Svs Ultra Bookshelf vs Kef R300: review and complete comparison

Bookshelf speakers are best for delivering loud and strong stereo. These are also very compact and could be placed anywhere. Among various audiophile speakers, bookshelf speakers stand out to be one of the favorites. And to help you choose we are going to compare two bookshelf speakers Svs Ultra Bookshelf vs Kef R300.

In this article, we will be distinguishing among two amazing bookshelf speakers. These speakers are unique in their own way. And for those who love booming music coming out of their speakers will love either one of these. However, there are differences between these two speakers and often these speakers are compared with one another.

Svs Ultra Bookshelf Speaker vs Kef R300 Speaker, and which one is the best among these two. Svs Ultra Bookshelf Speakers are the speakers with uncommon design and it delivers an easy full-go sound and an excellent soundstage. On the other hand, Kef R300 is a combination of style and extraordinary performance. This article will guide you to choose your desirable bookshelf speaker or maybe clear your confusion.

Kef R300: Extraordinary and Precise

Kef R300 is a part of Kef’s R-series which comprises small bookshelf speakers. You could listen to Kef r300 all day long for its brilliant sound delivery. It’s a three-way bookshelf speaker. The quality of sound this Kef r300 produces is worth every penny you spend after it. The audiophiles love these speakers for their rich sound and chic design.

Svs Ultra Bookshelf: Great Design and Perfect Delivery

Svs Ultra bookshelf is a 2-way speaker with detailed sound delivery features. Svs Ultra bookshelf speakers are a perfect blend of powerful technology and great manufacturing. This speaker is also an audiophile-grade speaker. It provides a deep soundstage that audiophiles appreciate along with the rich booming sound.

Let’s do a quick comparison between these two speakers to know the details.

Comparison Chart:

Specifications Svs Ultra Bookshelf Kef R300
Crossover Channel Quantity 2-way 3-way
Enclosure Bass Reflex Bass Reflex
Tweeter type Hard-Dome Dome
Tweeter size 1-inch 1-inch
Woofers Type Composite Glass- Fibre Aluminum
Woofers Size 6.5-inch 6.5-inch
Frequency Response 42Hz-32kHz 42Hz-45kHz
Recommended Amplifier Power 20W 25W
Sensitivity 87dB 88dB
Crossover Frequency 2000Hz 2800Hz, 500Hz
Colour Piano Gloss Pair White Gloss
Speaker type Monitor Speaker Speaker
Connector Type 5-way post Post
Total Harmonic Distortion <0.4%
Connectivity Technology Non-wired Wired
Power Range 20-150W 25-120W
Dimension 10.9”x8.5”x15” 24”x18”x18”
Weight 19 pounds 22pounds
Price Check Price on Amazon Check Price on Amazon

Drive Material:

In producing quality sound drive material plays a very crucial role. Both speakers have the same bass reflex enclosure. However, the tweeter of Svs Ultra bookshelf speakers is 1-inch hard-dome. But the tweeters of Kef R300 in 1-inch dome.

The woofers of these speakers are 6.5 inches but the main difference is in its material. The woofers of Svs ultra are composite glass fiber material but the woofers of Kef r300 are made out of aluminum.

Kef r300 bookshelf speakers feature 5-inch Uni-Q drivers’ array with low-frequency 6.5-inch woofers, which are designed to eliminated all sorts of unwanted frequencies and ups and downs. Also, it has three-way crossover channels with a crossover frequency of 2800Hz,500Hz.

The Uni-Q array offers a pure mid-range response. The Z-flex surrounds technology along with a braced alloy cone helps the sound to project properly into your listening space. This setup ensures to deliver you polished, profound, and airy bass output with dazzling dynamics.

Svs ultra-bookshelf speakers have a 2-way crossover channel. The precise tuning of the crossovers creates accurate frequency response and precise soundstage. These bookshelf speakers with its 2000 Hz crossover frequency are well established to deliver the perfect amount of bass.

