In this review, we will be comparing Uni-Fi 2.0 UF52 and C 97 II, two Passive Floor-standing speakers from ELAC and Jamo.
Let's have a brief look at the main features
of ELAC Uni-Fi 2.0 UF52 and Jamo C 97 II first before getting into our more
detailed comparison.
| Key Specs | ELAC Uni-Fi 2.0 UF52 | Jamo C 97 II |
|---|
| Brand | ELAC
Germany · founded 1926 | Jamo
Denmark · founded 1966 |
|---|
| Design | 3-way | 3-way |
|---|
| Tweeter | 1" soft dome | 1" |
|---|
| Midrange | 4" | 6" |
|---|
| Woofer | 3 x 5.25" Aluminum | 3 x 6" Composite |
|---|
| Frequency response | 42-35k Hz | 32-24k Hz |
|---|
| Sensitivity | 85 dB | 89 dB |
|---|
| Impedance | 6 ohms | 6 ohms |
|---|
| Power range | 40-140 watts | 50-180 watts |
|---|
| Weight | 19.73kg / 43.4lbs | 24.55kg / 54lbs |
|---|
| Dimensions (H x W x D) | 39-5/16" x 9-1/8" x 12-11/16"
999.0 x 232.0 x 323.0mm | 42-1/8" x 9-3/4" x 15-13/16"
1070.0 x 248.0 x 402.0mm |
|---|
What size room are the ELAC Uni-Fi 2.0 UF52 and Jamo C 97 II 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* |
ELAC Uni-Fi 2.0 UF52 |
Jamo C 97 II |
| Near-field |
Bad |
Bad |
| Small Room |
Poor |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Good |
Good |
| 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.)
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both Uni-Fi 2.0 UF52 and C 97 II are 3-way speakers.
ELAC Uni-Fi 2.0 UF52Jamo C 97 II
TweeterMidrangeWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
ELAC Uni-Fi 2.0 UF52 |
Jamo C 97 II |
|
Driver Setup
|
3-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
1 x 4-inch |
1 x 6-inch |
|
Woofer
|
3 x 5.25-inch
|
3 x 6-inch
|
Uni-Fi 2.0 UF52 features a 1" soft dome Tweeter, a 4" Midrange and 3 x 5.25" Aluminum Woofer with a Crossover frequency at 200hZ and 2000HZ. On the other hand, the C 97 II features a 1" Tweeter, a 6" Midrange and 3 x 6" Composite Woofer.
Frequency Response
Uni-Fi 2.0 UF52 has a frequency range of 42-35k Hz whereas C 97 II has a frequency range of 32-24k Hz. With a minimum frequency of 32Hz, the C 97 II can go significantly deeper on the low side and provide stronger bass compared to the Uni-Fi 2.0 UF52's min frequency of 42Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
Neither pair reaches down to 20Hz, the usual definition of full-range, which is normal for speakers of this size. If you want the bottom octave for movies or bass-heavy music, add a subwoofer to whichever you choose. Visit our Powered Subwoofers section to find out more about the available options.
Impedance and Sensitivity
Uni-Fi 2.0 UF52 and C 97 II have the same Impedance of 6 ohms but where they differ is the sensitivity levels. Uni-Fi 2.0 UF52 sensitivity is rated at 85 dB and the C 97 II's is at 89 dB. This 4 dB difference makes the Jamo C 97 II a more sensitive speaker compared to ELAC Uni-Fi 2.0 UF52, hence will play louder with the same amount of watts.
Sensitivity
Floor-standing Speakers
Power Range
Power
range is the range of input power in watts RMS that a loudspeaker is designed to handle. Staying
within that range gives nominal performance; driving the speaker beyond its maximum wattage can damage it.
C 97 II can handle a max power of 180 watts RMS, whereas Uni-Fi 2.0 UF52 has a max power handling value of 140 watts RMS, 40 watts less than the C 97 II.
Note that higher power handling does not make a speaker louder: that depends mainly on
sensitivity and impedance. The calculator below shows how loud each of these actually plays
on a real amplifier.
Which plays louder on your amplifier?
Starting with a popular amplifier - change it to the one you own, or any you are
considering, and watch both numbers move.
Input Type and Bi-Amping / Bi-Wiring
C 97 II features Posts posts which make bi-amping or bi-wiring possible. Uni-Fi 2.0 UF52 has a 5-Way post which doesn't feature bi-amping/bi-wiring.
ELAC Uni-Fi 2.0 UF52's 5-Way post terminals
Jamo C 97 II's Posts terminals allows Bi-amping or bi-wiring
Physical Specs
The size of a speaker can sometimes be an important decision factor due to space constraints or in some cases purely for esthetic reasons. In this section, we are going to compare ELAC Uni-Fi 2.0 UF52's and Jamo C 97 II's external dimensions. ELAC Uni-Fi 2.0 UF52 has external dimensions of 999.0 x 232.0 x 323.0mm (39-5/16 x 9-1/8 x 12-11/16inch) whereas Jamo C 97 II has external dimensions of 1070.0 x 248.0 x 402.0mm (42-1/8 x 9-3/4 x 15-13/16inch).
