Monitor Audio CWT240R Trimless 4″ In-Ceiling Speaker (Round Grill) – Each


Incorporating a 4-inch C-CAM driver for a wider response and exceptional midrange accuracy, together with the CWT family’s pivoting gold dome tweeter, the CWT240 combines our signature sound quality with stealthy ‘trimless’ aesthetic appeal.

Please specify a round or square grille option when ordering.

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  • 4” driver
  • Versatile – Round or Square grille options
  • Smaller – Overall size is typically 25% smaller than similar products
  • Slim – all models less than 4” deep for easy installation in more locations
  • Tri-Grip® – secure and easy fixing
  • C-CAM® – bass driver
  • C-CAM – distinctive and renowned gold dome tweeter with up to 15 degrees of pivot in all directions
  • Trimless – unobtrusive frame and low profile grille for installations where discreet aesthetics are necessary
  • Magnetic grille fixing – grilles are held in place by ultra-powerful Neodymium magnets for easy installation and servicing
  • Paintable grille to allow perfect integration with décor. Additional scrim material is provided to facilitate trouble-free painting
  • All models feature dust protection covers that are designed to prevent the ingress of loose building materials or dust into the driver and crossover network
  • Dedicated pre-construction (rough-in kits) brackets available.


The gold dome tweeter is formed from a ceramic-coated aluminium/magnesium alloy, gold anodised to a specific thickness for ideal stiffness and damping characteristics. Its new profile and surround geometry have been developed using advanced modelling tools, to provide the optimum qualities for accurate sound reproduction. The new design moves the first order of breakup to beyond 35kHz, producing a linear response way beyond audibility, which matches the wide frequency bandwidth available from HD music and cinema sound formats.

The gold dome is thinner, lighter, more rigid and therefore more efficient than domes made from other materials which are prone to distortion in the audio band.


Ultra-powerful Neodymium magnets hold the speaker grilles in place, allowing for easier installation and access. In-ceiling models offer the opportunity to use square and circular grilles for the ideal aesthetic result.


Metal Matrix Polymer driver cones have a polypropylene base loaded with metallic particles to offer a rigid and responsive structure. They are manufactured using a sophisticated high-pressure injection process, which modulates cone thickness at critical points to optimise stiffness and consistency, resulting in a superior sonic performance.


All models feature a unique Tri-Grip fixing design. This 3-position ‘dog’ style fixing provides a greater contact surface area than other types, whilst saving installation time. The Tri-Grip fixings are made from a tough re-enforced polymer, giving a secure fixing without the risk of over-tightening.

Frequency Response
75Hz – 30kHz

Impedance (nominal)
6 Ohms

Sensitivity ([email protected])

Maximum SPL (single unit in free space)
102.8 dBA

Power Handling (R.M.S)
50 W

Recommended Amp Requirements
10 – 50 W

Drive Unit Complement
1 x 4” C-CAM® cone bass driver. 1 x 1” (25mm) C-CAM pivoting gold dome tweeter

Acoustic Configuration

Overall Size
Round: 180.2mm (7 1/8”) Square: 176.7 x 176.7mm (6 15/16 x 6 15/16”)

Mounting Depth
98.6mm (3 7/8”)

Cut-out Hole Diameter
149mm (5 7/8”)

Fixing Type
3 position Tri-Grip® dog fixings

Cable Connection
Gold plated ‘push’ type terminals

Grille Attachment

Construction Material
Mineral filled ABS, RoHS compliant

1.18kg (2.6lb)

Pre-Construction Bracket
CB4 (Pink)


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