In this review, we will be comparing C 91 II and R-41M, two Passive Bookshelf speakers from Jamo and Klipsch.
Let's have a brief look at the main features
of Jamo C 91 II and Klipsch R-41M first before getting into our more
detailed comparison.
Jamo C 91 II Key Specs
- 2-way Design
- 1" Soft-Dome Tweeter
- 4" Composite Woofer
- 65-24k Hz Frequency Response
- 86 dB Sensitivity
- Impedance: 6ohms
- Power Range:50-100watts
- Weight:4.10kg
- Dimensions (H x W x D): 265.0" x 6.7" x 7.5"( 265.0 x 171.0 x 191.0mm )
Klipsch R-41M Key Specs
- 2-way Design
- 1" Tractrix Horn Tweeter
- 4" Copper-spun IMG Woofer
- 68-21k Hz Frequency Response
- 90 dB Sensitivity
- Impedance: 8ohms
- Power Range:50watts
- Weight:3.20kg
- Dimensions (H x W x D): 287.0" x 5.7" x 7.8"( 287.0 x 146.0 x 200.0mm )
What size room are the Jamo C 91 II and Klipsch R-41M 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* |
Jamo C 91 II |
Klipsch R-41M |
| Near-field |
Average |
Good |
| Small Room |
Good |
Good |
| Mid-size Room |
Average |
Average |
| Large Room |
Poor |
Poor |
| Very Large Room |
Bad |
No way |
(* 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.)
In the following sections, we will get into more detail in order to better understand how the Jamo C 91 II and Klipsch R-41M 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
Both C 91 II and R-41M are 2-way speakers.
| Driver |
Jamo C 91 II |
Klipsch R-41M |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
1-inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 4-inch
|
1 x 4-inch
|
C 91 II features a 1" Soft-Dome Tweeter and 1 x 4" Composite Woofer . On the other hand, the R-41M features a 1" Tractrix Horn Tweeter and 1 x 4" Copper-spun IMG Woofer with a Crossover frequency at 1730Hz.
Frequency Response
C 91 II has a frequency range of 65-24k Hz whereas R-41M has a frequency range of 68-21k Hz. With a minimum frequency of 65Hz, the C 91 II can go slightly deeper then the R-41M's min frequency of 68Hz.
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 Bookshelf class in our database.
Low Frequency
Bookshelf Speakers
High Frequency
Bookshelf 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
C 91 II is a 6 ohms speaker compared to the R-41M which has a nominal impedance of 8 ohms.
These two speakers also have different sensitivity levels. C 91 II sensitivity is rated at 86 dB and the R-41M's is rated at 90 dB. This 4 dB difference makes the Klipsch R-41M a more sensitive speaker compared to Jamo C 91 II, hence will play louder with the same amount of watts.
Sensitivity
Bookshelf 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.
C 91 II can handle a max power of 100 watts RMS from the amp the whereas R-41M has a max power handling value of 50 watts RMS, 50 watts less than the C 91 II.
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
C 91 II features Single Gold Plated Binding Posts type posts and R-41M has a Single Gold Plated Binding Posts type posts. None of these speakers feature bi-amping/bi-wiring.
Jamo C 91 II's 5-way post terminals
Klipsch R-41M's Single Gold Plated Binding Posts terminals
Cabinet Type and Port Position
Both C 91 II and R-41M have rear firing ports. Rear ported speakers generally need more room between the backside of the speaker and the wall compared to sealed and front/bottom ported speakers. Placing the speakers too close to the walls may cause the bass to sound boomy.
If you are limited in space and can't get the speakers away from the backwall, check our Speakers with Front Firing Ports page.
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 Jamo C 91 II's and Klipsch R-41M's external dimensions. Jamo C 91 II has external dimensions of 265.0 x 171.0 x 191.0mm ( 10.4 x 6.7 x 7.5inch) whereas Klipsch R-41M has external dimensions of 287.0 x 146.0 x 200.0mm ( 11.2 x 5.7 x 7.8inch) .
Jamo C 91 II is 22mm shorter and 9mm less deeper than Klipsch R-41M but it is also 25mm wider.
Below you can see the front view size comparison of Jamo C 91 II and Klipsch R-41M in scale.
