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Bowers & Wilkins Reference Series CWM7.4 S2 2.5-way multi-purpose in-wall speaker

Item # 749CWM74S2

Looking for exceptional detail, clarity, and presence with music and movies? This in-wall speaker offers that and more.

Looking for exceptional detail, clarity, and presence with music and movies? This in-wall speaker offers that and more.

Item # 749CWM74S2

Ships free

Every order includes

  • Free lifetime tech support
  • 60-day price-drop protection
  • 60-day returns
Temporarily out of stock
Expected: 8/1/2025
$1,350.00 each

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Expert help 400+ hours training Virginia-based

About the Bowers & Wilkins Reference Series CWM7.4 S2

Kramer Crane

Product highlights:

  • 2.5-way design
  • ideal for an elite in-wall music system, or as part of a custom-installed home theater system
  • symmetrical driver design allows for vertical or horizontal installation
    • install a pair vertically for stereo music or as the left and right channels of a home theater
    • install one horizontally as a center channel
  • 1" carbon dome tweeter
  • dual 4" Continuum cone midrange/bass drivers
  • dual 4" aramid fiber/paper cone bass drivers
  • frequency response: 45-28,000 Hz (±3dB)
  • recommended amplifier power: 25 to 150 watts
  • nominal impedance: 8 ohms
  • sensitivity: 86 dB
  • magnetic grille is paintable to match your décor
  • cutout dimensions: 5-13/16"W x 23-1/2"H
  • overall dimensions: 6-9/16"W x 24-5/8"H
  • mounting depth: 3-11/16"
  • weight: 13.75 lbs.
  • warranty: 5 years
  • MFR # FP41033
  • Item # 749CWM74S2

Separate amplifier required.

What's in the box:

Bowers & Wilkins Reference Series CWM7.4 S2 owner's manual

If you need assistance accessing this owner's manual, please give us a call.
  • In-wall loudspeaker
  • Mounting frame
  • Grille
  • Paint shield
  • Cutout Template
  • Installation Instructions
  • Warranty Information

More details on the Bowers & Wilkins Reference Series CWM7.4 S2

Stacey B.

Features & specs

Features
Quantity in Package Single
Tweeter Soft-Dome
Aimable Tweeter No
Woofer Composition Aramid fiber/paper cone
Woofer Surround Rubber
Connector Type Spring post
Bi-Amp Inputs No
Built-in Back-box No
Moisture Resistance
Indoor (Moisture-resistant) No
Outdoor (Partial Exposure) No
Outdoor (Full Exposure) No
Specs
Tweeter Size 1
Midrange Size 4
Woofer Size 4
Speaker Shape Rectangle
Cutout Width 5.8125
Cutout Height 23.5
Mounting Depth 3.6875
Power Range (Watts) 25-150
Sensitivity 86 dB
Impedance (Ohms) 8
Frequency Response 45-28kHz
Parts Warranty 5 Years
Labor Warranty 5 Years

Product Research

Features

2.5-Way Driver Design: The Bowers & Wilkins CWM7.4 S2 features a 2.5-way driver with one 1" Carbon eome tweeter, two 4" Continuum cone midrange driver, and twin 4" Aramid Fiber/paper bass cones. The 1" Carbon dome tweeter delivers pinpoint imaging accuracy and detail, while the two Continumm FST cone midrange drivers provide a natural and open midrange sound. The twin Aramid Fiber/paper bass cone woofers produce smooth articulate bass.

Spring-Post Terminals: The B&W CWM7.4 S2 in-wall loudspeaker is outfitted with spring-post terminals that will accommodate bare speaker wire (up to 12AWG), pin connectors, and banana plugs (single only).

Magnetic & Paintable Grilles: The Bowers & Wilkins CWM7.4 S2 in-wall loudspeaker includes easy-to-install magnetic grilles that are also paintable. The grille protrudes 0.3125" from the wall.

