SpeakerDecision
  • SPEAKERS by TYPE
    • Passive Bookshelf Speakers
    • Passive Floor-standing Speakers
    • Passive Center Channel Speakers
    • Passive In-wall Speakers
    • All Passive Speakers
    • Powered Subwoofers
    • Powered Stereo Speakers
  • AMPLIFIERS
  • SMART FIND

B&W CWM362 vs ELAC IW-DC51-W Comparison

x
Speaker to replace
Change

B&W CWM362

Passive In-wall | 50-30kHz

Bowers & Wilkins Flexible Series CWM362
CHECK PRICE
Change
    
ELAC IW-DC51-W

Passive In-wall | 45-20kHz

ELAC IW-DC51-W
CHECK PRICE
B&W CWM362 B&W CWM362
See at AMAZON
ELAC IW-DC51-W ELAC IW-DC51-W
See at AMAZON
B&W CWM362
See at AMAZON
ELAC IW-DC51-W
See at AMAZON
B&W CWM362 vs ELAC IW-DC51-W Speaker Comparison

In this review, we will be comparing CWM362 and IW-DC51-W, two Passive In-wall speakers from Bowers Wilkins and ELAC.

Let's have a brief look at the main features of B&W CWM362 and ELAC IW-DC51-W first before getting into our more detailed comparison.

B&W CWM362 Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 6" Polypropylene Woofer
  • 50-30kHz Frequency Response
  • 89 dB Sensitivity
  • Impedance: 8ohms
  • Power Range:10-80watts
  • Dimensions (H x W x D): 280.0" x 7.2500" x 3.0000"( 280.0 x 185.0 x 77.0mm )

ELAC IW-DC51-W Key Specs

  • 2-way Design
  • 1" Soft-Dome Tweeter
  • 5.25" Woven Aramid-Fiber Woofer
  • 45-20kHz Frequency Response
  • 87 dB Sensitivity
  • Impedance: 6ohms
  • Power Range:30-120watts
  • Dimensions (H x W x D): 159.0" x 16.5000" x 3.3750"( 159.0 x 420.0 x 86.0mm )

What size room are the B&W CWM362 and ELAC IW-DC51-W 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 CWM362 ELAC IW-DC51-W
Near-field Average Poor
Small Room Good Average
Mid-size Room Average Good
Large Room Poor Average
Very Large Room Bad 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 B&W CWM362 and ELAC IW-DC51-W 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 CWM362 and IW-DC51-W are 2-way speakers.

Driver B&W CWM362 ELAC IW-DC51-W
Driver Setup 2-way 2-way
Tweeter 1-inch 1-inch
Midrange - -
Woofer 1 x 6-inch 1 x 5.25-inch

CWM362 features a 1" Soft-Dome Tweeter and 1 x 6" Polypropylene Woofer . On the other hand, the IW-DC51-W features a 1" Soft-Dome Tweeter and 1 x 5.25" Woven Aramid-Fiber Woofer .

Frequency Response

CWM362 has a frequency range of 50-30kHz whereas IW-DC51-W has a frequency range of 45-20kHz. With a minimum frequency of 45Hz, the IW-DC51-W can go significantly deeper on the low side and provide stronger bass compared to the CWM362's min frequency of 50Hz.

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

CWM362
IW-DC51-W
Min
Average
Max
High Frequency

In-wall Speakers

B&W CWM362
ELAC IW-DC51-W
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

CWM362 is a 8 ohms speaker compared to the IW-DC51-W which has a nominal impedance of 6 ohms.

These two speakers also have different sensitivity levels. CWM362 sensitivity is rated at 89 dB and the IW-DC51-W's is rated at 87 dB. This 2 dB difference makes the B&W CWM362 a more sensitive speaker compared to ELAC IW-DC51-W, hence will play louder with the same amount of watts.

Sensitivity

In-wall Speakers

CWM362
IW-DC51-W
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.

CWM362 can handle a max power of 120 watts RMS from the amp the whereas CWM362 has a max power handling value of 80 watts RMS , 40 watts less than the IW-DC51-W.

