC on 8/27/2018

Crutchfield Customer Review (What's this?)

Very nice speakers, superb finish and build quality. Very spacious sound field. Still in break-in period, using as a 4.1 setup.




Hands-on research

Product Research


3-Way Bookshelf Speaker: Featuring an all-new Uni-Q driver array and 6.5" low-frequency bass driver, the 3-way KEF R300 bookshelf loudspeaker delivers clarity and realism with flawless precision and superb dynamics. Its stylishly, uncluttered appearance beautifully complements its startling clear highs, fast and clean midrange response, and accurate low-end frequencies.

All New Uni-Q Driver Array: The R300 bookshelf loudspeaker features KEF's all new Uni-Q driver array with a 1" aluminum dome tweeter mounted in the acoustic center of a 5" magnesium/aluminum midrange driver. With both the tweeter and midrange driver operating as a single-point-source, you'll hear detailed, accurate three-dimensional sound, which is dispersed more evenly throughout your room.

  • 1" Aluminum Dome Tweeter: At the center of the Uni-Q driver array is a 1" aluminum dome tweeter with KEF's tangerine waveguide to help disperse the higher frequencies evenly across a wider angle and flood the room with a natural soundfield. The tweeter's large neodymium magnet and a computer-optimized dome structure deliver articulate high frequencies with flawless precision. In addition venting the tweeter reduces pressure behind the dome, increasing midrange bandwidth and lowering distortion.
  • 5" Magnesium/Aluminum Midrange Driver: Surrounding the 1" aluminum dome tweeter is a 5" magnesium/aluminum midrange driver. The R300's midrange response is amazingly fast and clean, thanks to the braced magnesium/aluminum alloy cone, KEF's Z-flex surround smoothing the transition to the front-panel, and a sturdy die-cast aluminum chassis that prevents resonance from being transferred to the cabinet. In addition, large voice coils increase the driver's power handling and dynamics, reducing distortion and delivering exceptional vocal clarity.

6.5" Bass Driver: In addition to the a Uni-Q driver array, the R300 bookshelf loudspeaker also features an all-new 6.5" bass driver for lower frequencies. The combination of a massive vented magnet assembly and a large, lightweight aluminum voice coil driving a light, stiff and strong hybrid aluminum cone assures clean, deep and uncompressed bass output with superb dynamics and power handling, plus fast and clean midrange response.

Computer Designed Crossover: The KEF R300 bookshelf loudspeaker utilizes computer-designed crossovers (500Hz, 2.8kHz) that allow the level of each driver to be fine-tuned for a smoother, flatter response.

Computational Fluid Dynamics (CFD) Port Design: Featuring a Computational Fluid Dynamics (CFD) port design, the geometry of the bass reflex port has been tuned to minimize turbulence at high levels, reducing noise and low frequency compression. The port is located on the rear of the speaker cabinet.

Note: Foam port plugs are included to insert into the rear-firing ports, if the bass is to "boomy" due to room placement.

Non-Resonant Cabinet: The R Series speaker cabinet employs constrained layer damping between the bracing and the enclosure walls and also the front-baffle, to prevent the cabinet from vibrating and radiating sound. The result is a non-resonant cabinet with no coloration. An acoustic transparent grille is also included which magnetically attaches to the front of the speaker cabinet.

Dual Binding Posts: On the rear of the speaker cabinet are dual sets of heavy-duty, nickel-plated binding post terminals that will accept bare wire (up to 10AWG), pin-connectors, spade-lugs, and banana plugs (single only). Plastic inserts must be removed from the binding posts to use banana plugs. Using the dual sets of binding posts, you can bi-wire or bi-amp the speaker.

  • Bi-Wiring: Bi-wiring can provide noticeable improvements in the overall transparency of your loudspeakers. Run separate speaker wires to the low & high/mid frequency drivers from a single amplifier (the upper set of binding posts are for the high frequency drivers; the lower set of binding posts are for the low frequency drivers).
  • Bi-Amping: Bi-amping allows you to use separate amplifiers for the high/mid & low frequency sections of your loudspeaker for greater dynamic range & lower distortion. We recommend that your separate amplifiers have identical gain to preserve the speaker's voicing balance.
Note: Unlike many other speakers with dual binding posts, the R Series loudspeaker does not use jumper straps or leads between the high frequency and low frequency terminals. Instead there are two dials (labeled "Link") for the positive and negative high and low frequency terminals which can be adjusted to either connect the high and low frequency terminals together to power the speaker off a single amplifier channel (default setting) or disconnect the high and low frequency terminals from one another in order to bi-amp the high and low frequency drivers separately.

Mounting & Placement Options: The bookshelf speaker can simply be placed on a stand, table-top, shelf, or other flat-surface. The included self-adhesive rubber feet protect your furniture and add approximately 0.1875" to the overall height of the speaker. A pair of speakers should be positioned 6' to 10' apart and placed between 18" to 24" off the floor. They should be positioned at least 9" from the back wall due to their rear-firing port and 39" from side walls. The speakers can be "toed-in" or angled inward toward the main listening area to improve stereo imaging and soundstage.

Note: There are no included brackets, keyhole slots, or threaded inserts to accommodate wall mounting.

R Series: The R Series features many of KEF's latest innovations in premium hi-fi and home theatre loudspeaker technology. Stunningly fluent Uni-Q driver arrays combine with potent new bass drivers and many ingenious refinements to create a rich, spacious, accurate sound. The R Series consists of a three floorstanding speakers (R500/R700/R900), two bookshelf speakers (R100/R300), two center speakers (R200c/R600c), and two surround speakers (R50 Dolby Atmos/R800ds Dipole) - all sold separately.

Optional Powered Subwoofer: A KEF Kube series powered subwoofer (sold separately) is the perfect addition to the Q Series loudspeakers.

Our Product Research Team

At Crutchfield, you'll get detailed, accurate information that's hard to find elsewhere. That's because we have our own in-house Product Research team. They verify what’s in the box, check the owner's manual, and record dimensions, features and specs. We stay on top of new products and technologies to help people make informed choices.

Q & A

Customer Q&A

Crutchfield asked  
Why did you buy this?

I have reference 201s from KEF and I have found it to be a superior product. [ Bruce  Feb 16, 2019 ]
advisor's advise sealed the deal - replacing 15 year old Pinnacle Gold Series and was told would be the best option since i am looking for a smaller speaker after my wife made me get rid of the "big eye sores"!! [ Shahrokh  Dec 19, 2018 ]
I was going to buy the LS50s, but I was a little hesitant as they don't have the bass extension I was looking for. This sale on the R300 allowed me to move up to the three-way design I wanted. Thanks for having great prices! [ Pat  Dec 14, 2018 ]
Good speakers at a great price [ Ian  Dec 12, 2018 ]
I have Q series speakers and hope that R series ones are even better. Will see. [ EDUARD  Sep 11, 2018 ]
Previous KEF owner. Love the brand, sound and build quality of KEF [ Daniel  Aug 16, 2018 ]