Monitor Audio
Monitor Audio Super Slim WSS430
This product may take 3 to 5 business days to fulfill.
Couldn't load pickup availability
Our Super Slim in-wall range flagship, the WSS430 effortlessly delivers the most critical audiophile and cinema experiences. Using design principles and technology from our flagship Platinum II speaker models, performance from this formidable in-wall challenges that from the best high-end box speaker designs.
Key Features:
- Super-slim design and profile
- Portrait or landscape installation
- 1 x 1" MPD High frequency transducer—rotatable for portrait or landscape application
- 3 x 3" MMP II cone bass-mid drivers
- Gold plated sprung push terminals
- Tri-Grip II for easy and secure fitment
- Paintable grille
- Compatible with WB3 pre-construction bracket
British High-Fidelity Architectural Sound Redefined
The WSS430 flagship maintains its siblings’ shallow depth—all three feature identical footprints—and offers supreme audio performance, drawing on design principles and materials from Monitor’s Audio’s high-end Platinum II speakers.
The WSS430 range topper employs dished C-CAM cones to ensure ultimate diaphragm rigidity; the main aim here is to reduce distortion. High-strength Neo magnets and larger voice coils provide incredible driving force, low magnetic leakage, and a slim profile. The magnetic system provides an ‘under-hung’ motor arrangement, ensuring the coil stays in the gap, reducing distortion further and increasing power handling.
Still just 50 mm deep, there is a lot going on with the WSS430. The MPD high frequency transducer technology—also from Monitor Audio’s flagship Platinum II designs—ensures incredibly low distortion, delivering clear high frequency to over 50 kHz. Remove the model’s magnetic front trim, and you can rotate the tweeter to provide the optimum dispersion when using the model in landscape orientation.

Specifications
Category |
Details |
|---|---|
| Frequency Response (-6 dB) | 70 Hz – 50 kHz |
| Sensitivity (1W@1M) | 87 dB |
| Nominal Impedance | 8 ohms |
| Maximum SPL | 106.5 dBA |
| Power Handling (RMS) | 75 W Full range (120 W with crossover set to 100 Hz @ 12 dB/Octave) |
| Recommended Amplifier Requirements | 10 – 120 W |
| Drive Unit Complement |
3 x 3" dished C-CAM cone bass-mid drivers 1 x MPD High frequency transducer – rotatable for portrait or landscape application |
| Crossover Recommendation (AVR/Processor) | 100 Hz at a minimum of 12 dB/Octave (24 dB/Octave optimum) |
| Overall Dimensions | 385 x 140.5 mm (15 x 51/2") |
| Overall Depth (Including Grille) | 54.25 mm (21/8") |
| Cut-Out Dimensions | 346 x 101 mm (131/2 x 4") |
| Mounting Depth | 50 mm (2") |
| Connection | Gold Plated Sprung push terminals – For bare wire connection up to 3 mm2 |
| Fixing Type | 6 position Tri-Grip dog leg fixings |
| Weight | 1.1 kg (2 lb 6 oz) |
| Construction Material | Mineral filled ABS Plastic, RoHS2 Compliant. Painted steel grille |
| Pre-Construction Bracket | WB3 Pre-Construction Bracket (Dark Blue) |
| Sold As | Single Unit |
| Warranty | Lifetime |

Transparent Design Philosophy
Every Monitor Audio product is the result of intense collaboration, drawing on decades of experience within the design team and ensuring that all the elements of performance, technology and design work in harmony.
Creator Series is the physical manifestation of this approach.
-
Tier 1
A comprehensive range of speakers designed for cost-effective installations where product simplicity and solid acoustic performance is required.
Features
- C-CAM mid-bass drivers
- C-CAM gold dome Tweeters with UD Waveguide I
- Tri-Grip II legs
- Quik-Link
-
Tier 2
Where enhanced performance is required, Tier 2 models offer a significant step up over Tier 1 models, both in terms of acoustics and features.
Features
- Boundary correction, mid/high frequency & cut/boost
- C-CAM RST II mid-bass drivers
- C-CAM gold dome Tweeters with UD Waveguide II
- RST II bass drivers
- Tri-Grip II legs
- Quik-Link
- Rotating mid-pod
-
Tier 3
Tier 3 offers discreet, premium high-fidelity sound, coupled with technological innovations that offer enhanced flexibility of speaker placement.
Features
- Boundary correction, mid/high frequency & cut/boost
- IDC II coaxial mid/tweeter drivers
- RDT III bass drivers
- MPD II transducer
- Tri-Grip II legs
- Quik-Link
- Rotating mid-pod

Creator Series - In-Ceiling models
The in-ceiling loudspeaker sits at the heart of architectural sound; its ability to fill a room with wonderful sound while remaining virtually invisible delivers on the primary dream of a custom installation audio system. The Creator Series features small, medium and large in-ceiling models, allowing you to select the perfect array of speakers for your space.

Creator Series - In-Wall models
The in-wall loudspeaker is a versatile, high-performance tool that can add localised quality to any custom installation. The Creator Series in-wall models allow you to create areas of high-performance sound, most usually in a dedicated home cinema space, that rival that of stand-alone loudspeakers, while remaining virtually invisible.

Mount Boxes
The On-Ceiling and On-Wall Creator Series Mount Boxes allow simple delivery of audio in spaces where fully integrated, built-in solutions aren’t an option—delivering high-fidelity sound without restrictions.
Quik-Link
Our new innovative Quik-Link terminal revolutionises speed of installation. With Quik-Link you can make cable connections up the ladder at pre-installation stage. Once the installation is complete, the terminal, which is now connected with the speaker cables, magnetically snaps and locks into place on the rear of the speaker as you place the speaker into ceiling or wall. It’s that easy.
Tri Grip II
Tri-Grip II is a new dog-leg mechanism that is considerably stronger and more reliable than the previous generation, meaning both speaker placement and extraction could not be simpler.

RDT III
Rigid Diaphragm Technology III (RDT III) is a composite ‘sandwich’ structure made from ultra-thin low-mass skins, bonded to a honeycomb Nomex® core material. It is very light and very strong, meaning that it can respond with great speed without bending - just like a perfect piston.
MPD II
Tier 3 In-Wall speakers feature an MPD II high-frequency transducer, developed for the THX Certified Ultra Cinergy range. The precision specification of the Micro Pleated Diaphragm technology is designed to produce accurate, lifelike sound without any distortion.

Accessories
From installation to finishing touches, you’ll find everything you need to accessorise your Monitor Audio listening experience with our selection of Pre-Construction Brackets, Speaker Back Boxes and Speaker Grilles.
- Choosing a selection results in a full page refresh.
