In this review, we will be comparing Airmotiv C2+ and ElectroMotion ESL C, two Passive Center Channel speakers from Emotiva and MartinLogan.
Let's have a brief look at the main features
of Emotiva Airmotiv C2+ and MartinLogan ESL C first before getting into our more
detailed comparison.
Emotiva Airmotiv C2+ Key Specs
- 3-way Design
- 25×32 mm" folded ribbon Tweeter
- 3" Midrange
- 2 x 6.5" woven fiber cone Woofer
- 45 Hz – 28 kHz Frequency Response
- 92 dB Sensitivity
- Impedance: 4ohms
- Power Range:Up to 150watts
- Weight:16.40kg
- Dimensions (H x W x D): 220.0" x 31-15/16" x 10-1/2"( 220.0 x 812.0 x 267.0mm )
MartinLogan ESL C Key Specs
- 3-way Design
- 1 x 1-7/16" Folded Motion Tweeter
- 2 x 5.25" high-rigidity aluminum woofers Woofer
- 66-23k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 4ohms
- Power Range:20-300watts
- Weight:14.55kg
- Dimensions (H x W x D): 194.0" x 22-7/8" x 16-1/8"( 194.0 x 582.0 x 410.0mm )
What size room are the Emotiva Airmotiv C2+ and MartinLogan ESL C 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* |
Emotiva Airmotiv C2+ |
MartinLogan ESL C |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Good |
| Very Large Room |
Poor |
Average |
(* 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 Emotiva Airmotiv C2+ and MartinLogan ESL C 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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through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
Both Airmotiv C2+ and ElectroMotion ESL C are 3-way speakers.
| Driver |
Emotiva Airmotiv C2+ |
MartinLogan ESL C |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
25×32 mm-inch
|
1 x 1-7/16-inch
|
|
Midrange
|
2 x 3-inch |
- |
|
Woofer
|
2 x 6.5-inch
|
2 x 5.25-inch
|
Airmotiv C2+ features a 25×32 mm" folded ribbon Tweeter , a 3" Midrange and 2 x 6.5" woven fiber cone Woofer with a Crossover frequency at 350 Hz and 3200Hz. On the other hand, the ElectroMotion ESL C features a 1 x 1-7/16" Folded Motion Tweeter and 2 x 5.25" high-rigidity aluminum woofers Woofer .
Frequency Response
Airmotiv C2+ has a frequency range of 45 Hz – 28 kHz whereas ElectroMotion ESL C has a frequency range of 66-23k Hz. With a minimum frequency of 45Hz, the Airmotiv C2+ can go significantly deeper on the low side and provide stronger bass compared to the ElectroMotion ESL C's min frequency of 66Hz.
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
Airmotiv C2+ and ElectroMotion ESL C have the same Impedance of 4 ohms but where they differ is the sensitivity levels. Airmotiv C2+ sensitivity is rated at 92 dB and the ElectroMotion ESL C's is at 89 dB. This 3 dB difference makes the Emotiva Airmotiv C2+ a more sensitive speaker compared to MartinLogan ESL C, hence will play louder with the same amount of watts.
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 Airmotiv C2+ and the Airmotiv C2+ 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.
Airmotiv C2+ can handle a max power of 300 watts RMS from the amp the whereas Airmotiv C2+ has a max power handling value of 150 watts RMS , 150 watts less than the ElectroMotion ESL C.
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
Airmotiv C2+ features Binding post posts which make bi-amping or bi-wiring possible. ElectroMotion ESL C has a Binding post which doesn't feature bi-amping/bi-wiring.
Emotiva Airmotiv C2+'s Binding post terminals allows Bi-amping or bi-wiring
MartinLogan ESL C's Binding post terminals
Emotiva Airmotiv C2+ 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 Emotiva Airmotiv C2+'s and MartinLogan ESL C's external dimensions. Emotiva Airmotiv C2+ has external dimensions of 220.0 x 812.0 x 267.0mm ( 8-5/8 x 31-15/16 x 10-1/2inch) whereas MartinLogan ESL C has external dimensions of 194.0 x 582.0 x 410.0mm ( 7-5/8 x 22-7/8 x 16-1/8inch) .
MartinLogan ESL C is 230mm narrower and 26mm shorter than Emotiva Airmotiv C2+ but it is also 143mm deeper.
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 Emotiva Airmotiv C2+ is approximately 2168.0cm2 / 336.0inch2 and base area of the MartinLogan ESL C is approximately 2386.2cm2 / 369.9inch2. The Airmotiv C2+ requires 9% less surface area than the ElectroMotion ESL C which gives it a small advantage on placement in tight spaces.