Canton Atelier InWall 3 white

Square format, minimal depth, yet a full 2-way system with passive radiator. The Atelier InWall 3 takes the design codes of the Atelier series revamped in 2025 and condenses them into the most compact chassis in the catalogue. Canton designed it for rooms where space is tight but sound quality remains a priority: hallways, home offices, bathrooms (with suitable placement), kitchens, or rear effect speakers in a home cinema system.

A compact design that doesn’t sacrifice engineering

The 330 × 330 mm cabinet conceals a 2-way bass-reflex architecture. The 128 mm mid/bass driver uses an ATB (Aluminium Titanium Black) cone, the hallmark alloy of Canton’s new series. This material combines rigidity and lightness, two key qualities for reproducing clear mids and controlled bass despite a small enclosure volume.

A passive radiator of the same diameter supports the main driver. It works like a passive radiator: driven by the internal pressure of the cabinet, it extends the low-frequency response without needing a bass-reflex port. The frequency response goes down to 42 Hz, which is a remarkable extension for such a slim format (75 mm depth without grille). Both diaphragms share the Wave surround, a Canton-patented technology using a wavy profile to allow longer excursions while maintaining linear movement.

The 25 mm tweeter features an aluminium dome (AB series, Aluminium Black) and a Wave lens. This lens channels the treble output to widen dispersion and reduce directional effects. The crossover frequency is set at 3,000 Hz, a choice that relieves the mid/bass driver from frequencies where it would lose precision, while preserving a smooth transition to the tweeter.

Wall installation: the kit is in the box

Canton supplies a complete in-wall mounting kit. Installation uses clamps that grip the partition from the inside, a standard method for drywall. The speaker fits into a 280 × 280 mm cutout and requires an installation depth corresponding to the thickness of the chassis (around 75 mm). Solid masonry walls require a pre-built back box or niche.

The magnetic fabric grille intentionally extends beyond the chassis. It measures 330 × 330 mm and covers the edges of the speaker as well as the mounting points. Once in place, only this fabric surface remains visible, with no visible frame or screws. The result is a taut fabric square that blends into the wall, either white or black depending on the chosen finish. The grille is removable for access to settings or for enthusiasts who prefer to see the drivers.

Power and impedance: broad amplifier compatibility

The Atelier InWall 3 handles 60 W nominal power and 120 W musical peak. The nominal impedance of 4 to 8 ohms allows it to be paired with most hi-fi amplifiers or home cinema receivers, including entry-level models. The sensitivity of 88 dB at 2.83 V/1 m means moderate power is enough to reach comfortable listening levels in a medium-sized room.

Canton recommends the Smart Amp 5.1 as the natural partner for the Atelier series, but any amplifier stable at 4 ohms is suitable. For multiroom setups, multizone distribution amplifiers can power several Atelier InWall 3 units spread across different rooms.

Positioning within the Atelier range

The Atelier series comes in two variants: OnWall (on-wall surface mounting) and InWall (in-wall mounting). The InWall 3 is the most compact in-wall model. Above it, the InWall 5 offers 174 mm drivers for greater bass extension, while the InWall 9 and InWall 11 models add extra channels and center or surround configurations. The on-wall equivalent, the OnWall 3, shares the same transducers but in a sealed cabinet that mounts directly on the wall without any cutout.

This graduated range makes it possible to combine several Atelier models in a single system. The InWall 3 works well as rear surround speakers or as a stereo pair in secondary rooms, while larger models handle the front channels or the center channel.

Installation constraints to anticipate

In-wall mounting comes with a few prerequisites. The partition must provide at least 75 mm of free depth behind the cutout. Timber-frame walls or drywall partitions are well suited; load-bearing concrete or brick walls require more extensive work. Cable routing must be planned before the drywall is installed or via existing conduits.

The fabric grille, while acoustically neutral according to Canton, is still a textile that can collect dust. Regular dusting preserves its appearance and avoids any buildup on the drivers. For damp rooms such as bathrooms, Canton suggests positioning away from direct water splashes; the speaker is not certified for prolonged exposure to humidity.

Technical specifications

Acoustic characteristics

• Type: in-wall loudspeaker
• Acoustic design: 2-way, bass-reflex
• Power handling: 60 W nominal / 120 W music
• Frequency response: 42 – 40000 Hz
• Crossover frequency: 3000 Hz
• Impedance: 4 – 8 Ohms
• Sensitivity (2.83 V / 1 m): 88 dB

Drivers

• 1 × 128 mm ATB (Aluminium Titanium Black) mid / bass driver with Wave surround
• 1 × 128 mm ATB passive radiator with Wave surround
• 1 × 25 mm AB (Aluminium Black) tweeter

Dimensions and weight

• Without grille: 280 × 280 × 75 mm
• With grille: 330 × 330 × 81 mm
• Weight: 4.5 kg

General information

• Simple in-wall installation with supplied kit
• Ultra-discreet design with frameless fabric grille
• True hi-fi performance despite compact footprint
• Aluminium-titanium (ATB) technology for precise sound reproduction
• Balanced, dynamic sound, even at high volume levels
• Ideal for high-end home cinema or multiroom audio installations