In this review, we will be comparing RP-404C II and R-34C, two Passive Center Channel speakers by Klipsch.
Let's have a brief look at the main features
of Klipsch RP-404C II and Klipsch R-34C first before getting into our more
detailed comparison.
| Key Specs | Klipsch RP-404C II | Klipsch R-34C |
|---|
| Brand | Klipsch
United States · founded 1946 | Klipsch
United States · founded 1946 |
|---|
| Design | 2-way | 2-way |
|---|
| Tweeter | 1" Tractrix Horn | 1" Tractrix horn |
|---|
| Woofer | 4 x 4" Cerametallic cone | 4 x 3.5" copper spun IMG |
|---|
| Frequency response | 87-25k Hz | 82-21k Hz |
|---|
| Sensitivity | 94 dB | 96 dB |
|---|
| Impedance | 8 ohms | 8 ohms |
|---|
| Power range | up to 125 watts | up to 100 watts |
|---|
| Weight | 9.20kg / 20.2lbs | 5.91kg / 13lbs |
|---|
| Dimensions (H x W x D) | 5-3/4" x 26-7/8" x 6-1/2"
147.0 x 683.0 x 166.0mm | 4-15/16" x 26-1/16" x 6-1/4"
126.0 x 662.0 x 159.0mm |
|---|
What size room are the Klipsch RP-404C II and Klipsch R-34C 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 RP-404C II |
Klipsch R-34C |
| Near-field |
Poor |
Average |
| Small Room |
Average |
Good |
| Mid-size Room |
Good |
Average |
| Large Room |
Average |
Poor |
| Very Large Room |
Poor |
Bad |
(* 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.
Drivers
Both RP-404C II and R-34C are 2-way speakers.
Klipsch RP-404C IIKlipsch R-34C
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 RP-404C II |
Klipsch R-34C |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
4 x 4-inch
|
4 x 3.5-inch
|
RP-404C II features a 1" titanium Tractrix Horn Tweeter and 4 x 4" Cerametallic cone Woofer with a Crossover frequency at 1900 Hz. On the other hand, the R-34C features a 1" aluminum Tractrix horn Tweeter and 4 x 3.5" copper spun IMG Woofer.
Frequency Response
RP-404C II has a frequency range of 87-25k Hz whereas R-34C has a frequency range of 82-21k Hz. With a minimum frequency of 82Hz, the R-34C can go significantly deeper on the low side and provide stronger bass compared to the RP-404C II's min frequency of 87Hz.
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
RP-404C II and R-34C have the same Impedance of 8 ohms but where they differ is the sensitivity levels. RP-404C II sensitivity is rated at 94 dB and the R-34C's is at 96 dB. This 2 dB difference makes the Klipsch R-34C a more sensitive speaker compared to Klipsch RP-404C II, 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.
RP-404C II can handle a max power of 125 watts RMS, whereas R-34C has a max power handling value of 100 watts RMS, 25 watts less than the RP-404C II.
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-404C II features Binding post type posts and R-34C has a Binding post type posts. None of these speakers feature bi-amping/bi-wiring.
Klipsch RP-404C II's Binding post terminals
Klipsch R-34C's Binding 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 Klipsch RP-404C II's and Klipsch R-34C's external dimensions. Klipsch RP-404C II has external dimensions of 147.0 x 683.0 x 166.0mm (5-3/4 x 26-7/8 x 6-1/2inch) whereas 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).
Klipsch RP-404C II is clearly the larger of the two speakers. Its body is 21mm wider, 21mm taller and 7mm deeper than Klipsch R-34C.
Below you can see the front view size comparison of Klipsch RP-404C II and Klipsch R-34C in scale.
Comparison image of Klipsch RP-404C II and Klipsch R-34C 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 RP-404C II is approximately 1133.8cm2 / 175.7inch2 and base area of the Klipsch R-34C is approximately 1052.6cm2 / 163.2inch2. The RP-404C II requires 8% more surface area than the R-34C 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 RP-404C II weighs 9.20kg / 20.2lbs and the Klipsch R-34C weighs 5.91kg / 13lbs. This makes the RP-404C II 56% heavier than the R-34C.