The 6.5-inch mid-bass drivers promote composite glass fiber woofers that provide excellent stiffness and enhances the sensitivity of the sound coming out of the speakers. These drivers deliver sound with accurate tonal balance.

The effortless authority and dynamics of the drivers make it unique. These speakers provide a strong soundstage with on- and off-axis frequency for you to enjoy your movie, music, or games to the fullest.


The speakers we are talking about in this article has quite a tasteful design. Both speakers are beautiful in their own way.

Every minute design on the Svs ultra-bookshelf is made while keeping a sonic purpose in mind. The tapered edges in the front baffle of the cabinet, known as the chamfers cutdown the edge diffraction for precise and neat sound staging.

Kef r300 comes in a black and white gloss finish, you can also get walnut or rosewood veneers for a traditional look. These speakers are sleek and gorgeous. The geometric configuration inside the speakers tells a different story. It optimizes the speaker’s vibrational behavior.


Sensitivity in speakers refers to a measure of how loudly the speaker will give the output to a certain electric input level. This feature converts power into actual acoustics.

An average range of sensitivity a speaker requires is around 87dB-88dB. Both the speakers that we are talking about meet the threshold of being a normal speaker. Svs ultra-bookshelf speaker having 87dB sensitivity and Kef r300 having 88dB just meets the requirements.

Frequency Response:

The audible range for the frequency response of speakers is 20Hz-20kHz. It’s the basic parameter. But if the frequency response is more than that the speakers tend to deliver much more quality in sound.

Sound quality is better with enhanced frequency response, which in the case of Svs ultra and Kef r300 we can see. The frequency response that Svs ultra-bookshelf speaker provides 42Hz-32kHz and Kef provide 42hz-45kHz.

Audiophile-grade speakers:

Svs ultra-bookshelf speakers and Kef R300 both these speakers have audiophile-grade quality. Kef r300 can be placed anywhere e.g. Countertop, desktop, stands, bookshelf, etc and it will give you an experience worth every penny you bought it with.

Kef r300 has the potential of getting the audiophiles up on their feet and notice it, with its innovative design and amazing sound delivery. Svs bookshelf speakers claim it to be one of the finest audiophile speakers.

The convincing audio delivery of these speakers will leave the audiophiles spellbound. Be it the warm and charming sound of vinyl or the multi-layered dynamics of movies or games it stands out in every situation.

Svs Ultra bookshelf speakers and Kef r300 are very different from each other. But there are some factors that these bookshelf speakers match with. Let’s have a look at those features that are similar.


Svs Ultra Bookshelf Kef R300
Bookshelf Speaker Bookshelf Speaker
Nominal Impedance- 8ohm Nominal Impedance- 8ohm
Passive Amplification Passive Amplification
Detachable Grills-Yes Detachable Grills- Yes
Rubber Woofer Surround Rubber Woofer Surround


Svs ultra bookshelf speakers might need an additional amplifier to enhance its sound quality. These speakers don’t necessarily have huge power requirements, nevertheless, the quality of the sound won’t simply enhance because you connected them to AV. The recommended power for a better experience is 20W.

Kef R300 also requires an additional amplifier to enhance its sound quality. But these also work fine without amplifiers. But there’s always an option for improvement. The recommended amplifier power for that would be 25W.

Where do I place my speakers?

Speaker placement plays a crucial role when it comes to quality sound delivery. Sometimes, to hit the right spot on your mind you just need to place the speakers correctly or I would say technically.

Svs Ultra Bookshelf Speakers:

These speakers have very promising soundstage. However, if you place these towards the walls of your room it wouldn’t give you the full effort. Although if you place the speakers slightly bending towards your listening position everything will just go right for you. The sound will snap into place and give you a premium experience. The imaging of the speaker i.e. the depth of the image is very necessary.

If the placement is perfect, you’ll feel like you’ve gone live to whatever you’re watching, it’s almost like the sound is coming from your behind. Apart from that, the speaker has 5-way binding ports behind it along with an amp configuration.

