SKU: 97131683377

Monitor Audio CSS230 Super Slim In-Ceiling Speaker

Sale price$230.40 Regular price$256.00
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Ships within 48 hours · Estimated delivery Jul 11 - Jul 16

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Description

Monitor Audio CSS230 Super Slim In-Ceiling SpeakerKey Information Sensitivity (1W @ 1M): 86 dB Cut Out Diameter: 211 mm Mounting Depth: 50 mm Power Handling (RMS): 40 Ws Nominal Impedance: 8 ohms Driver Size: 3 " Sold As: Single Speaker The CSS230 is a brilliantly innovative back box design with an impressively shallow 50 mm (2") mounting depth, custom built to offer hi fi levels of performance in spaces where no high quality speaker has gone before. Between 2" stud frames or where pipework or

Key Information

  • Sensitivity (1W @ 1M):86 dB
  • Cut-Out Diameter:211 mm
  • Mounting Depth:50 mm
  • Power Handling (RMS):40 Ws
  • Nominal Impedance:8 ohms
  • Driver Size:3 "
  • Sold As: Single Speaker

The CSS230 is a brilliantly innovative back-box design with an impressively shallow 50 mm (2") mounting depth, custom built to offer hi-fi levels of performance in spaces where no high quality speaker has gone before.

Between 2" stud frames or where pipework or cabling reduces mounting depth, the hybrid back-box construction and proprietary full-range driver array combine to deliver consistent audio quality with exceptional installation versatility.

The hybrid back-box provides the best of all worlds for installer and customer. Combined, the three proprietary 3" mid-bass units achieve the bass output of a 6 1/2" driver, all from a super-stealthy flush-fitted profile. 

In keeping with Monitor Audio’s renowned design rigour, the crossover comprises high quality film capacitors and low loss inductors - selected for signal integrity - ensuring peerless audio detail and dynamics from a speaker of its size and application. When the CSS230 is in ‘ported’ mode, a fine gauze protects the acoustic system from dust ingress.

Optional square or premium grille can be used with this model. 

Specifications

Frequency Response (-6 dB): 100 Hz – 30 kHz sealed ‘CP’ (85 Hz – 30 kHz –open back)

Nominal Impedance: 8 ohms

Sensitivity (1W@1M): 86 dB

Maximum SPL: 103.8 dBA

Power Handling (RMS): 40 Watts – Full range (60 watts with crossover set to 100 Hz @ 12 dB/Octave)

Recommended Amplifier Requirements: 10 - 60 W

Drive Unit Complement: 3 x 3" C-CAM cone bass-mid drivers

1 x 19 mm (3/4") C-CAM Gold Dome tweeter

Crossover Recommendation: 100 Hz at a minimum of 12 dB/Octave (24 dB/Octave optimum)

Connection: Gold Plated Sprung push terminals – for bare wire connection up to 4 mm(2)

Overall Diameter (Including Grille): 250 mm 

Overall Depth (Including Grille): 54 mm

Cut-Out Hole Diameter: 211 mm

Mounting Depth: 50 mm 

Optional Square Grille - Outer Dimensions: 249 x 249 mm

Fixing Type: 3 position Tri-Grip dog leg fixings

Construction Material: ABS (UL94 rated, RoHS2 Compliant) – Painted steel grille

Weight: 2.88 kg

Pre-Construction Bracket: CB6 Pre-Construction Bracket (Purple)

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 97131683377

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arturo echalar
Natrona Heights, US
★★★★★ 5
Good product
Size: Medium, Color: Gray
Nice to use on cold weather
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Reviewed in the United States on May 4, 2026
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kim
Birmingham, US
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Size: X-Large, Color: Gray
Looks and feels more expensive than what I paid for.
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Reviewed in the United States on February 16, 2026
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Ang Coakley
Carnegie, US
★★★★★ 5
Coat is perfect for any occasion.
Size: Medium, Color: Black
The fit is true to size. The coat has a soft exterior is very warm and is perfect for wearing to a fancy event or everyday. Great purchase and price.
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Reviewed in the United States on November 2, 2025
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SOCRATES
Phoenix, US
★★★★★ 5
NICE AND STRETCHY
Color: Navy Blue, Size: 42
These pants are made of a material that seems durable and is definitely comfortable, and they have a stretch band at the waist that can comfortably accommodate many different belly girths-- from slim to portly. The waist also has a drawstring. I'd call these light weight pants, as the material is thin. They aren't baggy at all and fit the natural contours of an average male physique. The pants have two fairly deep front pockets and one small rear pocket that can easily fit a regular-sized wallet. But, I would not recommend carrying a wallet in the rear pocket, as, due to the depth of the pocket being only as deep as the wallet is long, it might slip out as you move around, sitting and rising. If nature calls, and you need to pee, you will have to pull your pants down and excite anyone in the immediate vicinity, as there is no opening, either buttoned or zippered, in the front of the pants. So, in that respect they are kind of like sweatpants. I'd call these pants good for inside the house or wearing on the street. I like them despite the lack of a fly, so I give 5 stars. I see lots of Chinese, Korean, and Japanese guys around who like to wear this type of pant, but these fit nicely for generally larger and more robust Caucasians type physiques as well. You don't have to worry about a belt or a broken fly zipper with these. Of course they are made in China, but due to their vast experience selling clothing to Americans, the manufacturers are well acquainted with big masculine American bodies and their needs.
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Reviewed in the United States on January 9, 2026
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Don B_12073
Natrona Heights, US
★★★★★ 5
Good product.
Color: Black, Size: 38
Good price and fits good. Would buy again
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Reviewed in the United States on June 4, 2026

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