In this review, we will be comparing Concord and R-610F, two Passive Floor-standing speakers from KLH and Klipsch.
Let's have a brief look at the main features
of KLH Concord and Klipsch R-610F first before getting into our more
detailed comparison.
| Key Specs | KLH Concord | Klipsch R-610F |
|---|
| Brand | KLH
United States · founded 1957 | Klipsch
United States · founded 1946 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" | 1.0" |
|---|
| Woofer | 2 x 6.5" Kevlar | 6.5" Copper-spun IMG |
|---|
| Frequency response | 28-23k Hz | 45-21k Hz |
|---|
| Sensitivity | 94 dB | 94 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | up to 225 watts | up to 85 watts |
|---|
| Weight | 20.45kg / 45lbs | 16.36kg / 36lbs |
|---|
| Dimensions (H x W x D) | 40-3/8" x 8-5/16" x 14-15/16"
1026.0 x 212.0 x 380.0mm | 37-1/16" x 9-3/8" x 14-1/2"
942.0 x 239.0 x 369.0mm |
|---|
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
Drivers
Both Concord and R-610F are 2-way speakers.
KLH ConcordKlipsch R-610F
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
KLH Concord |
Klipsch R-610F |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1.0-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
2 x 6.5-inch
|
1 x 6.5-inch
|
Concord features a 1" anodized aluminum Tweeter and 2 x 6.5" Kevlar Woofer. On the other hand, the R-610F features a 1.0" Tweeter and 1 x 6.5" Copper-spun IMG Woofer.
Frequency Response
Concord has a frequency range of 28-23k Hz whereas R-610F has a frequency range of 45-21k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the R-610F's min frequency of 45Hz.
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
Concord and R-610F have the same Impedance of 8 ohms and their sensitivity is also same at 94 dB.
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.
Concord can handle a max power of 225 watts RMS, whereas R-610F has a max power handling value of 85 watts RMS, 140 watts less than the Concord.
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
Concord features Post type posts and R-610F has a Post type posts. None of these speakers feature bi-amping/bi-wiring.
KLH Concord's 5-Way post terminals
Klipsch R-610F's Post terminals
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 KLH Concord's and Klipsch R-610F'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 Klipsch R-610F has external dimensions of 942.0 x 239.0 x 369.0mm (37-1/16 x 9-3/8 x 14-1/2inch).
Klipsch R-610F is 84mm shorter and 11mm less deeper than KLH Concord but it is also 27mm wider.
Below you can see the front view size comparison of KLH Concord and Klipsch R-610F in scale.
Comparison image of KLH Concord and Klipsch R-610F 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 Klipsch R-610F is approximately 881.9cm2 / 136.7inch2. The Concord requires 9% less surface area than the R-610F 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 Klipsch R-610F weighs 16.36kg / 36lbs. This makes the Concord 25% heavier than the R-610F.
Here is a comparison of how Concord and R-610F'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 loudspeaker
- Grille
- 4 Spike feet (w/ locking nut attached)
- 4 Protective discs
- 4 Rubber feet
- Port plug
- Manual
- ATTENTION! note
What's in the Box of Klipsch R-610F?
Here are the items that come with the R-610F:
- Floorstanding loudspeaker
- Grille (installed)
- 2 Feet
- 4 Screws
- Quick Setup Guide
- Important Safety Instructions
- Warranty Information
- Loudspeaker Feet note
 Max Input Power |
225 watts
vs
85 watts
|
Handle more power from your amplifier |
 Number of Woofers |
2
vs
1
|
More woofers |
|
Low Frequency Response |
28 Hz
vs
45 Hz
|
Generates deeper bass |
 High Frequency Response |
23k Hz
vs
21k Hz
|
Generates higher frequency |
 Base Surface Area |
805cm2
vs
881cm2
|
Takes less floor space |
 Height |
942mm
vs
1026mm
|
Easier to fit in smaller spaces |
 Price per pair* |
778USD
vs
1000USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
KLH Concord |
Klipsch Reference R-610F |
| Brand |
KLH |
Klipsch |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 225 watts |
up to 85 watts |
| Sensitivity |
94 dB |
94 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
28-23k Hz |
45-21k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
1 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Kevlar |
Copper-spun IMG |
| Woofer Surround Material |
Butyl Rubber |
Rubber |
| Tweeter Size |
1" |
1.0" |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
1026.0mm (40.4") |
942.0mm (37.1") |
| Width |
212.0mm (8.3") |
239.0mm (9.4") |
| Depth |
380.0mm (15") |
369.0mm (14.5") |
| Weight |
20.45kg (45lbs) |
16.36kg (36lbs) |
| 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 |
No |
Other |
|
|
| Parts Warranty |
10 Years |
5 Years |
| Labor Warranty |
10 Years |
5 Years |
A generation apart: KLH Concord is the newer design, against a 2018 model. Newer is not automatically better, but the older one is more likely to be discounted or near run-out.
| Area | Better | Why |
|---|
| Bass | A | KLH Concord digs deeper - 28Hz against 45Hz. |
| Amplifier needs | evenly matched | Similar sensitivity (94dB vs 94dB) - both want much the same power. |
| Headroom | A | KLH Concord takes more power (225W vs 85W) - more in hand in a big room. |
| Size | depends | Similar cabinet size - neither is easier to fit. |
| Price | B | Klipsch R-610F is cheaper - $778 against $1,000, about 22% less. |
A KLH Concord B Klipsch R-610F
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?
The usual trade-off: KLH Concord measures better, Klipsch R-610F costs about about 29% more% less. Whether that gap is worth the money is the call only you can make - and in a normal room it is often smaller than the numbers suggest. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 45Hz anyway, which makes the cheaper Klipsch R-610F much easier to justify.
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.