In this review, we will be comparing R-34C and R-25C, two Passive Center Channel speakers by Klipsch.
Let's have a brief look at the main features
of Klipsch R-34C and Klipsch Reference R-25C first before getting into our more
detailed comparison.
| Key Specs | Klipsch R-34C | Klipsch Reference R-25C |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" Tractrix horn | Tractrix Horn |
|---|
| Woofer | 4 x 3.5" copper spun IMG | 2 x 5.25" Copper spun |
|---|
| Frequency response | 82-21k Hz | 82-24K Hz |
|---|
| Sensitivity | 96 dB | 98 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | up to 100 watts | up to 100 watts |
|---|
| Weight | 5.91kg / 13lbs | 6.70kg / 14.7lbs |
|---|
| Dimensions (H x W x D) | 4-15/16" x 26-1/16" x 6-1/4"
126.0 x 662.0 x 159.0mm | 7.25" x 18.75" x 7.25"
184 x 476 x 184mm |
|---|
R-34C and R-25C are members of Klipsch's Reference (R) Center series of speakers. Below you can find the loudspeakers from this series.
Klipsch Reference (R) Center Series
History
What size room are the Klipsch R-34C and Klipsch Reference R-25C speakers good for?
The size of the room in which you are planning to use these loudspeakers is an important decision
factor. Here we have compared their suitability to various sizes of environments considering their size
and max power parameters:
| Listening Environment* |
Klipsch R-34C |
Klipsch Reference R-25C |
| Near-field |
Average |
Poor |
| Small Room |
Good |
Average |
| Mid-size Room |
Average |
Good |
| Large Room |
Poor |
Average |
| Very Large Room |
Bad |
Poor |
(* Approximate Room sizes: Small < 100sq. ft / 9 m2,
Mid-size: 100-220 sq. ft / 9-20 m2, Large 220-400 sq. ft / 20-36 m2, Very Large: >
400 sq. ft / 36 m2.
Average Floor Height: 9" / 2.7m. Typical room sizes differ from country to country, and the actual
listening experience changes depending on floor height, room shape, surface materials, listening
position, speaker locations, etc.)
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 R-34C and R-25C are 2-way speakers.
Klipsch R-34CKlipsch Reference R-25C
TweeterWoofer
Front view, drawn to scale - cabinets and drivers share one scale, so sizes are directly comparable. Hover a driver for its size.
| Driver |
Klipsch R-34C |
Klipsch Reference R-25C |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
4 x 3.5-inch
|
2 x 5.25-inch
|
R-34C features a 1" aluminum Tractrix horn Tweeter and 4 x 3.5" copper spun IMG Woofer. On the other hand, the R-25C features a " LTS (Linear Travel Suspension) aluminum diaphragm Tractrix Horn Tweeter and 2 x 5.25" Copper spun Woofer with a Crossover frequency at 1800 Hz.
Frequency Response
R-34C has a frequency range of 82-21k Hz whereas R-25C has a frequency range of 82-24K Hz.
The graph below depicts how these two speakers compare with the max, min and average Low Frequency values of other speakers in the Center Channel class in our database.
Low Frequency
Center Channel 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
R-34C and R-25C have the same Impedance of 8 ohms but where they differ is the sensitivity levels. R-34C sensitivity is rated at 96 dB and the R-25C's is at 98 dB. This 2 dB difference makes the Klipsch Reference R-25C a more sensitive speaker compared to Klipsch R-34C, hence will play louder with the same amount of watts.
Sensitivity
Center Channel 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.
R-34C and R-25C have the same power range of up to 100 watts.
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
R-34C features Binding post type posts and R-25C has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
Klipsch R-34C's Binding post terminals
Klipsch Reference R-25C's Binding post terminals
New
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 Klipsch R-34C's and Klipsch Reference R-25C's external dimensions. Klipsch R-34C has external dimensions of 126.0 x 662.0 x 159.0mm (4-15/16 x 26-1/16 x 6-1/4inch) whereas Klipsch Reference R-25C has external dimensions of 184 x 476 x 184mm (7.25 x 18.75 x 7.25-inch).