Here is a comparison of how RP-404C II and R-34C'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 RP-404C II?
Here are the items that are included inside the box of RP-404C II:
- Center channel loudspeaker
- Grille
- User Manual
- Important Safety Instructions
- Warranty Information
What's in the Box of Klipsch R-34C?
Here are the items that come with the R-34C:
- Center-channel loudspeaker
- Grille (installed)
- 8 Self-adhesive rubber feet
- Quick Setup Guide
- Important Safety Instructions
- Warranty Information
 Max Input Power |
125 watts
vs
100 watts
|
Handle more power from your amplifier |
 Woofer Size |
4 inches
vs
3.5 inches
|
Larger woofer |
 High Frequency Response |
25k Hz
vs
21k Hz
|
Generates higher frequency |
 Sensitivity |
96 dB
vs
94 dB
|
Play louder with same amount of amplification power |
|
Low Frequency Response |
82 Hz
vs
87 Hz
|
Generates deeper bass |
 Height |
126mm
vs
147mm
|
Easier to fit in smaller spaces |
 Base Surface Area |
1052cm2
vs
1133cm2
|
Takes less floor space |
 Price per pair* |
499USD
vs
599USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Klipsch Reference Premiere RP-404C II |
Klipsch Reference R-34C |
| Brand |
Klipsch |
Klipsch |
| Speaker Type |
Center channel speaker |
Center channel speaker |
| Power Range |
up to 125 watts |
up to 100 watts |
| Sensitivity |
94 dB |
96 dB |
| Impedance |
8 ohms |
8 ohms |
| Frequency Response |
87-25k Hz |
82-21k Hz |
Drivers |
|
|
| Woofer Quantity |
4 |
4 |
| Woofer Size |
4" |
3.5" |
| Woofer Composition |
Cerametallic cone |
copper spun IMG |
| Woofer Surround Material |
Rubber |
n/a |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Tractrix Horn |
Tractrix horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
1900 Hz |
n/a |
Physical Specs |
|
|
| Height |
147.0mm (5.8") |
126.0mm (5") |
| Width |
683.0mm (26.9") |
662.0mm (26.1") |
| Depth |
166.0mm (6.5") |
159.0mm (6.3") |
| Weight |
9.20kg (20.2lbs) |
5.91kg (13lbs) |
| Enclosure |
Acoustic Suspension |
Bass Reflex |
| Finish |
MDF/Wood-grain vinyl |
textured wood grain viny |
| Available Colors |
Walnut, Black |
Black |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
n/a |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |
A generation apart: Klipsch RP-404C II 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 | B | Klipsch R-34C digs deeper - 82Hz against 87Hz. A subwoofer would even that out. |
| Amplifier needs | B | Klipsch R-34C is more sensitive (96dB vs 94dB), so it goes louder on the same amplifier. |
| Headroom | A | Klipsch RP-404C II takes more power (125W vs 100W) - more in hand in a big room. |
| Size | depends | Klipsch R-34C is easier to place; Klipsch RP-404C II is bigger, which usually goes with fuller bass. Your room decides. |
| Cabinet | depends | Sealed vs Ported. Sealed is tighter and happier near a wall; ported digs lower but wants space behind it. |
| Expandability | depends | Neither adds bi-amping, a sub output or height drivers. Klipsch RP-404C II sits in a wider range (10 models), so a matched surround system is easier later. |
| Price | B | Klipsch R-34C is cheaper - $499 against $599, about 17% less. |
A Klipsch RP-404C II B Klipsch R-34C
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?
Klipsch R-34C has the edge on paper, though the margin is not large. The rows marked "depends" may matter more to you than the score does. If a subwoofer is in your plans, the bass gap largely stops mattering - you would be crossing over above 87Hz anyway, so judge these on the other rows instead. Match it to your room: we rate Klipsch RP-404C II the better fit for a mid-size room and a large room, and Klipsch R-34C for near-field listening and a small room.
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.