In-Wall Installation: The B&W CWM7.4 S2 requires a rectangular cutout and is secured in the wall via the included mounting frame with integrated "QuickDogs" spring-loaded clamps that tighten using phillips-head screws. The cutout will need to measure 5.8125" (w) x 23.5" (h) x 3.6875" (d). Make sure there is a least 0.75" of clearance around the cutout opening for the integrated "QuickDogs" clamps. The mounting clamps will accommodate 0.25" to 1.0" thick drywall.

Note: Before installing the CWM7.4 S2 in-wall speaker, you should ensure that the wall location chosen is free of obstructions such as pipe work, ducting or wiring that will interfere with the installation. In existing drywall construction, use a stud-finding tool to help you map the wall construction and a pipe detector to scan the proposed installation location.

Applications: Designed for in-wall use, the B&W CWM.74 S2 can be used as a front, center, or rear channel speakers in a home theater system. It can also be used in a 2ch stereo setup.

  • Home Theater: When used as front channels, the left and right speakers should be located on either side of the screen approximately 20" away. When used as a center channel, the speaker should be located either directly above or below the screen; or in the case of an acoustically transparent screen, directly behind the screen. As rear surround channels, the speakers should be located just behind and one either side of the listening position.
  • 2-Channel Stereo: For applications where a pair of CWM7.4 S2 speakers are to be used for conventional stereo reproduction, they should be located between 10' and 16.5' apart and a similar distance in front of the listening area.

Notes:

  • Try to avoid corner locations for any of the speakers and to ensure that the acoustic environment around each speaker is similar.
  • The nature of the installation of in-wall speakers means that it is sometimes impractical to locate them in the acoustically ideal positions. In these cases they should be located as close as is practical to the ideal positions.

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Customer Q&A

6 questions already asked

Q
live in mn. what are limitations of installing in wall speaker systems on exterior 6" wall?
john d  Jan 21, 2024
1 answer
A
The B&W CWM7.4 S2 requires a rectangular cutout and is secured in the wall via the included mounting frame with integrated "QuickDogs" spring-loaded clamps, John. The cutout will need to measure 5.8125" (w) x 23.5" (h) x 3.6875" (d). At less than 4" in depth the Reference Series CWM7.4 S2 can be installed with insulation behind it. Make sure there is a least 0.75" of clearance around the cutout opening for the integrated "QuickDogs" clamps. You will need to check the building code in your state to comply when installing. I hope this helps!
bo  Jan 22, 2024 (Staff)
Q
Why do you have to call to order?
scott  Oct 13, 2023
1 answer
A
For this specific Bowers & Wilkins CWM7.4 S2 orders must be placed by calling, Scott. If you are interested in placing an order or determining if the CWM7.4 is the right speaker for your setup, please give an Advisor a call at 1-800-324-9695 and we would be happy to help!
bo  Oct 13, 2023 (Staff)
Q
What speaker, bookshelf or satellite would pair nicely with these to serve as the surround speaker?
todd  Sep 09, 2023
1 answer
A
We have a few options here Todd, depending on your personal preference. The Bowers & Wilkins M-1 in the first link below is available in black or white and would work perfectly for a small surround satellite, paring nicely with the CWM7.4 S2's. If you have space for a small bookshelf the 607 S3 in the second link would be a great call! https://www.crutchfield.com/p_749M1MB/Bowers-Wilkins-M-1-Matte-Black.html https://www.crutchfield.com/p_749607S3BK/Bowers-Wilkins-607-S3-Black.html
bo  Sep 09, 2023 (Staff)
Q
What is the recommended cavity volume?
brian  Jan 15, 2022
1 answer
A
There is not required amount of airspace in the cavity for this speaker; just need to make sure you have enough space to physically fit it.
jason  Jan 18, 2022 (Staff)
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Get better-controlled sound from a built-in back-box

The Bowers & Wilkins Reference Series CWM7.3 S2 offers these features:
  • built-in back-box ensures well-balanced sound in any installation and protects against dust and dirt
  • 3-way driver design
  • dual 6" Aerofoil™ Profile bass drivers
  • 4" FSTT™ (Fixed Suspension Transducer) Continuum cone midrange driver
  • front-firing port for increased bass performance
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