Comparison image of Jamo C 91 II and Klipsch R-41M 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 Jamo C 91 II is approximately 326.6cm2 / 50.6inch2 and base area of the Klipsch R-41M is approximately 292.0cm2 / 45.3inch2. The C 91 II requires 12% more surface area than the R-41M which gives it a small disadvantage on placement in tight spaces.
Here is an another comparison that shows both speakers on a BDI Octave Media Cabinet, next to a standard size amplifier and turntable in scale:
Size Comparison image of Jamo C 91 II and Klipsch R-41M on a Media Console
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 Jamo C 91 II weighs 4.10kg / 9lbs and the Klipsch R-41M weighs 3.20kg / 7lbs. This makes the C 91 II 28% heavier than the R-41M.
Here is a comparison of how C 91 II and R-41M's weights compare with the average, max and min weights in Passive Bookshelf class.
Weight
All Bookshelf Speakers
What's in the Box of Jamo C 91 II?
Here are the items that are included inside the box of C 91 II:
2 Bookshelf loudspeakers 2 Grilles 8 Self-adhesive rubber feet 4 Self-adhesive rubber bumpers User Manual Important Safety Instructions Warranty Information
What's in the Box of Klipsch R-41M?
Here are the items that come with the R-41M:
2 Bookshelf loudspeakers 2 Grilles (installed) 8 Self-adhesive rubber feet Quick Setup Guide Important Safety Instructions Warranty Information
 Max Input Power |
100 watts
vs
50 watts
|
Handle more power from your amplifier |
 Low Frequency Response |
65 Hz
vs
68 Hz
|
Generates deeper bass |
 High Frequency Response |
24k Hz
vs
21k Hz
|
Generates higher frequency |
 Height |
265mm
vs
287mm
|
Easier to fit in smaller spaces |
 Sensitivity |
90 dB
vs
86 dB
|
Play louder with same amount of amplification power |
 Nominal Impedance |
8 ohms
vs
6 ohms
|
Less selective with amplifiers |
 Base Surface Area |
292cm2
vs
326cm2
|
Takes less floor space |
 Price per pair* |
229USD
vs
459USD
|
costs less (*prices may change depending on the seller, location and time) |
| General |
Jamo Concert 9 Series C 91 II |
Klipsch Reference R-41M |
| Brand |
Jamo |
Klipsch |
| Speaker Type |
Bookshelf speakers |
Bookshelf speakers |
| Power Range |
50-100 watts |
50 watts |
| Sensitivity |
86 dB |
90 dB |
| Impedance |
6 ohms |
8 ohms |
| Frequency Response |
65-24k Hz |
68-21k Hz |
Drivers |
|
|
| Woofer Quantity |
1 |
1 |
| Woofer Size |
4" |
4" |
| Woofer Composition |
Composite |
Copper-spun IMG |
| Woofer Surround Material |
Rubber |
Rubber |
| Tweeter Size |
1" |
1" |
| Tweeter Type |
Soft-Dome |
Tractrix Horn |
| Aimable Tweeter |
No |
No |
| Midrange Driver |
No |
No |
| Crossover Frequency |
n/a |
1730Hz |
| Firing Direction |
rear |
rear |
Physical Specs |
|
|
| Height |
265.0mm (10.4") |
287.0mm (11.3") |
| Width |
171.0mm (6.7") |
146.0mm (5.7") |
| Depth |
191.0mm (7.5") |
200.0mm (7.9") |
| Weight |
4.10kg (9lbs) |
3.20kg (7lbs) |
| Enclosure |
Bass Reflex |
Bass Reflex |
| Finish |
MDF/Wood-grain |
MDF/Wood-grain vinyl |
| Available Colors |
White Oak,Black Ash |
Black |
| Mounting Bracket |
Keyhole |
Keyhole |
| Recommended Stand Height |
28-32" |
26-31" |
| Grille |
Yes |
Yes |
| Moisture Resistancy |
No |
No |
Connections |
|
|
| Biamp Inputs |
No |
No |
Other |
|
|
| Parts Warranty |
5 Years |
5 Years |
| Labor Warranty |
5 Years |
5 Years |