The detachable grills provide excellent rigidity and reduce diffraction. Svs ultra-bookshelf speakers can be placed on a stand, bookshelf, tabletop but it doesn’t come with any bracket or wires to mount it to the wall. Placing the speakers to the boundaries of the room or corners will escalate the bass response.

Kef R300 Bookshelf Speaker:

Kef R300 bookshelf speakers are loud and clear. Kef recommends placing the speakers one meter apart from the sidewalls and six to ten feet gap between the speakers.  Because of the Uni-Q unit, the treble dispersion works amazingly.

The speakers are best to be installed parallel to the room. You can also tilt the speakers to your listening position but experts have recommended not tilting it more than five degrees.

The sound quality might get shaky if you tilt the speakers quite excess. The mid-range bass is quite powerful and deep and doesn’t need a subwoofer. Kef r300 can simply be placed on a bookshelf, stand, table, or any other flat surface. The all-over performance of Kef r300 is balanced and neat.

Now, Let’s discuss some Pros and Cons,

Svs Ultra Bookshelf Speakers:


  • These are one of the best bookshelf speakers in the market in terms of both quality and construction.
  • It provides deep and dynamic bass with an amplifier connected to it.
  • These speakers are built to last for a long time. Its durability is worth praise.
  • The speakers are audiophile friendly.


  • Additional amplifiers are needed for deeper bass.
  • It’s expensive.

Kef R300 Bookshelf Speakers:


  • Neodynamic magnetic mask.
  • Uni-Q technology
  • Mid-range Z-flex surround
  • Gives you the option to choose between single amplifiers as your source or double amplifiers.
  • Chic design and balanced acoustics


  • Slightly lacks in low-end.
  • Bass could be better integrated
  • Expensive

Select which one is suitable for you KEF ls50 or ls50w?

Overall Performance:

Svs Ultra Speakers are considered to be the best sound system in the bookshelf speaker category. It meets the audiophile demands as well as the regular ones. The ultrasonic drivers are a part of Svs Ultra’s high-quality design.

The imaging of the ultra-speakers is amazing which is featured by a powerful monitor. And the well-organized and deep soundstage of these speakers are everything. The wedge-shaped baffle gives an outstanding level of on-axis frequency.

But for being an audiophile speaker completely these speakers need to be connected with a powerful amplifier. The speaker is composed of high-quality material, hence provides high-quality performance.

The FEA-optimized diffuser of tweeter ensures the airy presentation of vocals makes the acoustics light, rigid, and efficient at the same time build up a convincing soundstage. The driver and crossover to every minute build design everything is put together to achieve reference audio quality of the speaker.

Kef R300 Speakers are three-way, bookshelf speakers which are a rare event. These compact speakers can easily replace your home theatre system. The high-tech woofers with an eye-catching design deliver punchy musical bass to your music.

Uni-Q technology is the most talked about. Because this technology fills the room with sweet melodies and hits the sweet spot of music. The natural and detailed sound along with coming from these speakers will leave you with great satisfaction. Also, it’s a great fit for audiophiles. As a bookshelf speaker, Kef r300 has a lot to offer.

Final Verdict:

We have discussed speakers which are great for being a bookshelf speaker. It can be said that these are on the top tier of the bookshelf speaker pyramid if there is any. Svs Ultra speakers are less expensive than Kef r300.

But if we look at the specifications Kef r300 has much to offer than Svs Ultra speakers. Of course, these speakers have differences but in their price range they have absolutely stood out.

If you are an audiophile either one these must be on your list already. Even if you are not an audiophile, who else is not a fan of premium sound? A quality sound system is more than halfway to an extraordinary musical experience.

As a bookshelf speaker, Svs ultra and Kef r300 has a lot of potentials. If you are a movie buff or gamer or you have quirky taste in music one of these is your catch. And I would suggest you not be hesitant to buy either of these speakers for their price range.

The price range is high because these are high-end quality speakers. These promise you to give the best acoustics as well as long durability. And I can assure you that the speakers would be worth every penny you buy it for. This article will meet up your query without even asking for it and guide you to the speaker of your choice.

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