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Monitor Audio CS140 vs Klipsch R-5650-S II Comparison

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Monitor Audio CS140

Passive In-wall | 75-30kHz

Monitor Audio CS140
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Klipsch R-5650-S II

Passive In-wall | 60-23kHz

Klipsch R-5650-S II
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Monitor Audio CS140 Monitor Audio CS140
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Klipsch R-5650-S II Klipsch R-5650-S II
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Monitor Audio CS140
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Klipsch R-5650-S II
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Monitor Audio CS140 vs Klipsch R-5650-S II Speaker Comparison

In this review, we will be comparing CS140 and R-5650-S II, two Passive In-wall speakers from Monitor Audio and Klipsch.

Let's have a brief look at the main features of Monitor Audio CS140 and Klipsch R-5650-S II first before getting into our more detailed comparison.

Monitor Audio CS140 Key Specs

  • 2-way Design
  • 1" Hard-Dome Tweeter
  • 4" Metal Matrix Polymer Woofer
  • 75-30kHz Frequency Response
  • 85 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:10-50watts
  • Dimensions (H x W x D): 150.0" x 5.8750" x 3.9375"( 150.0 x 150.0 x 101.0mm )

Klipsch R-5650-S II Key Specs

  • 2-way Design
  • 1" Horn-loaded dome Tweeter
  • 6.5" Cerametallic Woofer
  • 60-23kHz Frequency Response
  • 92 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:up to 50watts
  • Dimensions (H x W x D): 331.0" x 8.0000" x 3.6875"( 331.0 x 204.0 x 94.0mm )

What size room are the Monitor Audio CS140 and Klipsch R-5650-S II 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* Monitor Audio CS140 Klipsch R-5650-S II
Near-field Good Good
Small Room Good Good
Mid-size Room Average Average
Large Room Poor Poor
Very Large Room No way 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 Monitor Audio CS140 and Klipsch R-5650-S II 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 CS140 and R-5650-S II are 2-way speakers.

Driver Monitor Audio CS140 Klipsch R-5650-S II
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 4-inch 1 x 6.5-inch

CS140 features a 1" Hard-Dome Tweeter and 1 x 4" Metal Matrix Polymer Woofer . On the other hand, the R-5650-S II features a 1" Horn-loaded dome Tweeter and 1 x 6.5" Cerametallic Woofer .

Frequency Response

CS140 has a frequency range of 75-30kHz whereas R-5650-S II has a frequency range of 60-23kHz. With a minimum frequency of 60Hz, the R-5650-S II can go significantly deeper on the low side and provide stronger bass compared to the CS140's min frequency of 75Hz.

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 In-wall class in our database.

Low Frequency

In-wall Speakers

CS140
R-5650-S II
Min
Average
Max
High Frequency

In-wall Speakers

Monitor Audio CS140
Klipsch R-5650-S II
Min
Average
Max

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

CS140 is a 6 ohms speaker compared to the R-5650-S II which has a nominal impedance of 8 ohms.

These two speakers also have different sensitivity levels. CS140 sensitivity is rated at 85 dB and the R-5650-S II's is rated at 92 dB. This 7 dB difference makes the Klipsch R-5650-S II a more sensitive speaker compared to Monitor Audio CS140, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

CS140
R-5650-S II
Min
Average
Max

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.

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

CS140 features Spring Posts type posts and R-5650-S II has a Spring Posts type posts. None of these speakers feature bi-amping/bi-wiring.

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 Monitor Audio CS140's and Klipsch R-5650-S II's external dimensions. Monitor Audio CS140 has external dimensions of 150.0 x 150.0 x 101.0mm ( 5.8750-inch x 5.8750-inch x 3.9375-inch) whereas Klipsch R-5650-S II has external dimensions of 331.0 x 204.0 x 94.0mm ( 13.0000-inch x 8.0000-inch x 3.6875-inch) .

Monitor Audio CS140 is 54mm narrower and 181mm shorter than Klipsch R-5650-S II but it is also 7mm deeper.

What's in the Box of Monitor Audio CS140?

Here are the items that are included inside the box of CS140:
  • In-ceiling speaker
  • Grille
  • Paint skim
  • Installation Guide
  • Important Safety Instructions
  • Cutout Template
  • What's in the Box of Klipsch R-5650-S II?

    Here are the items that come with the R-5650-S II:
  • In-wall speaker
  • White metal mesh grille
  • Cardboard template
  • Owners Manual (En/Fr/Sp)

  • Reasons to choose Monitor Audio CS140 over Klipsch R-5650-S II
    High Frequency Response 30k Hz vs 23k Hz Generates higher frequency
    Height 150mm vs 331mm Easier to fit in smaller spaces
    Base Surface Area 151cm2 vs 191cm2 Takes less floor space
    Price per pair* 440USD vs 458USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Klipsch R-5650-S II over Monitor Audio CS140

    Sensitivity 92 dB vs 85 dB Play louder with same amount of amplification power
    Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
    Woofer Size 6.5 inches vs 4 inches Larger woofer
    Low Frequency Response 60 Hz vs 75 Hz Generates deeper bass
    Monitor Audio CS140 vs Klipsch R-5650-S II Specs Table
    Detailed comparison of specifications
    General Monitor Audio CS140 Klipsch R-5650-S II
    Brand Monitor Audio Klipsch
    Speaker Type Passive In-wall Speaker Passive In-wall Speaker
    Power Range 10-50 watts up to 50 watts
    Sensitivity 85 dB 92 dB
    Impedance 6 ohms 8 ohms
    Frequency Response 75-30kHz 60-23kHz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 4" 6.5"
    Woofer Composition Metal Matrix Polymer Cerametallic
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type Hard-Dome Horn-loaded dome
    Aimable Tweeter Yes No
    Midrange Driver N/A" N/A"
    Physical Specs
    Height 150.0mm (5.9") 331.0mm (13")
    Width 150.0mm (5.9") 204.0mm (8")
    Depth 101.0mm (4") 94.0mm (3.7")
    Enclosure In-wall In-wall
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty Lifetime Ltd. Lifetime
    Labor Warranty Lifetime Ltd. Lifetime

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