Jamo C 97 II is clearly the larger of the two speakers. Its body is 16mm wider, 71mm taller and 79mm deeper than ELAC Uni-Fi 2.0 UF52.
Below you can see the front view size comparison of ELAC Uni-Fi 2.0 UF52 and Jamo C 97 II in scale.
Comparison image of ELAC Uni-Fi 2.0 UF52 and Jamo C 97 II Size and External Dimensions
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 ELAC Uni-Fi 2.0 UF52 is approximately 749.4cm2 / 116.2inch2 and base area of the Jamo C 97 II is approximately 997.0cm2 / 154.5inch2. The Uni-Fi 2.0 UF52 requires 25% less surface area than the C 97 II 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 ELAC Uni-Fi 2.0 UF52 weighs 19.73kg / 43.4lbs and the Jamo C 97 II weighs 24.55kg / 54lbs. This makes the C 97 II 24% heavier than the Uni-Fi 2.0 UF52.
Here is a comparison of how Uni-Fi 2.0 UF52 and C 97 II's weights compare with the average, max and min weights in Passive Floor-standing class.
Weight
All Floor-standing Speakers
What's in the Box of ELAC Uni-Fi 2.0 UF52?
Here are the items that are included inside the box of Uni-Fi 2.0 UF52:
- Floorstanding loudspeaker
- Grille
- 4 Stabilizer-bars with spike feet
- 4 Protective discs
- 4 Knobs
- 8 Machine screws
- Hex-key
What's in the Box of Jamo C 97 II?
Here are the items that come with the C 97 II:
- Floorstanding loudspeaker
- Grille
- 4 Outrigger feet
- 4 Spikes (pre-installed on outrigger feet)
- 4 Rubber feet
- 8 Machine screws
- 2 Jumper-straps (pre-installed)
- Hex-key
- User Manual
- Important Safety Instructions
- Warranty Information
 High Frequency Response |
35k Hz
vs
24k Hz
|
Generates higher frequency |
 Height |
999mm
vs
1070mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
749cm2
vs
997cm2
|
Takes less floor space |
 Max Input Power |
180 watts
vs
140 watts
|
Handle more power from your amplifier |
 Sensitivity |
89 dB
vs
85 dB
|
Play louder with same amount of amplification power |
 Woofer Size |
6 inches
vs
5.25 inches
|
Larger woofer |
|
Low Frequency Response |
32 Hz
vs
42 Hz
|
Generates deeper bass |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Price per pair* |
1378USD
vs
1400USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
ELAC Uni-Fi 2.0 UF52 |
Jamo Concert 9 Series C 97 II |
| Brand |
ELAC |
Jamo |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
40-140 watts |
50-180 watts |
| Sensitivity |
85 dB |
89 dB |
| Impedance |
6 ohms |
6 ohms |
| Frequency Response |
42-35k Hz |
32-24k Hz |
Drivers |
|
|
| Woofer Quantity |
3 |
3 |
| Woofer Size |
5.25" |
6" |
| Woofer Composition |
Aluminum |
Composite |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
soft dome |
n/a |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
4" |
6" |
| Crossover Frequency |
200hZ and 2000HZ |
n/a |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
999.0mm (39.3") |
1070.0mm (42.1") |
| Width |
232.0mm (9.1") |
248.0mm (9.8") |
| Depth |
323.0mm (12.7") |
402.0mm (15.8") |
| Weight |
19.73kg (43.4lbs) |
24.55kg (54lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
Yes |
Other |
|
|
| Parts Warranty |
3 Years |
5 Years |
| Labor Warranty |
3 Years |
5 Years |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | B | Jamo C 97 II digs deeper - 32Hz against 42Hz. |
| Amplifier needs | B | Jamo C 97 II is more sensitive (89dB vs 85dB), so it goes louder on the same amplifier. |
| Headroom | B | Jamo C 97 II takes more power (180W vs 140W) - more in hand in a big room. |
| Size | depends | ELAC Uni-Fi 2.0 UF52 is easier to place; Jamo C 97 II is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | B | Jamo C 97 II: bi-amping. |
| Price | evenly matched | Much the same money ($1,400 vs $1,378 a pair). |
A ELAC Uni-Fi 2.0 UF52 B Jamo C 97 II
depends neither is better in the abstract - it turns on your room, your system or how you will use them. Only specs published for both speakers are judged; anything missing on either side is left out rather than guessed.
Which should you choose?
Jamo C 97 II has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 42Hz anyway, so judge these on the other rows instead. In a large or open-plan room, Jamo C 97 II has the cabinet volume to fill it more easily; in a small room, near a wall or at desk distance, ELAC Uni-Fi 2.0 UF52 is the easier speaker to get right.
And remember what a spec sheet cannot show: how each looks in your room and whether the finish suits it, what dealer support and warranty are like where you live, and how they actually sound to you. If you can hear them first - ideally with your own music - that will tell you more than any number above.