In this review, we will be comparing Concord and Uni-Fi FS U5 Slim, two Passive Floor-standing speakers from KLH and ELAC. Let's have a brief look at the main features
of KLH Concord and ELAC Uni-Fi FS U5 Slim first before getting into our more
detailed comparison.
In the following sections, we will get into more detail in order to better understand how the KLH Concord and ELAC Uni-Fi FS U5 Slim 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 Concord is a 2-way design whereas the Uni-Fi FS U5 Slim 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 |
KLH Concord |
ELAC Uni-Fi FS U5 Slim |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 4-inch |
|
Woofer
|
2 x 6.5-inch
|
3 x 5.25-inch
|
Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer . On the other hand, the Uni-Fi FS U5 Slim features a 1" soft dome Tweeter , a 4" Midrange and 3 x 5.25" Aluminum Woofer .
Frequency Response
Concord has a frequency range of 28-23k Hz whereas Uni-Fi FS U5 Slim has a frequency range of 42-25k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the Uni-Fi FS U5 Slim's min frequency of 42Hz.
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 Floor-standing class in our database.
Low Frequency
Floor-standing Speakers
High Frequency
Floor-standing 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
Concord is a 8 ohms speaker compared to the Uni-Fi FS U5 Slim which has a nominal impedance of 4 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 Uni-Fi FS U5 Slim can provide this impedance level.
These two speakers also have different sensitivity levels. Concord sensitivity is rated at 94 dB and the Uni-Fi FS U5 Slim's is rated at 85 dB. This 9 dB difference makes the KLH Concord a more sensitive speaker compared to ELAC Uni-Fi FS U5 Slim, 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. 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.
Concord can handle a max power of 140 watts RMS from the amp the whereas Concord has a max power handling value of watts RMS , 140 watts less than the Uni-Fi FS U5 Slim.
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
Concord features Binding post type posts and Uni-Fi FS U5 Slim has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
KLH Concord's 5-Way post terminals
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 KLH Concord's and ELAC Uni-Fi FS U5 Slim's external dimensions. KLH Concord has external dimensions of 1026.0 x 212.0 x 380.0mm ( 40-3/8 x 8-5/16 x 14-15/16inch) whereas ELAC Uni-Fi FS U5 Slim has external dimensions of 1013.0 x 259.0 x 328.0mm ( 39-7/8 x 10-3/16 x 12-7/8inch) .
ELAC Uni-Fi FS U5 Slim is 13mm shorter and 52mm less deeper than KLH Concord but it is also 47mm wider.
Below you can see the front view size comparison of KLH Concord and ELAC Uni-Fi FS U5 Slim in scale.
Comparison image of KLH Concord and ELAC Uni-Fi FS U5 Slim 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 KLH Concord is approximately 805.6cm2 / 124.9inch2 and base area of the ELAC Uni-Fi FS U5 Slim is approximately 849.5cm2 / 131.7inch2. The Concord requires 5% less surface area than the Uni-Fi FS U5 Slim 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 KLH Concord weighs 20.45kg / 45lbs and the ELAC Uni-Fi FS U5 Slim weighs 0.00kg / 0lbs. This makes the Concord inf% heavier than the Uni-Fi FS U5 Slim.
Here is a comparison of how Concord and Uni-Fi FS U5 Slim'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 KLH Concord?
Here are the items that are included inside the box of Concord:
Floorstanding loudspeakerGrille4 Spike feet (w/ locking nut attached)4 Protective discs4 Rubber feetPort plugManualATTENTION! note
What's in the Box of ELAC Uni-Fi FS U5 Slim?
Here are the items that come with the Uni-Fi FS U5 Slim:
Floorstanding loudspeakerGrille2 Stabilizer-bars4 Spike-feet4 Protective discs4 Knobs6 Machine screws4 Hex-nutsHex-keyOperating Instructions
 Sensitivity |
94 dB
vs
85 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
4 ohms
|
Less selective with amplifiers |
 Woofer Size |
6.5 inches
vs
5.25 inches
|
Larger woofer |
| Low Frequency Response |
28 Hz
vs
42 Hz
|
Generates deeper bass |
 Base Surface Area |
805cm2 (212x380mm)
vs
849cm2 (259x328mm)
|
Takes less floor space |
 Price per pair* |
1000USD
vs
1720USD
|
costs less (*prices may change depending on the seller, location and time) |
 Driver Setup |
3-way
vs
2-way
|
Have a dedicated mid-range driver |
| Number of Woofers |
3
vs
2
|
More woofers |
 High Frequency Response |
25k Hz
vs
23k Hz
|
Generates higher frequency |
 Height |
1013mm
vs
1026mm
|
Easier to fit in smaller spaces |
| General |
KLH Concord |
ELAC Uni-Fi FS U5 Slim |
| Brand |
KLH |
ELAC |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 225 watts |
40-140 watts |
| Sensitivity |
94 dB |
85 dB |
| Impedance |
8 ohms |
4 ohms |
| Frequency Response |
28-23k Hz |
42-25k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
3 |
| Woofer Size |
6.5" |
5.25" |
| Woofer Composition |
Kevlar |
Aluminum |
| Woofer Surround Material |
Butyl Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
n/a |
soft dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
4" |
Physical Specs |
|
|
| Height |
1026.0mm (40.4") |
1013.0mm (39.9") |
| Width |
212.0mm (8.3") |
259.0mm (10.2") |
| Depth |
380.0mm (15") |
328.0mm (12.9") |
| Weight |
20.45kg (45lbs) |
0.00kg (0lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
MDF/Vinyl |
| Available Colors |
Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
10 Years |
3 Years |
| Labor Warranty |
10 Years |
3 Years |