In this review, we will be comparing two different type of speakers . MoFi SourcePoint 888 is a Bookshelf speaker whereas the R11 Meta is a Floor-standing speaker.
Let's have a brief look at the main features
of MoFi SourcePoint 888 and KEF R11 Meta first before getting into our more
detailed comparison.
MoFi SourcePoint 888 Key Specs
- 3-way Design
- 1.25" wide roll soft dome Tweeter
- 8" Midrange
- 2 x 8" Paper-pulp Woofer
- 32-30k Hz Frequency Response
- 87dB Sensitivity
- Impedance: 6ohms
- Power Range:Up to 200watts
- Weight:43.00kg
- Dimensions (H x W x D): 1070.0" x 12.6" x 16.1"( 1070 x 320 x 410mm )
KEF R11 Meta Key Specs
- 3-way Design
- 12th Generation Uni-Q Driver
- 1" Vented dome Tweeter
- 5" Midrange
- 4 x 6.5" Hybrid Aluminum Woofer
- 5" Midrange
- 46-28 Hz Frequency Response
- 90 dB Sensitivity
- Impedance: 4ohms
- Power Range:15-300watts
- Weight:36.59kg
- Dimensions (H x W x D): 1296.0" x 12-1/4" x 15-1/8"( 1296.0 x 312.0 x 385.0mm )
What size room are the MoFi SourcePoint 888 and KEF R11 Meta 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* |
MoFi SourcePoint 888 |
KEF R11 Meta |
| Near-field |
Poor |
Are you nuts? |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Good |
Average |
| Large Room |
Good |
Good |
| Very Large Room |
Average |
Good |
(* 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.)
In the following sections, we will get into more detail in order to better understand how the MoFi SourcePoint 888 and KEF R11 Meta compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
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Drivers
Both SourcePoint 888 and R11 Meta are 3-way speakers.
| Driver |
MoFi SourcePoint 888 |
KEF R11 Meta |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1.25-inch
|
1-inch
|
|
Midrange
|
1 x 8-inch |
1 x 5-inch |
|
Woofer
|
2 x 8-inch
|
4 x 6.5-inch
|
SourcePoint 888 features a 1.25" wide roll soft dome Tweeter , a 8" Midrange and 2 x 8" Paper-pulp Woofer with a Crossover frequency at 130Hz and 1.6kHz . On the other hand, the R11 Meta features a 1" Aluminum with MAT absorber Vented dome Tweeter , a 5" Midrange and 4 x 6.5" Hybrid Aluminum Woofer with a Crossover frequency at 330Hz and 2500Hz.
Frequency Response
SourcePoint 888 has a frequency range of 32-30k Hz whereas R11 Meta has a frequency range of 46-28 Hz. With a minimum frequency of 32Hz, the SourcePoint 888 can go significantly deeper on the low side and provide stronger bass compared to the R11 Meta's min frequency of 46Hz.
Below graphs depict how these two speakers compare with the max, min and average values of the Min and Max Frequencies of other speakers in the Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf Speakers
None of these speakers achieves full range experience which is commonly agreed as 20Hz-20kHz. In order to achieve lower lows / deeper bass, we recommend you pair these with a subwoofer. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
SourcePoint 888 is a 6 ohms speaker compared to the R11 Meta which has a nominal impedance of 4 ohms. Lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit especially when played at high volume levels, so make sure the amp you pair with the R11 Meta can provide this impedance level.
These two speakers also have different sensitivity levels. SourcePoint 888 sensitivity is rated at 87dB and the R11 Meta's is rated at 90 dB. This 3 dB difference makes the KEF R11 Meta a more sensitive speaker compared to MoFi SourcePoint 888, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. While using an amplifier within this range ensures the nominal performance , inputting a power that is higher than the max wattage can result in a damaged speaker.
SourcePoint 888 can handle a max power of 300 watts RMS from the amp the whereas SourcePoint 888 has a max power handling value of 200 watts RMS , 100 watts less than the R11 Meta.
Keep in mind that a higher max power handling value doesn't necessarily make that a louder speaker
compared to a lower max handling speaker. Loudness or the sound level is also impacted by parameters
such as Impedance, sensitivity and system efficiencies.
Input Type and Bi-Amping / Bi-Wiring
Both SourcePoint 888 and R11 Meta features dual binding post speaker terminals for bi-amping or bi-wiring.
KEF R11 Meta's Custom 5-way bi-wire tool-less binding posts terminals allows Bi-amping or bi-wiring
Cabinet Type and Port Position
Both SourcePoint 888 and R11 Meta have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
KEF R11 Meta Port
Physical Specs
Size of a speaker can sometimes become an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare MoFi SourcePoint 888's and KEF R11 Meta's external dimensions. MoFi SourcePoint 888 has external dimensions of 1070 x 320 x 410mm ( 42.1 x 12.6 x 16.1 inch) whereas KEF R11 Meta has external dimensions of 1296.0 x 312.0 x 385.0mm ( 51-inch x 12-1/4-inch x 15-1/8-inch) .
KEF R11 Meta is 8mm narrower and 25mm less deeper than MoFi SourcePoint 888 but it is also 226mm 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 MoFi SourcePoint 888 is approximately 1312.0cm2 / 203.4inch2 and base area of the KEF R11 Meta is approximately 1201.2cm2 / 186.2inch2. The SourcePoint 888 requires 9% more surface area than the R11 Meta which gives it a small disadvantage on placement in tight spaces.
What's in the Box of KEF R11 Meta?
Here are the items that come with the R11 Meta:
R11 Meta Microfiber grille Plinth and spike accessories Port bungs User manual and warranty information
Nominal Impedance 
Minimum Impedance 
Woofer Size 
High Frequency Response 
Height 
Price per pair* 
Max Input Power 
Sensitivity 
Base Surface Area