Klipsch R-34C is 58mm shorter and 25mm less deeper than Klipsch Reference R-25C but it is also 186mm wider.
Below you can see the front view size comparison of Klipsch R-34C and Klipsch Reference R-25C in scale.
Comparison image of Klipsch R-34C and Klipsch Reference R-25C 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 Klipsch R-34C is approximately 1052.6cm2 / 163.2inch2 and base area of the Klipsch Reference R-25C is approximately 876.0cm2 / 135.8inch2. The R-34C requires 20% more surface area than the R-25C 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 Klipsch R-34C weighs 5.91kg / 13lbs and the Klipsch Reference R-25C weighs 6.70kg / 14.7lbs. This makes the R-25C 13% heavier than the R-34C.
Here is a comparison of how R-34C and R-25C's weights compare with the average, max and min weights in Passive Center Channel class.
Weight
All Center Channel Speakers
What's in the Box of Klipsch R-34C?
Here are the items that are included inside the box of R-34C:
- Center-channel loudspeaker
- Grille (installed)
- 8 Self-adhesive rubber feet
- Quick Setup Guide
- Important Safety Instructions
- Warranty Information
What's in the Box of Klipsch Reference R-25C?
Here are the items that come with the R-25C:
- Center-channel loudspeaker
- Grille
- User Manual
- Important Safety Instructions
- Warranty Information
 Number of Woofers |
4
vs
2
|
More woofers |
 Height |
126mm
vs
184mm
|
Easier to fit in smaller spaces |
 Sensitivity |
98 dB
vs
96 dB
|
Play louder with same amount of amplification power |
|
Woofer Size |
5.25 inches
vs
3.5 inches
|
Larger woofer |
 High Frequency Response |
24k Hz
vs
21k Hz
|
Generates higher frequency |
 Base Surface Area |
876cm2
vs
1052cm2
|
Takes less floor space |
| General |
Klipsch Reference R-34C |
Klipsch Reference R-25C |
| Brand |
Klipsch |
Klipsch |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
up to 100 watts |
up to 100 watts |
| Sensitivity |
96 dB |
98 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
82-21k Hz |
82-24K Hz |
Drivers |
|
|
| Woofer Quantity |
4 |
2 |
| Woofer Size |
3.5" |
5.25" |
| Woofer Composition |
copper spun IMG |
Copper spun |
| Tweeter Size |
1" |
- |
| Tweeter Type |
Tractrix horn |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
1800 Hz |
Physical Specs |
|
|
| Height |
126.0mm (5") |
184.0mm (7.2") |
| Width |
662.0mm (26.1") |
476.0mm (18.7") |
| Depth |
159.0mm (6.3") |
184.0mm (7.2") |
| Weight |
5.91kg (13lbs) |
6.70kg (14.7lbs) |
| Enclosure |
Bass Reflex |
Sealed |
| Finish |
textured wood grain viny |
Polymer Veneer |
| Available Colors |
Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
n/a |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
Siblings in Klipsch's Reference (R) Center series, so they share a family sound. It comes down to size, output and price.
| Area | Better | Why |
|---|
| Bass |
evenly matched |
Much the same reach (82Hz vs 82Hz). |
| Amplifier needs |
B |
Klipsch Reference R-25C is more sensitive (98dB vs 96dB), so it goes louder on the same amplifier. |
| Headroom |
evenly matched |
Similar power handling (100W vs 100W). |
| Size |
depends |
Similar cabinet size - neither is easier to fit. |
| Cabinet |
depends |
Ported vs Sealed. Sealed is tighter and happier near a wall; ported digs lower but wants space behind it. |
A Klipsch R-34C
B Klipsch Reference R-25C
depends neither is better in the abstract - it turns on your room, placement 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?
Klipsch Reference R-25C has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. Match it to your room: we rate Klipsch R-34C the better fit for near-field listening and a small room, and Klipsch Reference R-25C for a mid-size room and a large room. If your amplifier is modest, vintage or valve-based, Klipsch Reference R-25C 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.