Monitor Audio Silver On-Wall 8G vs KEF R3 Comparison

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Monitor Audio Silver On-Wall 8G

Passive On-wall | 44-35k Hz

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KEF R3

Passive Bookshelf | 52-28k Hz

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Monitor Audio Silver...

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KEF R3

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Monitor Audio Silver...

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KEF R3

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Monitor Audio Silver On-Wall 8G vs KEF R3 Speaker Comparison

In this review, we will be comparing two different types of speakers. Monitor Audio Silver On-Wall 8G is a On-wall speaker whereas the R3 is a Bookshelf speaker.

Let's have a brief look at the main features of Monitor Audio Silver On-Wall 8G and KEF R3 first before getting into our more detailed comparison.

Key Specs	Monitor Audio Silver On-Wall 8G	KEF R3
Brand	Monitor Audio United Kingdom · founded 1972	KEF United Kingdom · founded 1961
Design	2-way	3-way
Uni-Q driver	—	12th Generation Uni-Q
Tweeter	1" gold dome C-CAM	1" Dome
Midrange	—	5"
Woofer	6" C-CAM RST III	6.5" Hybrid aluminum
Frequency response	44-35k Hz	52-28k Hz
Sensitivity	88 dB	87 dB
Impedance	8 ohms	8 ohms
Power range	25-100 watts	15-180 watts
Weight	8.90kg / 19.6lbs	13.55kg / 29.8lbs
Dimensions (H x W x D)	18-5/16" x 11-13/16" x 5-5/16" 465.0 x 300.0 x 135.0mm	16-5/8" x 7-13/16" x 13-1/4" 423.0 x 199.0 x 337.0mm

What size room are the Monitor Audio Silver On-Wall 8G and KEF R3 speakers good for?

The size of the room in which you are planning to use these loudspeakers is an important decision factor. Here we have compared their suitability to various sizes of environments considering their size and max power parameters:

Listening Environment*	Monitor Audio Silver On-Wall 8G	KEF R3
Near-field	Average	Poor
Small Room	Good	Average
Mid-size Room	Average	Good
Large Room	Poor	Average
Very Large Room	Bad	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.)

The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.

Drivers

One of the fundamental differences between these two speakers is that Silver On-Wall 8G is a 2-way design whereas the R3 is a 3-way speaker. 3-way designs utilize a midrange driver in addition to the tweeter and woofer on 2-way designs. Designing a crossover for a 3-way speaker is a complicated process and generally increases the overall cost of the speaker.

Monitor Audio Silver On-Wall 8G

KEF R3

TweeterMidrangeWoofer

Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.

Driver	Monitor Audio Silver On-Wall 8G	KEF R3
Driver Setup	2-way	3-way
Tweeter	1-inch	1-inch
Midrange	-	1 x 5-inch
Woofer	1 x 6-inch	1 x 6.5-inch

Silver On-Wall 8G features a 1" gold dome C-CAM Tweeter and 1 x 6" C-CAM RST III Woofer with a Crossover frequency at 2900Hz. On the other hand, the R3 features a 1" aluminum Dome Tweeter, a 5" Midrange and 1 x 6.5" Hybrid aluminum Woofer with a Crossover frequency at 400Hz and 2900Hz.

Frequency Response

Silver On-Wall 8G has a frequency range of 44-35k Hz whereas R3 has a frequency range of 52-28k Hz. With a minimum frequency of 44Hz, the Silver On-Wall 8G can go significantly deeper on the low side and provide stronger bass compared to the R3's min frequency of 52Hz.

The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the On-wall class in our database.

Low Frequency

On-wall Speakers

Silver On-Wall 8G

Min

Average

Median

Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.

Impedance and Sensitivity

Silver On-Wall 8G and R3 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Silver On-Wall 8G sensitivity is rated at 88 dB and the R3's is at 87 dB. This 1 dB difference makes the Monitor Audio Silver On-Wall 8G a more sensitive speaker compared to KEF R3, hence will play louder with the same amount of watts.

Sensitivity

On-wall Speakers

Silver On-Wall 8G

Min

Average

Median

Power Range

Power range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.

R3 can handle a max power of 180 watts RMS, whereas Silver On-Wall 8G has a max power handling value of 100 watts RMS, 80 watts less than the R3.

Note that higher power handling does not make a speaker louder: that depends mainly on sensitivity and impedance. The calculator below shows how loud each of these actually plays on a real amplifier.

Which plays louder on your amplifier?

Starting with a popular amplifier - change it to the one you own, or any you are considering, and watch both numbers move.

Amplifier - change this

Distance

Playing as

Monitor Audio Silver On-Wall 8G

KEF R3

Input Type and Bi-Amping / Bi-Wiring

Both Silver On-Wall 8G and R3 features dual binding post speaker terminals for bi-amping or bi-wiring.

KEF R3 Port

Physical Specs

The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare Monitor Audio Silver On-Wall 8G's and KEF R3's external dimensions. Monitor Audio Silver On-Wall 8G has external dimensions of 465.0 x 300.0 x 135.0mm (18-5/16 x 11-13/16 x 5-5/16inch) whereas KEF R3 has external dimensions of 423.0 x 199.0 x 337.0mm (16-5/8 x 7-13/16 x 13-1/4inch).

