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Monitor Audio W265 vs B&W CWM663 Comparison

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Monitor Audio W265

Passive In-wall | 55-30kHz

Monitor Audio W265
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B&W CWM663

Passive In-wall | 45-50kHz

Bowers & Wilkins Performance Series CWM663
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Monitor Audio W265 Monitor Audio W265
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B&W CWM663 B&W CWM663
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Monitor Audio W265
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B&W CWM663
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Monitor Audio W265 vs B&W CWM663 Speaker Comparison

In this review, we will be comparing W265 and CWM663, two Passive In-wall speakers from Monitor Audio and Bowers Wilkins.

Let's have a brief look at the main features of Monitor Audio W265 and B&W CWM663 first before getting into our more detailed comparison.

Monitor Audio W265 Key Specs

  • 2-way Design
  • 1" Hard-Dome Tweeter
  • 6.5" C-CAM Woofer
  • 55-30kHz Frequency Response
  • 88.5 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:20-65watts
  • Dimensions (H x W x D): 332.0" x 8.3750" x 3.6250"( 332.0 x 213.0 x 93.0mm )

B&W CWM663 Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 6" Kevlar Woofer
  • 45-50kHz Frequency Response
  • 88 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:25-150watts
  • Dimensions (H x W x D): 280.0" x 7.2500" x 3.7500"( 280.0 x 185.0 x 96.0mm )

What size room are the Monitor Audio W265 and B&W CWM663 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 W265 B&W CWM663
Near-field Good Poor
Small Room Good Average
Mid-size Room Average Good
Large Room Poor Average
Very Large Room No way 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.)

In the following sections, we will get into more detail in order to better understand how the Monitor Audio W265 and B&W CWM663 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 W265 and CWM663 are 2-way speakers.

Driver Monitor Audio W265 B&W CWM663
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 6.5-inch 1 x 6-inch

W265 features a 1" Hard-Dome Tweeter and 1 x 6.5" C-CAM Woofer . On the other hand, the CWM663 features a 1" Soft-Dome Tweeter and 1 x 6" Kevlar Woofer .

Frequency Response

W265 has a frequency range of 55-30kHz whereas CWM663 has a frequency range of 45-50kHz. With a minimum frequency of 45Hz, the CWM663 can go significantly deeper on the low side and provide stronger bass compared to the W265's min frequency of 55Hz.

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

W265
CWM663
Min
Average
Max
High Frequency

In-wall Speakers

Monitor Audio W265
B&W CWM663
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

W265 is a 6 ohms speaker compared to the CWM663 which has a nominal impedance of 8 ohms.

These two speakers also have different sensitivity levels. W265 sensitivity is rated at 88.5 dB and the CWM663's is rated at 88 dB. This 1 dB difference makes the Monitor Audio W265 a more sensitive speaker compared to B&W CWM663, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

W265
CWM663
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.

W265 can handle a max power of 150 watts RMS from the amp the whereas W265 has a max power handling value of 65 watts RMS , 85 watts less than the CWM663.

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

W265 features Spring post type posts and CWM663 has a Spring post 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 W265's and B&W CWM663's external dimensions. Monitor Audio W265 has external dimensions of 332.0 x 213.0 x 93.0mm ( 13.0625-inch x 8.3750-inch x 3.6250-inch) whereas B&W CWM663 has external dimensions of 280.0 x 185.0 x 96.0mm ( 11.0000-inch x 7.2500-inch x 3.7500-inch) .

B&W CWM663 is 28mm narrower and 52mm shorter than Monitor Audio W265 but it is also 3mm deeper.

What's in the Box of Monitor Audio W265?

Here are the items that are included inside the box of W265:
  • In-wall speaker
  • Grille
  • Paint skim
  • Installation Guide
  • Important Safety Instructions
  • Cutout Template
  • What's in the Box of B&W CWM663?

    Here are the items that come with the CWM663:
  • 2 In-wall loudspeakers
  • 2 Mounting frames
  • 2 Grilles
  • 2 Paint mask
  • 2 Cut-out templates
  • Quick Start Guide
  • Template
  • Warranty Information

  • Reasons to choose Monitor Audio W265 over Bowers & Wilkins Performance Series CWM663
    Sensitivity 89 dB vs 88 dB Play louder with same amount of amplification power
    Woofer Size 6.5 inches vs 6 inches Larger woofer
    Price per pair* 780USD vs 900USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose Bowers & Wilkins Performance Series CWM663 over Monitor Audio W265

    Max Input Power 150 watts vs 65 watts Handle more power from your amplifier
    Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
    Low Frequency Response 45 Hz vs 55 Hz Generates deeper bass
    High Frequency Response 50k Hz vs 30k Hz Generates higher frequency
    Height 280mm vs 332mm Easier to fit in smaller spaces
    Base Surface Area 177cm2 vs 198cm2 Takes less floor space
    Monitor Audio W265 vs B&W CWM663 Specs Table
    Detailed comparison of specifications
    General Monitor Audio W265 Bowers & Wilkins Performance Series CWM663
    Brand Monitor Audio Bowers Wilkins
    Speaker Type Passive In-wall Speaker Passive In-wall Speaker
    Power Range 20-65 watts 25-150 watts
    Sensitivity 88.5 dB 88 dB
    Impedance 6 ohms 8 ohms
    Frequency Response 55-30kHz 45-50kHz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 6.5" 6"
    Woofer Composition C-CAM Kevlar
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type Hard-Dome Soft-Dome
    Aimable Tweeter Yes No
    Midrange Driver N/A" N/A"
    Physical Specs
    Height 332.0mm (13.1") 280.0mm (11")
    Width 213.0mm (8.4") 185.0mm (7.3")
    Depth 93.0mm (3.7") 96.0mm (3.8")
    Enclosure In-wall In-wall
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty Lifetime 5 Years
    Labor Warranty Lifetime 5 Years

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