Monitor Audio Super Slim WSS230 In-Wall Speaker
£340
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Sold asSingle
Impedance8Ω
Amp power10–100W
WarrantyLifetime
GrilleIncluded
Monitor Audio Super Slim WSS230 In-Wall Speaker
£340
£283.33 ex VAT
Order by 1pm Mon–Fri for same-day dispatch
Free tracked UK delivery · Next day £11.99
30-day returns · full manufacturer warranty
You'll need an amplifier
These are passive speakers, so they need an amplifier to power them (8Ω, 10–100W recommended). Either of these will drive a pair and stream music from your phone.
Need speaker cable?
Allow about 10m per speaker for a typical run back to the amplifier. Webro 16/2 LSZH (low smoke, zero halogen) is the right cable for runs in ceilings and walls.
The Monitor Audio Super Slim WSS230 is a premium in-wall speaker built for homeowners who want cinema-grade sound without sacrificing wall space. Its remarkably shallow profile makes it perfect for stud walls, new builds, and renovation projects where depth is at a premium - ideal as a centre, left or right channel in a home cinema LCR array, or for discreet stereo and multi-room listening.
Why we like it
- Just 50mm mounting depth, slipping neatly into standard 2" stud cavities
- Three 3" C-CAM bass/mid drivers paired with a 25mm C-CAM Gold Dome tweeter for detailed, dynamic sound
- Trim-less magnetic grille sits flush and can be painted to disappear into any decor
- Flexible portrait or landscape mounting suits a wide range of room layouts
- Tri-Grip dog-leg fixings and premium crossover components ensure a secure fit and refined performance
Installation notes
The WSS230 requires a cut-out of 346 x 101mm and a mounting depth of 50mm, with an overall depth of 54.25mm including the grille. Its slim profile means it will fit most standard stud wall constructions. For amplification, a compact dedicated amplifier such as a Sonos Amp or WiiM Amp pairs well, given the recommended power range of 10-100W and 8 ohm nominal impedance; for larger home cinema installations, pair with a suitable AV receiver capable of driving 8 ohm loads.
Specifications
| Frequency Response (-6dB) | 75 Hz - 30 kHz |
| Sensitivity | 87 dB (1W@1M) |
| Nominal Impedance | 8 ohms |
| Maximum SPL | 105.6 dBA |
| Power Handling | 60W RMS Full Range (100W with crossover) |
| Recommended Amplifier Power | 10 - 100W |
| Drivers | 3 x 3" C-CAM bass/mid, 1 x 25mm C-CAM Gold Dome tweeter |
| Overall Dimensions | 385 x 140.5mm |
| Depth (with grille) | 54.25mm |
| Cut-Out Dimensions | 346 x 101mm |
| Mounting Depth | 50mm |
| Connections | Gold-plated sprung terminals (up to 4mm² wire) |
Questions we get asked
Does it come with a grille?
Yes. Every ceiling and in-wall speaker we sell comes with its grille in the box. Manufacturer photos often show the speaker with the grille removed so you can see the drivers, but the grille is always included.
Will it fit my wall?
You'll need at least 50mm of depth behind the wall surface. Standard plasterboard ceilings with joists are usually fine; check for pipes, cables and insulation before cutting. Not sure? Send us a photo or plan and we'll check it for you.
Do I need an amplifier?
Yes. These are passive speakers, so they need an amplifier or AV receiver to drive them. They're rated at 8Ω with 10–100W recommended amplifier power. For most rooms a Sonos Amp or WiiM Amp is ideal: each drives a pair and streams from your phone. You can also buy a package with the amp included and save 5%.
How many speakers do I need?
As a rule of thumb: a pair for most bedrooms, kitchens and living rooms up to about 20m², two pairs for large open-plan spaces, and a single stereo speaker (T2 / stereo models) for small rooms like en-suites. For home cinema, use 5 or 7 speakers plus a subwoofer. Our free design service will plan positions and sizes from your floorplan.
Is it sold singly or as a pair?
Priced per speaker. Add the quantity you need; most rooms use a pair.
When will it arrive?
Orders placed by 1pm Monday to Friday are dispatched the same day. Standard tracked delivery is £7.99, or free on orders over £50; next working day delivery is £11.99. Delivery details.
Can I return it?
Yes. Unused items can be returned within 30 days of delivery, and every product carries the full manufacturer warranty. Returns & warranty.