In this review, we will be comparing Wharfedale Diamond 12.3i and Concord, two Passive Floor-standing speakers from Wharfedale and KLH.
Let's have a brief look at the main features
of Wharfedale Diamond 12.3i and KLH Concord first before getting into our more
detailed comparison.
Wharfedale Diamond 12.3i Key Specs
- 1" Soft-Dome Tweeter
- 2 x 5" Mica-infused polypropylene Woofer
- 45-20k Hz Frequency Response
- 89 dB Sensitivity
- Impedance: 8ohms
- Power Range:30-150watts
- Weight:19.55kg
- Dimensions (H x W x D): 985.0" x 9-3/4" x 13-3/4"( 985.0 x 248.0 x 350.0mm )
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 )
In the following sections, we will get into more detail in order to better understand how the Wharfedale Diamond 12.3i and KLH Concord compare and hopefully end up with enough arguments to decide which one of these loudspeakers is the better choice for you.
**This post contains affiliate links, and I will be compensated if you make a purchase after clicking
through my links. As an Amazon Associate I earn from qualifying purchases.
Drivers
One of the fundamental differences between these two speakers is that Wharfedale Diamond 12.3i is a -way design whereas the Concord is a 2-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 |
Wharfedale Diamond 12.3i |
KLH Concord |
|
Driver Setup
|
-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 5-inch
|
2 x 6.5-inch
|
Wharfedale Diamond 12.3i features a 1" Soft-Dome Tweeter and 2 x 5" Mica-infused polypropylene Woofer . On the other hand, the Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer .
Frequency Response
Wharfedale Diamond 12.3i has a frequency range of 45-20k Hz whereas Concord has a frequency range of 28-23k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the Wharfedale Diamond 12.3i's min frequency of 45Hz.
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
Wharfedale Diamond 12.3i and Concord have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Wharfedale Diamond 12.3i sensitivity is rated at 89 dB and the Concord's is at 94 dB. This 5 dB difference makes the KLH Concord a more sensitive speaker compared to Wharfedale Diamond 12.3i, 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.
Wharfedale Diamond 12.3i can handle a max power of 150 watts RMS from the amp the whereas Concord has a max power handling value of watts RMS, 150 watts less than the Wharfedale Diamond 12.3i.
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
Wharfedale Diamond 12.3i 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
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 Wharfedale Diamond 12.3i's and KLH Concord's external dimensions. Wharfedale Diamond 12.3i has external dimensions of 985.0 x 248.0 x 350.0mm ( 38-3/4inch x 9-3/4inch x 13-3/4inch ) whereas 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) .
Wharfedale Diamond 12.3i is 41mm shorter and 30mm less deeper than KLH Concord but it is also 36mm wider.
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 Wharfedale Diamond 12.3i is approximately 868.0cm2 / 134.5inch2 and base area of the KLH Concord is approximately 805.6cm2 / 124.9inch2. The Wharfedale Diamond 12.3i requires 8% more surface area than the Concord which gives it a small disadvantage on placement in tight spaces.