Bowers & Wilkins Performance Series CWM663 is a 2-way Passive In-wall In-wall speaker by Bowers Wilkins. It was released in 2015. It features a 1" Soft-Dome Tweeter and 1 x 6" Kevlar Woofer. The speaker has a frequency range of 45-50kHz and a sensitivity of 88 dB. B&W CWM663 has an MSRP of 900$ per pair.
Room Size Suitability
The size of the room where you plan to use the B&W CWM663 is a crucial factor in your decision. We have assessed its suitability for various room sizes based on its dimensions and maximum power output:
| Listening Environment* |
Suitability |
| Near-field | Poor |
| Small Room | Average |
| Mid-size Room | Good |
| Large Room | Average |
| Very Large Room | 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.)
Bowers Wilkins's Performance Series of Loudspeakers
CWM663 is a member of Bowers Wilkins's Performance series of Passive speakers. The Performance (CWM) Series are B&W's high-performance in-wall custom-install speakers. Below you can see the main specs of these speakers.
Bowers Wilkins Performance Series Speakers
Frequency Response of the B&W CWM663 Speaker
B&W CWM663 has a Frequency response range of 45-50kHz and Power Range of 25-150 watts. With a minimum frequency of 45 Hz, CWM663 delivers moderate bass depth so depending on your use case, you might want to consider adding a subwoofer to your system.
Here we have a comparison of how CWM663's Low frequency value compares with the average, max and min Low frequency values in its class.
Low Frequency
In-wall Speakers
Thinking about a subwoofer for the B&W CWM663?
Impedance and Sensitivity
B&W CWM663's nominal impedance level is
8 ohms and has a sensitivity of
88 dB.
Sensitivity
In-wall Speakers
8 Ohms is pretty much the standard nominal impedance amongst stereo speakers and amplifiers so Bowers & Wilkins Performance Series CWM663 is not considered a difficult to drive speaker from nominal Impedance perspective.
Sensitivity
88dB of the Bowers & Wilkins Performance Series CWM663 is an average sensitivity for stereo speaker so it is neither easy nor difficult to drive Sensitivity wise. Work out how loud the B&W CWM663 plays in your room →
What amplifier does the B&W CWM663 need?
At normal listening levels in a medium room, about
12–150 W
per channel into 8 ohms.
Set your own conditions and we will rank every amplifier we cover.
Prefer to browse? Integrated amplifiers under $1,000, or every amplifier we cover.
Input Type
CWM663 features Spring post type connectors. Bi-amping and Bi-wiring are not possible.
Work out what gauge speaker cable this run needs →
B&W CWM663 External Dimensions and Weight
B&W CWM663 has external dimensions of (Height x Width x Depth) 11.0000-inch x 7.2500-inch x 3.7500-inch (280.0 x 185.0 x 96.0mm ).
Base Surface Area
Base surface area of a loudspeaker may become a determining factor when the space in your room or desk is limited.
The base area of B&W CWM663 is approximately 177.6cm2 / 27.5inch2.
To get a better perspective on the real life size of B&W CWM663, let's compare it with a standard size Compact Disc which has a diameter of 4.7inch (120mm).
B&W CWM663 Speaker Size Compared to a Compact Disc
Find speakers that fit your shelf or alcove →
Cabinet type and Materials
B&W CWM663 has a
In-wall type cabinet.
What's in the Box of B&W CWM663?
Here are the items that are included inside the box of CWM663:
- 2 In-wall loudspeakers
- 2 Mounting frames
- 2 Grilles
- 2 Paint mask
- 2 Cut-out templates
- Quick Start Guide
- Template
- Warranty Information
Recommended Accessories
Here is a list of accessories that we think you may need for the Bowers & Wilkins Performance Series CWM663.
Warranty
5 Years of parts warranty and 5 Years of labor warranty is generally provided by the manufacturer.