In this review, we will be comparing Airmotiv C1+ and Uni-Fi Reference UCR52, two Passive Center Channel speakers from Emotiva and ELAC. Let's have a brief look at the main features
of Emotiva Airmotiv C1+ and ELAC Uni-Fi Ref UCR52 first before getting into our more
detailed comparison.
What size room are the Emotiva Airmotiv C1+ and ELAC Uni-Fi Ref UCR52 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 Emotiva Airmotiv C1+ and ELAC Uni-Fi Ref UCR52 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 Airmotiv C1+ and Uni-Fi Reference UCR52 are 3-way speakers.
| Driver |
Emotiva Airmotiv C1+ |
ELAC Uni-Fi Ref UCR52 |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
25×32 mm-inch
|
1-inch
|
|
Midrange
|
1 x 3-inch |
1 x 4-inch |
|
Woofer
|
2 x 5.25-inch
|
2 x 5.25-inch
|
Airmotiv C1+ features a 25×32 mm" folded ribbon Tweeter , a 3" Midrange and 2 x 5.25" woven fiber cone Woofer with a Crossover frequency at 550 Hz and 2600Hz. On the other hand, the Uni-Fi Reference UCR52 features a 1" soft dome Tweeter , a 4" Midrange and 2 x 5.25" aluminum Woofer .
Frequency Response
Airmotiv C1+ has a frequency range of 50 Hz – 28 kHz whereas Uni-Fi Reference UCR52 has a frequency range of 47-35k Hz. With a minimum frequency of 47Hz, the Uni-Fi Reference UCR52 can go slightly deeper then the Airmotiv C1+'s min frequency of 50Hz.
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 C1+ is a 4 ohms speaker compared to the Uni-Fi Reference UCR52 which has a nominal impedance of 6 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 Airmotiv C1+ can provide this impedance level.
These two speakers also have different sensitivity levels. Airmotiv C1+ sensitivity is rated at 89 dB and the Uni-Fi Reference UCR52's is rated at 85 dB. This 4 dB difference makes the Emotiva Airmotiv C1+ a more sensitive speaker compared to ELAC Uni-Fi Ref UCR52, 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.
Airmotiv C1+ can handle a max power of 140 watts RMS from the amp the whereas Airmotiv C1+ has a max power handling value of 120 watts RMS , 20 watts less than the Uni-Fi Reference UCR52.
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 C1+ features Binding post posts which make bi-amping or bi-wiring possible. Uni-Fi Reference UCR52 has a Binding post which doesn't feature bi-amping/bi-wiring.
Emotiva Airmotiv C1+'s Binding post terminals allows Bi-amping or bi-wiring
ELAC Uni-Fi Ref UCR52's Binding post terminals
Cabinet Type and Port Position
Airmotiv C1+ has a rear firing port whereas Uni-Fi Reference UCR52 has a front firing ports. ELAC Uni-Fi Ref UCR52's front-firing port gives more flexibility in placement in regards to proximity to walls compared to Emotiva Airmotiv C1+ with its rear-firing 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 C1+'s and ELAC Uni-Fi Ref UCR52's external dimensions. Emotiva Airmotiv C1+ has external dimensions of 197.0 x 521.0 x 210.0mm ( 7-3/4 x 20-1/2 x 8-1/4inch) whereas ELAC Uni-Fi Ref UCR52 has external dimensions of 188.0 x 531.0 x 332.0mm ( 7-3/8 x 20-7/8 x 13-1/16inch) .
Emotiva Airmotiv C1+ is 10mm narrower and 122mm less deeper than ELAC Uni-Fi Ref UCR52 but it is also 9mm 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 Emotiva Airmotiv C1+ is approximately 1094.1cm2 / 169.6inch2 and base area of the ELAC Uni-Fi Ref UCR52 is approximately 1762.9cm2 / 273.2inch2. The Airmotiv C1+ requires 38% less surface area than the Uni-Fi Reference UCR52 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 Emotiva Airmotiv C1+ weighs 8.45kg / 18.6lbs and the ELAC Uni-Fi Ref UCR52 weighs 13.20kg / 29lbs. This makes the Uni-Fi Reference UCR52 56% heavier than the Airmotiv C1+.
Here is a comparison of how Airmotiv C1+ and Uni-Fi Reference UCR52's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
What's in the Box of ELAC Uni-Fi Ref UCR52?
Here are the items that come with the Uni-Fi Reference UCR52:
Center-channel loudspeakerGrille2 Jumper-bars (pre-installed)Operating Instructions
 Sensitivity |
89 dB
vs
85 dB
|
Play louder with same amount of amplification power |
 Base Surface Area |
1094cm2 (521x210mm)
vs
1762cm2 (531x332mm)
|
Takes less floor space |
 Price per pair* |
299USD
vs
700USD
|
costs less (*prices may change depending on the seller, location and time) |
 Max Input Power |
140 watts
vs
120 watts
|
Handle more power from your amplifier |
 Nominal Impedance |
6 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Low Frequency Response |
47 Hz
vs
50 Hz
|
Generates deeper bass |
 High Frequency Response |
35k Hz
vs
28k Hz
|
Generates higher frequency |
 Port Position |
Front
vs
Rear
|
Gives more flexibility placing close to walls |
 Height |
188mm
vs
197mm
|
Easier to fit in smaller spaces |
| General |
Emotiva Airmotiv C1+ |
ELAC Uni-Fi Reference UCR52 |
| Brand |
Emotiva |
ELAC |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
Up to 120 watts |
up to 140 watts |
| Sensitivity |
89 dB |
85 dB |
| Impedance |
4 ohms |
6 ohms |
| Frequency Response |
50 Hz – 28 kHz |
47-35k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
5.25" |
5.25" |
| Woofer Composition |
woven fiber cone |
aluminum |
| Woofer Surround Material |
n/a |
Rubber |
| Tweeter Size |
25×32 mm" |
1" |
| Tweeter Type |
folded ribbon |
soft dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
3" |
4" |
| Crossover Frequency |
550 Hz and 2600Hz |
n/a |
| Firing Direction |
rear |
front |
Physical Specs |
|
|
| Height |
197.0mm (7.8") |
188.0mm (7.4") |
| Width |
521.0mm (20.5") |
531.0mm (20.9") |
| Depth |
210.0mm (8.3") |
332.0mm (13.1") |
| Weight |
8.45kg (18.6lbs) |
13.20kg (29lbs) |
| Enclosure |
Bass reflex |
Bass Reflex |
| Finish |
HDF |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Satin Black with Walnut Sides, Satin White with Oak Sides |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
Yes |
n/a |
Other |
|
|
| Parts Warranty |
5 Years |
3 Years |
| Labor Warranty |
5 Years |
3 Years |