KEF R3 is 101mm narrower and 42mm shorter than Monitor Audio Silver On-Wall 8G but it is also 202mm deeper.

Size, drawn to scale

Both speakers and both views share one scale, so everything here is directly comparable. Hover a box for its dimensions.

One scale for both, standing on the same surface and pushed back to the same wall, so the deeper one visibly sticks out further.

KEF R3 needs about 66% more floor or shelf area. KEF R3 is 202mm deeper, so it stands that much further out from the wall. Monitor Audio Silver On-Wall 8G is 42mm taller.

Base Surface Area Comparison
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited. The base surface area of the Monitor Audio Silver On-Wall 8G is approximately 405.0cm² / 62.8inch² and base area of the KEF R3 is approximately 670.6cm² / 103.9inch². The Silver On-Wall 8G requires 40% less surface area than the R3 which gives it a small advantage on placement in tight spaces.

What's in the Box of KEF R3?

Here are the items that come with the R3:

2 Bookshelf loudspeakers
2 Grilles
2 Foam port plugs
8 Self-adhesive rubber feet
User Manual
Warranty Information

Reasons to choose Monitor Audio Silver On-Wall 8G over KEF R3

Sensitivity	88 dB vs 87 dB	Play louder with same amount of amplification power
Minimum Impedance	5.5 ohms vs 3.2 ohms	Very low impedance levels puts more pressure on amplifier
Low Frequency Response	44 Hz vs 52 Hz	Generates deeper bass
High Frequency Response	35k Hz vs 28k Hz	Generates higher frequency
Base Surface Area	405cm² vs 670cm²	Takes less floor space
Price per pair*	650USD vs 2200USD	costs less (*prices may change depending on the seller, location and time)

Reasons to choose KEF R3 over Monitor Audio Silver On-Wall 8G

Max Input Power	180 watts vs 100 watts	Handle more power from your amplifier
Driver Setup	3-way vs 2-way	Have a dedicated mid-range driver
Woofer Size	6.5 inches vs 6 inches	Larger woofer
Height	423mm vs 465mm	Easier to fit in smaller spaces

Monitor Audio Silver On-Wall 8G vs KEF R3 Specs Table

Detailed comparison of specifications

General	Monitor Audio Silver On-Wall 8G	KEF R3
Brand	Monitor Audio	KEF
Speaker Type	On-Wall speakers	Bookshelf speakers
Power Range	25-100 watts	15-180 watts
Sensitivity	88 dB	87 dB
Impedance	8 ohms	8 ohms
Impedance	5.5 ohms	3.2 ohms
Frequency Response	44-35k Hz	52-28k Hz
Drivers
Woofer Quantity	1	1
Woofer Size	6"	6.5"
Woofer Composition	C-CAM RST III	Hybrid aluminum
Woofer Surround Material	n/a	Rubber
Tweeter Size	1"	1"
Tweeter Type	gold dome C-CAM	Dome
Aimable Tweeter	No	No
Midrange Driver	No	5"
Crossover Frequency	2900Hz	400Hz and 2900Hz
Firing Direction	n/a	rear
Physical Specs
Height	465.0mm (18.3")	423.0mm (16.7")
Width	300.0mm (11.8")	199.0mm (7.8")
Depth	135.0mm (5.3")	337.0mm (13.3")
Weight	8.90kg (19.6lbs)	13.55kg (29.8lbs)
Enclosure	Bass Reflex	Bass Reflex
Finish	MDF/High gloss, veneer or satin paint	MDF/Lacquer
Available Colors	High Gloss Black, European Walnut, Satin White	Black Gloss, White Gloss, Walnut
Mounting Bracket		No
Grille	Yes	Yes
Moisture Resistancy	No	No
Connections
Biamp Inputs	Yes	Yes
Other
Parts Warranty	5 Years	5 Years
Labor Warranty	5 Years	5 Years

Verdict

An on-wall against a bookshelf. They are built for different places in a room, so start with where these have to go rather than which looks better on paper.

Area	Better	Why
Bass	A	Monitor Audio Silver On-Wall 8G digs deeper - 44Hz against 52Hz. A subwoofer would even that out.
Amplifier needs	evenly matched	Similar sensitivity (88dB vs 87dB) - both want much the same power.
Headroom	B	KEF R3 takes more power (180W vs 100W) - more in hand in a big room.
Size	depends	Monitor Audio Silver On-Wall 8G is easier to place; KEF R3 is bigger, which usually goes with fuller bass. Your room decides.
Type	depends	A Passive On-wall against a Passive Bookshelf - a different job rather than a better one.
Expandability	depends	Monitor Audio Silver On-Wall 8G: bi-amping; KEF R3: bi-amping.
Price	A	Monitor Audio Silver On-Wall 8G is cheaper - $650 against $2,200, about 70% less; arguably a different class.

A Monitor Audio Silver On-Wall 8G B KEF R3
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.

Which should you choose?

Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 52Hz anyway, so judge these on the other rows instead. Match it to your room: we rate Monitor Audio Silver On-Wall 8G the better fit for near-field listening and a small room, and KEF R3 for a mid-size room and a large room.

And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.