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

CWM362 features Spring post type posts and IW-DC51-W 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 CWM362's and ELAC IW-DC51-W's external dimensions. B&W CWM362 has external dimensions of 280.0 x 185.0 x 77.0mm ( 11.0000-inch x 7.2500-inch x 3.0000-inch) whereas ELAC IW-DC51-W has external dimensions of 159.0 x 420.0 x 86.0mm ( 6.2500-inch x 16.5000-inch x 3.3750-inch) .

B&W CWM362 is 235mm narrower and 9mm less deeper than ELAC IW-DC51-W but it is also 121mm taller.

What's in the Box of B&W CWM362?

Here are the items that are included inside the box of CWM362:
  • 2 In-wall loudspeakers
  • 2 Grilles
  • 2 Paint masks
  • Quick Start Guide
  • Wall Mount Cut-Out Template
  • Warranty Information
  • What's in the Box of ELAC IW-DC51-W?

    Here are the items that come with the IW-DC51-W:
  • In-wall center-channel speaker
  • Grille

  • Reasons to choose Bowers & Wilkins Flexible Series CWM362 over ELAC IW-DC51-W
    Sensitivity 89 dB vs 87 dB Play louder with same amount of amplification power
    Nominal Impedance 8 ohms vs 6 ohms Less selective with amplifiers
    Woofer Size 6 inches vs 5.25 inches Larger woofer
    High Frequency Response 30k Hz vs 20k Hz Generates higher frequency
    Base Surface Area 142cm2 vs 361cm2 Takes less floor space
    Price per pair* 520USD vs 660USD costs less (*prices may change depending on the seller, location and time)

    Reasons to choose ELAC IW-DC51-W over Bowers & Wilkins Flexible Series CWM362

    Max Input Power 120 watts vs 80 watts Handle more power from your amplifier
    Low Frequency Response 45 Hz vs 50 Hz Generates deeper bass
    Height 159mm vs 280mm Easier to fit in smaller spaces
    B&W CWM362 vs ELAC IW-DC51-W Specs Table
    Detailed comparison of specifications
    General Bowers & Wilkins Flexible Series CWM362 ELAC IW-DC51-W
    Brand Bowers Wilkins ELAC
    Speaker Type Passive In-wall Speaker Passive In-wall Speaker
    Power Range 10-80 watts 30-120 watts
    Sensitivity 89 dB 87 dB
    Impedance 8 ohms 6 ohms
    Frequency Response 50-30kHz 45-20kHz
    Drivers
    Woofer Quantity 1 1
    Woofer Size 6" 5.25"
    Woofer Composition Polypropylene Woven Aramid-Fiber
    Woofer Surround Material Rubber Rubber
    Tweeter Size 1" 1"
    Tweeter Type Soft-Dome Soft-Dome
    Aimable Tweeter No No
    Midrange Driver N/A" N/A"
    Physical Specs
    Height 280.0mm (11") 159.0mm (6.3")
    Width 185.0mm (7.3") 420.0mm (16.5")
    Depth 77.0mm (3") 86.0mm (3.4")
    Enclosure In-wall In-wall
    Moisture Resistancy No No
    Connections
    Biamp Inputs No No
    Other
    Parts Warranty 5 Years 3 Years
    Labor Warranty 5 Years 3 Years

    Most Popular Speakers
    Klipsch Reference R-51M
    Klipsch R-51M
    2-way | 93 dB | 8 ohms
    Wharfedale Elysian 2
    Wharfedale Elysian 2
    3-way | 89 dB | 4 ohms
    ELAC Debut 2.0 B6.2
    ELAC Debut 2.0 B6.2
    2-way | 87 dB | 6 ohms
    Bowers & Wilkins 606 S2 Anniversary Edition
    B&W 606 S2
    2-way | 88 dB | 8 ohms
    KEF Q150
    KEF Q150
    2-way | 86 dB | 8 ohms
    Klipsch Reference Premiere RP-500M
    Klipsch RP-500M
    2-way | 93 dB | 8 ohms
    Wharfedale EVO4.1
    Wharfedale EVO4.1
    2-way | 87 dB | 8 ohms
    Bowers & Wilkins 606
    B&W 606
    2-way | 88 dB | 8 ohms
    Copyright © 2025 by SpeakerDecision
    About Privacy Contact US Camera Decision

    Report a Correction