In this review, we will be comparing Platinum C250 3G and Reference 4 Meta, two Passive Center Channel speakers from Monitor Audio and KEF. Let's have a brief look at the main features
of Monitor Audio Platinum C250 3G and KEF Reference 4 Meta first before getting into our more
detailed comparison.
What size room are the Monitor Audio Platinum C250 3G and KEF Reference 4 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:
In the following sections, we will get into more detail in order to better understand how the Monitor Audio Platinum C250 3G and KEF Reference 4 Meta compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking
through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both Platinum C250 3G and Reference 4 Meta are 3-way speakers.
| Driver |
Monitor Audio Platinum C250 3G |
KEF Reference 4 Meta |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 2.5-inch |
1 x 5-inch |
|
Woofer
|
2 x 5-inch
|
4 x 6.5-inch
|
Platinum C250 3G features a 1" MPD III Tweeter , a 2.5" Midrange and 2 x 5" RDT III Woofer with a Crossover frequency at 850 Hz - 3500 Hz. On the other hand, the Reference 4 Meta features a 1" aluminium dome with MAT Tweeter , a 5" Midrange and 4 x 6.5" aluminium cone Woofer with a Crossover frequency at 450Hz and 2100Hz.
Frequency Response
Platinum C250 3G has a frequency range of 30-60k Hz whereas Reference 4 Meta has a frequency range of 48-35k Hz. With a minimum frequency of 30Hz, the Platinum C250 3G can go significantly deeper on the low side and provide stronger bass compared to the Reference 4 Meta's min frequency of 48Hz.
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 Center Channel class in our database.
Low Frequency
Center Channel Speakers
High Frequency
Center Channel Speakers
Monitor Audio Platinum C250 3G
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
Platinum C250 3G and Reference 4 Meta have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Platinum C250 3G sensitivity is rated at 88dB and the Reference 4 Meta's is at 88 dB.
One thing to keep in mind that the lower impedance speakers, especially the ones that are rated at 4 ohms may put more pressure on the amplifier unit comared to higher impedance speakers especially at high volume levels, so make sure the amp you pair with the Platinum C250 3G and the Platinum C250 3G can provide this impedance level.
Sensitivity
Center Channel 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.
Platinum C250 3G can handle a max power of 400 watts RMS from the amp the whereas Platinum C250 3G has a max power handling value of 300 watts RMS , 100 watts less than the Reference 4 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 Platinum C250 3G and Reference 4 Meta features dual binding post speaker terminals for bi-amping or bi-wiring.
Monitor Audio Platinum C250 3G's Binding post terminals allows Bi-amping or bi-wiring
KEF Reference 4 Meta's Custom 5-way bi-wire tool-less binding posts terminals allows Bi-amping or bi-wiring
Monitor Audio Platinum C250 3G 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 Monitor Audio Platinum C250 3G's and KEF Reference 4 Meta's external dimensions. Monitor Audio Platinum C250 3G has external dimensions of 225 x 630 x 325.7 mm ( 8.8 x 24.8 x 12.8-inch) whereas KEF Reference 4 Meta has external dimensions of 205 x 1090 x 463 mm ( 8.1 x 42.9 x 18.2 in.) .
Monitor Audio Platinum C250 3G is 460mm narrower and 137mm less deeper than KEF Reference 4 Meta but it is also 20mm 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 Platinum C250 3G is approximately 2053.8cm2 / 318.3inch2 and base area of the KEF Reference 4 Meta is approximately 5046.7cm2 / 782.2inch2. The Platinum C250 3G requires 59% less surface area than the Reference 4 Meta which gives it a small advantage on placement in tight spaces.
Weight Comparison The weight of a loudspeaker can become an important factor if you need to move and reposition the unit often. Weight of a speaker can also "sometimes" be an indicator of the rigidity of the enclosure and the quality of the internal components used. The Monitor Audio Platinum C250 3G weighs 25.40kg / 55.9lbs and the KEF Reference 4 Meta weighs 45.20kg / 99.4lbs. This makes the Reference 4 Meta 78% heavier than the Platinum C250 3G.
Here is a comparison of how Platinum C250 3G and Reference 4 Meta's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
Monitor Audio Platinum C250 3G
 Minimum Impedance |
4 ohms
vs
3.2 ohms
|
Very low impedance levels puts more pressure on amplifier |
 Low Frequency Response |
30 Hz
vs
48 Hz
|
Generates deeper bass |
 High Frequency Response |
60k Hz
vs
35k Hz
|
Generates higher frequency |
 Base Surface Area |
2053cm2 (630x326mm)
vs
5046cm2 (1090x463mm)
|
Takes less floor space |
 Price per pair* |
5900USD
vs
8000USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
400 watts
vs
300 watts
|
Handle more power from your amplifier |
| Woofer Size |
6.5 inches
vs
5 inches
|
Larger woofer |
| Number of Woofers |
4
vs
2
|
More woofers |
 Height |
205mm
vs
225mm
|
Easier to fit in smaller spaces |
| General |
Monitor Audio Platinum C250 3G |
KEF Reference 4 Meta |
| Brand |
Monitor Audio |
KEF |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
up to 300 watts |
50-400 watts |
| Sensitivity |
88dB |
88 dB |
| Impedance |
4 ohms |
4 ohms |
| Impedance |
4 ohms |
3.2 ohms |
| Frequency Response |
30-60k Hz |
48-35k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
4 |
| Woofer Size |
5" |
6.5" |
| Woofer Composition |
RDT III |
aluminium cone |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
n/a |
aluminium dome with MAT |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
2.5" |
5" |
| Crossover Frequency |
850 Hz - 3500 Hz |
450Hz and 2100Hz |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
225.0mm (8.9") |
205.0mm (8.1") |
| Width |
630.0mm (24.8") |
1090.0mm (42.9") |
| Depth |
326.0mm (12.8") |
463.0mm (18.2") |
| Weight |
25.40kg (55.9lbs) |
45.20kg (99.4lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Available Colors |
Piano Black, Piano Ebony, Satin White |
High-Gloss White/Blue, High-Gloss White/Champagne, High-Gloss Black/ Grey, High-Gloss Black/Copper, Satin Walnut/Silver |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
Yes |
Other |
|
|
| Parts Warranty |
|
5 years |
| Labor Warranty |
|
5 years |