In this review, we will be comparing RC-64 III and R2c, two Passive Center Channel speakers from Klipsch and KEF.
Let's have a brief look at the main features
of Klipsch RC-64 III and KEF R2c first before getting into our more
detailed comparison.
Klipsch RC-64 III Key Specs
- 2-way Design
- 1-3/4" Tractrix horn Tweeter
- 4 x 6.5" Cerametallic cone Woofer
- 57-24k Hz Frequency Response
- 99 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 200watts
- Weight:25.00kg
- Dimensions (H x W x D): 204.0" x 35-3/4" x 15-1/4"( 204.0 x 909.0 x 388.0mm )
KEF R2c Key Specs
- 3-way Design
- 1" Dome Tweeter
- 5" Midrange
- 2 x 5.25" Hybrid Aluminum Woofer
- 5" Midrange
- 74-28k Hz Frequency Response
- 87 dB Sensitivity
- Impedance: 8ohms
- Power Range:15-200watts
- Weight:16.90kg
- Dimensions (H x W x D): 177.0" x 21-11/16" x 12-7/16"( 177.0 x 551.0 x 316.0mm )
What size room are the Klipsch RC-64 III and KEF R2c 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* |
Klipsch RC-64 III |
KEF R2c |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Average |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Average |
| Very Large Room |
Poor |
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.)
In the following sections, we will get into more detail in order to better understand how the Klipsch RC-64 III and KEF R2c 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
One of the fundamental differences between these two speakers is that RC-64 III is a 2-way design whereas the R2c 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.
| Driver |
Klipsch RC-64 III |
KEF R2c |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-3/4-inch
|
1-inch
|
|
Midrange
|
- |
1 x 5-inch |
|
Woofer
|
4 x 6.5-inch
|
2 x 5.25-inch
|
RC-64 III features a 1-3/4" titanium Tractrix horn Tweeter and 4 x 6.5" Cerametallic cone Woofer . On the other hand, the R2c features a 1" aluminum Dome Tweeter , a 5" Midrange and 2 x 5.25" Hybrid Aluminum Woofer with a Crossover frequency at 400Hz and 2900Hz.
Frequency Response
RC-64 III has a frequency range of 57-24k Hz whereas R2c has a frequency range of 74-28k Hz. With a minimum frequency of 57Hz, the RC-64 III can go significantly deeper on the low side and provide stronger bass compared to the R2c's min frequency of 74Hz.
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
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
RC-64 III and R2c have the same Impedance of 8 ohms but where they differ is the sensitivity levels. RC-64 III sensitivity is rated at 99 dB and the R2c's is at 87 dB. This 12 dB difference makes the Klipsch RC-64 III a more sensitive speaker compared to KEF R2c, hence will play louder with the same amount of watts.
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.
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 RC-64 III and R2c features dual binding post speaker terminals for bi-amping or bi-wiring.
Klipsch RC-64 III's Binding post terminals allows Bi-amping or bi-wiring
KEF R2c's Binding post terminals allows Bi-amping or bi-wiring
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 Klipsch RC-64 III's and KEF R2c's external dimensions. Klipsch RC-64 III has external dimensions of 204.0 x 909.0 x 388.0mm ( 8 x 35-3/4 x 15-1/4inch) whereas KEF R2c has external dimensions of 177.0 x 551.0 x 316.0mm ( 6-15/16 x 21-11/16 x 12-7/16inch) .
Klipsch RC-64 III is clearly the larger of the two speakers. Its body is 358mm wider, 27mm taller and 72mm deeper than KEF R2c.
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 Klipsch RC-64 III is approximately 3526.9cm2 / 546.7inch2 and base area of the KEF R2c is approximately 1741.2cm2 / 269.9inch2. The RC-64 III requires 103% more surface area than the R2c which gives it a small disadvantage on placement in tight spaces.