In this review, we will be comparing Concord and R7, two Passive Floor-standing speakers from KLH and KEF.
Let's have a brief look at the main features
of KLH Concord and KEF R7 first before getting into our more
detailed comparison.
KLH Concord Key Specs
- 2-way Design
- 1" Tweeter
- 2 x 6.5" Kevlar Woofer
- 28-23k Hz Frequency Response
- 94 dB Sensitivity
- Impedance: 8ohms
- Power Range:up to 225watts
- Weight:20.45kg
- Dimensions (H x W x D): 1026.0" x 8-5/16" x 14-15/16"( 1026.0 x 212.0 x 380.0mm )
KEF R7 Key Specs
- 3-way Design
- 1" Dome Tweeter
- 5" Midrange
- 2 x 6.5" Hybrid Aluminum Woofer
- 5" Midrange
- 48-28k Hz Frequency Response
- 88 dB Sensitivity
- Impedance: 8ohms
- Power Range:15-250watts
- Weight:31.40kg
- Dimensions (H x W x D): 1113.0" x 8" x 15-5/16"( 1113.0 x 200.0 x 389.0mm )
In the following sections, we will get into more detail in order to better understand how the KLH Concord and KEF R7 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 R7 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 |
KEF R7 |
|
Driver Setup
|
2-way
|
3-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
1 x 5-inch |
|
Woofer
|
2 x 6.5-inch
|
2 x 6.5-inch
|
Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer . On the other hand, the R7 features a 1" aluminum Dome Tweeter , a 5" Midrange and 2 x 6.5" Hybrid Aluminum Woofer with a Crossover frequency at 400Hz and 2900Hz.
Frequency Response
Concord has a frequency range of 28-23k Hz whereas R7 has a frequency range of 48-28k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the R7's min frequency of 48Hz.
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 and R7 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Concord sensitivity is rated at 94 dB and the R7's is at 88 dB. This 6 dB difference makes the KLH Concord a more sensitive speaker compared to KEF R7, 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 250 watts RMS from the amp the whereas Concord has a max power handling value of watts RMS , 250 watts less than the R7.
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
R7 features Binding post posts which make bi-amping or bi-wiring possible. Concord has a 5-Way post which doesn't feature bi-amping/bi-wiring.
KLH Concord's 5-Way post terminals
KEF R7'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 KLH Concord's and KEF R7'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 KEF R7 has external dimensions of 1113.0 x 200.0 x 389.0mm ( 43-13/16 x 8 x 15-5/16inch) .
KLH Concord is 87mm shorter and 9mm less deeper than KEF R7 but it is also 12mm wider.
Below you can see the front view size comparison of KLH Concord and KEF R7 in scale.
Comparison image of KLH Concord and KEF R7 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 KEF R7 is approximately 778.0cm2 / 120.6inch2. The Concord requires 4% more surface area than the R7 which gives it a small disadvantage 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 KEF R7 weighs 31.40kg / 69.1lbs. This makes the R7 54% heavier than the Concord.
Here is a comparison of how Concord and R7'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 KEF R7?
Here are the items that come with the R7:
Floorstanding loudspeakerGrille2 Foam port plugs4 Outrigger feet4 Spikes4 Protective discs4 Screws4 WashersWrenchHex-keyUser ManualWarranty Information
 Sensitivity |
94 dB
vs
88 dB
|
Play louder with same amount of amplification power |
 Low Frequency Response |
28 Hz
vs
48 Hz
|
Generates deeper bass |
 Height |
1026mm
vs
1113mm
|
Easier to fit in smaller spaces |
 Price per pair* |
1000USD
vs
4500USD
|
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 |
 High Frequency Response |
28k Hz
vs
23k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Base Surface Area |
778cm2
vs
805cm2
|
Takes less floor space |
| General |
KLH Concord |
KEF R7 |
| Brand |
KLH |
KEF |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 225 watts |
15-250 watts |
| Sensitivity |
94 dB |
88 dB |
| Impedance |
8 ohms |
8 ohms |
| Impedance |
n/a |
3.2 ohms |
| Frequency Response |
28-23k Hz |
48-28k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Kevlar |
Hybrid Aluminum |
| Woofer Surround Material |
Butyl Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
n/a |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
5" |
| Crossover Frequency |
n/a |
400Hz and 2900Hz |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
1026.0mm (40.4") |
1113.0mm (43.8") |
| Width |
212.0mm (8.3") |
200.0mm (7.9") |
| Depth |
380.0mm (15") |
389.0mm (15.3") |
| Weight |
20.45kg (45lbs) |
31.40kg (69.1lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
MDF/Lacquer |
| Available Colors |
Black |
Black Gloss, White Gloss, Walnut |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
Yes |
Other |
|
|
| Parts Warranty |
10 Years |
5 Years |
| Labor Warranty |
10 Years |
5 Years |