In this review, we will be comparing Concord and RP-6000F, two Passive Floor-standing speakers from KLH and Klipsch.
Let's have a brief look at the main features
of KLH Concord and Klipsch RP-6000F first before getting into our more
detailed comparison.
| Key Specs | KLH Concord | Klipsch RP-6000F |
|---|
| Brand | KLH
United States · founded 1957 | Klipsch
United States · founded 1946 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" | 1" Tractrix Horn |
|---|
| Woofer | 2 x 6.5" Kevlar | 2 x 6.5" Cerametallic |
|---|
| Frequency response | 28-23k Hz | 34-25k Hz |
|---|
| Sensitivity | 94 dB | 97 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | up to 225 watts | up to 125 watts |
|---|
| Weight | 20.45kg / 45lbs | 22.27kg / 49lbs |
|---|
| 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 | 39-3/4" x 9-5/16" x 17"
1010.0 x 237.0 x 432.0mm |
|---|
The sections below take each area in turn: drivers, frequency response, physical size and what you get in the box.
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Drivers
Both Concord and RP-6000F are 2-way speakers.
KLH ConcordKlipsch RP-6000F
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 RP-6000F |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
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 RP-6000F features a 1" Tractrix Horn Tweeter and 2 x 6.5" Cerametallic Woofer.
Frequency Response
Concord has a frequency range of 28-23k Hz whereas RP-6000F has a frequency range of 34-25k Hz. With a minimum frequency of 28Hz, the Concord can go significantly deeper on the low side and provide stronger bass compared to the RP-6000F's min frequency of 34Hz.
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 RP-6000F have the same Impedance of 8 ohms but where they differ is the sensitivity levels. Concord sensitivity is rated at 94 dB and the RP-6000F's is at 97 dB. This 3 dB difference makes the Klipsch RP-6000F a more sensitive speaker compared to KLH Concord, 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. 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 RP-6000F has a max power handling value of 125 watts RMS, 100 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
RP-6000F features 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
Klipsch RP-6000F's Post terminals allows Bi-amping or bi-wiring
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 RP-6000F'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 RP-6000F has external dimensions of 1010.0 x 237.0 x 432.0mm (39-3/4 x 9-5/16 x 17inch).
KLH Concord is 25mm narrower and 52mm less deeper than Klipsch RP-6000F but it is also 16mm taller.
Below you can see the front view size comparison of KLH Concord and Klipsch RP-6000F in scale.
Comparison image of KLH Concord and Klipsch RP-6000F 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 RP-6000F is approximately 1023.8cm2 / 158.7inch2. The Concord requires 21% less surface area than the RP-6000F 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 RP-6000F weighs 22.27kg / 49lbs. This makes the RP-6000F 9% heavier than the Concord.
Here is a comparison of how Concord and RP-6000F'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 RP-6000F?
Here are the items that come with the RP-6000F:
- Floorstanding loudspeaker
- Stabilizer feet (installed)
- Grille (installed)
- 2 Terminal jumpers (installed)
- User Manual
- Important Safety Instructions
- Warranty Information
 Max Input Power |
225 watts
vs
125 watts
|
Handle more power from your amplifier |
 Low Frequency Response |
28 Hz
vs
34 Hz
|
Generates deeper bass |
 Base Surface Area |
805cm2
vs
1023cm2
|
Takes less floor space |
 Price per pair* |
1000USD
vs
1378USD
|
costs less (*prices may change depending on the seller, location and time) |
 Sensitivity |
97 dB
vs
94 dB
|
Play louder with same amount of amplification power |
 High Frequency Response |
25k Hz
vs
23k Hz
|
Generates higher frequency |
 Bi-Amping and Bi-Wiring |
Yes
vs
No
|
Allows bi-amping and bi-wiring connections |
 Height |
1010mm
vs
1026mm
|
Easier to fit in smaller spaces |
| General |
KLH Concord |
Klipsch Reference Premiere RP-6000F |
| Brand |
KLH |
Klipsch |
| Speaker Type |
Floor-standing speaker |
Floor-standing speaker |
| Power Range |
up to 225 watts |
up to 125 watts |
| Sensitivity |
94 dB |
97 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
28-23k Hz |
34-25k Hz |
Drivers |
|
|
| Woofer Quantity |
2 |
2 |
| Woofer Size |
6.5" |
6.5" |
| Woofer Composition |
Kevlar |
Cerametallic |
| Woofer Surround Material |
Butyl Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
n/a |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Firing Direction |
n/a |
rear |
Physical Specs |
|
|
| Height |
1026.0mm (40.4") |
1010.0mm (39.8") |
| Width |
212.0mm (8.3") |
237.0mm (9.3") |
| Depth |
380.0mm (15") |
432.0mm (17") |
| Weight |
20.45kg (45lbs) |
22.27kg (49lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
MDF/Wood-grain vinyl |
| Available Colors |
Black |
Walnut, 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 |
No single best speaker here - they are built to different priorities, and the right one depends on your room, your amplifier and what you listen to.
| Area | Better | Why |
|---|
| Bass | A | KLH Concord digs deeper - 28Hz against 34Hz. A subwoofer would even that out. |
| Amplifier needs | B | Klipsch RP-6000F is more sensitive (97dB vs 94dB), so it goes louder on the same amplifier. |
| Headroom | A | KLH Concord takes more power (225W vs 125W) - more in hand in a big room. |
| Size | depends | KLH Concord is easier to place; Klipsch RP-6000F is bigger, which usually goes with fuller bass. Your room decides. |
| Expandability | B | Klipsch RP-6000F: bi-amping. |
| Price | A | KLH Concord is cheaper - $1,000 against $1,378, about 27% less. |
A KLH Concord B Klipsch RP-6000F
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?
Neither runs away with it - they trade advantages. Let the "depends" rows and your own room settle it. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 34Hz anyway, so judge these on the other rows instead. If your amplifier is modest, vintage or valve-based, Klipsch RP-6000F is the safer partner - the other will want more current or more watts to sound its best.
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.