In this review, we will be comparing CWM663 and Invisa MPX, two Passive In-wall speakers from Bowers Wilkins and GoldenEar.
Let's have a brief look at the main features
of B&W CWM663 and GoldenEar Invisa MPX first before getting into our more
detailed comparison.
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 )
GoldenEar Invisa MPX Key Specs
- 2-way Design
- ---" Folded Ribbon Tweeter
- 2 x 4.5" Polypropylene Woofer
- 25-35kHz Frequency Response
- 90 dB Sensitivity
- Impedance: 8ohms
- Power Range:10-250watts
- Dimensions (H x W x D): 324.0" x 6.2500" x 3.7500"( 324.0 x 159.0 x 96.0mm )
What size room are the B&W CWM663 and GoldenEar Invisa MPX 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* |
B&W CWM663 |
GoldenEar Invisa MPX |
| Near-field |
Poor |
Poor |
| Small Room |
Average |
Poor |
| Mid-size Room |
Good |
Good |
| Large Room |
Average |
Good |
| Very Large Room |
Poor |
Average |
(* 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 B&W CWM663 and GoldenEar Invisa MPX 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 CWM663 and Invisa MPX are 2-way speakers.
| Driver |
B&W CWM663 |
GoldenEar Invisa MPX |
|
Driver Setup
|
2-way
|
2-way
|
|
Tweeter
|
1-inch
|
----inch
|
|
Midrange
|
- |
- |
|
Woofer
|
1 x 6-inch
|
2 x 4.5-inch
|
CWM663 features a 1" Soft-Dome Tweeter and 1 x 6" Kevlar Woofer . On the other hand, the Invisa MPX features a ---" Folded Ribbon Tweeter and 2 x 4.5" Polypropylene Woofer .
Frequency Response
CWM663 has a frequency range of 45-50kHz whereas Invisa MPX has a frequency range of 25-35kHz. With a minimum frequency of 25Hz, the Invisa MPX can go significantly deeper on the low side and provide stronger bass compared to the CWM663's min frequency of 45Hz.
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
High Frequency
In-wall 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
CWM663 and Invisa MPX have the same Impedance of 8 ohms but where they differ is the sensitivity levels. CWM663 sensitivity is rated at 88 dB and the Invisa MPX's is at 90 dB. This 2 dB difference makes the GoldenEar Invisa MPX a more sensitive speaker compared to B&W CWM663, hence will play louder with the same amount of watts.
Sensitivity
In-wall 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.
CWM663 can handle a max power of 250 watts RMS from the amp the whereas CWM663 has a max power handling value of 150 watts RMS , 100 watts less than the Invisa MPX.
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
CWM663 features Spring post type posts and Invisa MPX 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 B&W CWM663's and GoldenEar Invisa MPX's external dimensions. 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) whereas GoldenEar Invisa MPX has external dimensions of 324.0 x 159.0 x 96.0mm ( 12.7500-inch x 6.2500-inch x 3.7500-inch) .
What's in the Box of B&W CWM663?
Here are the items that are included inside the box of CWM663:
2 In-wall loudspeakers2 Mounting frames2 Grilles2 Paint mask2 Cut-out templatesQuick Start GuideTemplateWarranty Information
What's in the Box of GoldenEar Invisa MPX?
Here are the items that come with the Invisa MPX:
In-wall loudspeakerGrilleOwners ManualCut-Out TemplateCardboard Paint Shield