In this review, we will be comparing Concord and S60, two Passive Floor-standing speakers from KLH and Polk Audio. Let's have a brief look at the main features
of KLH Concord and Polk S60 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 Polk S60 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 Concord and S60 are 2-way speakers.
| Driver |
KLH Concord |
Polk S60 |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 6.5-inch
|
3 x 6.5-inch
|
Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer . On the other hand, the S60 features a 1" Terylene Dome Tweeter and 3 x 6.5" Mica-reinforced polypropylene Woofer with a Crossover frequency at 2500Hz.
Frequency Response
Concord has a frequency range of 28-23k Hz whereas S60 has a frequency range of 26-40k Hz. With a minimum frequency of 26Hz, the S60 can go slightly deeper then the Concord's min frequency of 28Hz.
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 S60 have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Concord sensitivity is rated at 94 dB and the S60's is at 90 dB. This 4 dB difference makes the KLH Concord a more sensitive speaker compared to Polk S60, 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 300 watts RMS from the amp the whereas Concord has a max power handling value of watts RMS , 300 watts less than the S60.
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
S60 features 5-way 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
Polk S60's 5-way post terminals allows Bi-amping or bi-wiring
Polk S60 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 KLH Concord's and Polk S60'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 Polk S60 has external dimensions of 1131.0 x 299.0 x 401.0mm ( 44-1/2 x 11-3/4 x 15-3/4inch) .
Polk S60 is clearly the larger of the two speakers. Its body is 87mm wider, 105mm taller and 21mm deeper than KLH Concord.
Below you can see the front view size comparison of KLH Concord and Polk S60 in scale.
Comparison image of KLH Concord and Polk S60 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 Polk S60 is approximately 1199.0cm2 / 185.8inch2. The Concord requires 33% less surface area than the S60 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 Polk S60 weighs 23.60kg / 51.9lbs. This makes the S60 15% heavier than the Concord.
Here is a comparison of how Concord and S60'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 Polk S60?
Here are the items that come with the S60:
Floorstanding loudspeakerGrille (attached)4 Feet (pre-installed)Owners ManualOnline Product Registration
 Sensitivity |
94 dB
vs
90 dB
|
Play louder with same amount of amplification power |
 Height |
1026mm
vs
1131mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
805cm2 (212x380mm)
vs
1199cm2 (299x401mm)
|
Takes less floor space |
 Number of Woofers |
3
vs
2
|
More woofers |
| Low Frequency Response |
26 Hz
vs
28 Hz
|
Generates deeper bass |
 High Frequency Response |
40k Hz
vs
23k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Price per pair* |
898USD
vs
1000USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
KLH Concord |
Polk Audio Signature S60 |
| Brand |
KLH |
Polk Audio |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 225 watts |
20-300 watts |
| Sensitivity |
94 dB |
90 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
28-23k Hz |
26-40k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
3 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Kevlar |
Mica-reinforced polypropylene |
| Woofer Surround Material |
Butyl Rubber |
Butyl rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
n/a |
Dome |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
2500Hz |
| Firing Direction |
n/a |
bottom |
Physical Specs |
|
|
| Height |
1026.0mm (40.4") |
1131.0mm (44.5") |
| Width |
212.0mm (8.3") |
299.0mm (11.8") |
| Depth |
380.0mm (15") |
401.0mm (15.8") |
| Weight |
20.45kg (45lbs) |
23.60kg (51.9lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
Meddite MDF |
| Available Colors |
Black |
Black |
| 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 |