Monitor Audio CSS230 Super Slim In-Ceiling Speaker
Monitor Audio CSS230 Super Slim In-Ceiling Speaker
Monitor Audio CSS230 Super Slim In-Ceiling Speaker
Monitor Audio CSS230 Super Slim In-Ceiling Speaker
Monitor Audio CSS230 Super Slim In-Ceiling Speaker
Monitor Audio CSS230 Super Slim In-Ceiling Speaker

Monitor Audio CSS230 Super Slim In-Ceiling Speaker


Regular price RRP $569.00 Sale price$512.00 Save 10%

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  • Free Delivery Australia Wide
  • Local Australian Warranty
  • 1800 100 998 For Assistance

We take pride in our customer service and shipping times. Most products will ship within 1-2 business days. If there are any potential delays with products in your order, we will contact you.

All orders now come with free shipping Australia Wide.

We use a variety of shipping methods depending on the types of items purchased and their delivery location. This helps to ensure your items arrive safely and in a timely manner. If you are on a tight deadline or would like to know an estimated delivery date for your order, contact our friendly staff and they will be happy to assist.

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. 


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)

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CHT Solutions has been very prompt to respond and ship the items. I will never hesitate to buy from them again. More power to CHT Solutions!

Richard Y.
Thornleigh, NSW

CHT delivery was incredibly fast, Many thanks all for such an easy purchase process and super fast delivery. 5 stars from me

Chris N.
Malaga, WA

Buying from CHT Solutions was easy and their price was great and I would recommend then to anyone seeking good Hi Fi equipment.

John L.
Woonona, NSW

Fast delivery and great products. Would recommend them to anyone needing great service for sound advice.

Oscar F.
Truganina, VIC

CHT delivered the unit to South Australia within a couple of days. Amazing! Their phone customer service was professional and courteous. Will happily purchase from them again

Robert F.
Tranmere, SA