Where you put a smart speaker changes two things: how it sounds, and how well it hears you. Shove it into a bookcase corner and bass frequencies build up into a boomy mess. Push it flush against a wall and it may struggle to pick out your voice from its own echo. None of this needs guesswork — Sonos, Amazon and Google all publish specific placement advice for their own hardware, and the principles carry over to any smart speaker on the market.
Why placement matters for sound and voice recognition
Sound and microphone performance both depend on what's near the speaker, not just the speaker itself. A smart speaker pumps sound in every direction, and that sound reflects off nearby walls and furniture before it reaches your ears. The same surfaces that colour the sound also reflect your voice back at the device's microphone array, which can confuse far-field voice recognition. Get the position right and you improve both at once.
Keep speakers clear of corners and walls
Leave a gap behind the speaker rather than pushing it flush to a wall. Sonos's own placement guidance calls for at least an inch of clearance behind smaller speakers like the One, and around 2 inches behind larger models such as the Five, with the device sat flat on a stable, non-metal surface. Amazon gives more specific figures for the Echo Studio: a minimum of 6 inches (15cm) from the nearest wall, with clear space on top and at the sides too.
The reasoning is the same for any brand: corners and wall junctions reflect and reinforce low frequencies, which is why bass-heavy corner placement tends to sound boomy rather than punchy. If a corner is genuinely the only spot available, angling the speaker away from the corner or standing it on a stand rather than a low shelf usually helps more than moving it a few inches along the same wall.
Getting the height right
Aim for roughly ear height when you're seated or standing in the room you use most. Google's official guidance for pairing Nest and Home speakers recommends positioning both units at the same height — ideally around the height of your ears — rather than one on a high shelf and one on a low table. A consistent height keeps the stereo image balanced and stops one speaker dominating the room simply because it's closer to your ears.
For a single speaker used mainly for voice commands rather than music, a worktop, sideboard or console table usually works better than a high shelf near the ceiling, since raised placement pushes the microphones further from where people are actually talking.
Stereo pairing: how far apart should two speakers be
Give a stereo pair real separation rather than sitting them side by side. Google recommends spacing a paired Home Max stereo set around 10 feet (roughly 3 metres) apart, with the listening position also around 8 to 10 feet from each speaker — effectively forming a wide triangle rather than a tight cluster. If your room can't stretch to that, prioritise equal distance from each speaker to your main seating position over hitting an exact figure; asymmetric spacing skews the stereo image more than slightly tight spacing does.
If you're building out a proper stereo or multiroom system rather than a single pair, it's worth comparing dedicated options — our best multiroom speakers UK guide covers systems designed around exactly this kind of room-to-room placement.
Avoiding Wi-Fi dead zones and 2.4GHz interference
A smart speaker that can't hold a stable connection will mishear commands and drop streaming audio, so its position relative to your router matters as much as its position relative to a wall. Most smart speakers connect over 2.4GHz Wi-Fi for better range, but that's the same crowded frequency band used by cordless phones, baby monitors and other household electronics. Ofcom's own broadband guidance lists halogen lamps, dimmer switches, stereo and computer speakers, TVs, monitors, cordless phones and baby monitors as common sources of household wireless interference, and recommends keeping networking equipment away from these devices and off the floor.
In practice, that means avoiding placing a smart speaker directly beside a baby monitor base station, a cordless phone dock or a microwave, and not tucking it behind a TV stand full of cabling. If a room consistently has weak Wi-Fi, that's worth fixing at the network level before you fine-tune speaker position — our home network VLAN guide covers segmenting smart home devices onto their own network, which can also reduce congestion on a busy 2.4GHz band.
Kitchen and bathroom placement: humidity and steam
Smart speakers are electronics, not bathroom fittings, so keep them away from direct steam and standing moisture. Few mainstream smart speakers carry a meaningful water-resistance rating, and manufacturer guidance consistently steers placement away from direct sunlight, heat sources and moisture. In a kitchen, that means a shelf away from the hob and kettle rather than directly above them; in a bathroom, a speaker belongs well clear of the shower and any splash zone, not on a windowsill next to the bath.
Multi-room setups: avoiding audio overlap between rooms
If you can hear two rooms' speakers playing slightly out of sync in the hallway between them, that's a placement problem as much as a sync one. Sound carries through open-plan layouts and hallways more than most people expect, so two speakers in adjoining rooms playing the same multiroom group can create a noticeable echo or phasing effect where their sound overlaps. Positioning speakers away from shared doorways, or grouping only the rooms you're actually using rather than the whole house by default, avoids most of this. Reviews of specific ecosystems — such as our Sonos One review and our Google Nest Hub review — are a useful next step if you're deciding which system to build a multi-room setup around.
Smart speakers, Home Assistant, and voice pickup range
If you're using a speaker as a Home Assistant media player or voice satellite rather than through a manufacturer's own app, the same acoustic rules apply — arguably more so. Home Assistant's own Voice Preview Edition hardware relies on dual microphones and an onboard XMOS audio chip specifically to pick out speech in normal room conditions, and its audio feedback is designed to be heard from across the room — both of which depend on the device having a clear, central position rather than being wedged in a corner or cupboard. The same logic applies whether you're using a dedicated Voice PE device or routing an existing smart speaker into Home Assistant as a media_player entity: central, unobstructed placement gets you more reliable pickup than raw microphone specs do.
Quick placement checklist
Before you commit to a spot, run through this:
- At least a few centimetres of clearance behind and beside the speaker — never flush against a wall or deep in a corner
- Roughly ear height for the room you use most, not a high shelf or floor-level placement
- Stereo pairs spaced wide, with equal distance to your main seating position
- Away from cordless phone docks, baby monitor bases and microwaves that share the 2.4GHz band
- Clear of steam, splash zones and direct heat in kitchens and bathrooms
- Central rather than tucked away, if voice pickup matters more than discreet styling
None of these adjustments cost anything beyond a few minutes of trial and error, and most people notice a difference in both sound and voice recognition the moment they move a speaker even a short distance off a wall. If you're still choosing hardware rather than positioning what you already own, our best wireless speakers UK roundup is a good starting point.
