How to Connect a Turntable to Sonos

Sonos and vinyl look like an awkward pairing — a streaming ecosystem and the least streamable format there is — and in practice they work together perfectly well, provided you understand two things before buying anything.

First, only some Sonos speakers have an input at all. Second, none of them contain a phono stage. Everything else about this setup follows from those two facts.

What Sonos provides, and what it does not

A Sonos speaker is a powered speaker with networking attached. It contains amplification and drivers, so in the language of our setup diagram it occupies the same position as any other active speaker.

What it does not contain is the phono stage — the circuit that amplifies a cartridge’s tiny output by roughly a hundred times and applies the inverse RIAA curve. Sonos line inputs expect line level, the same as an AUX socket on an amplifier.

So the chain is: turntable → phono stage → Sonos speaker, with the phono stage either inside the turntable or in its own box. If you connect a preamp-less deck straight to a Sonos line input you will get a faint, thin sound at full volume, and the speaker is not at fault — see phono vs line.

Which speakers have an input

Sonos maintains its own support article on listening to a turntable, and that is the list to trust because model line-ups change. As it currently describes the options:

• Era 100 and Era 300 — line-in through the Sonos Line-In Adapter, which plugs into the speaker’s USB-C port and provides a 3.5 mm socket. The adapter is a separate purchase.
• Five and Play:5 — a 3.5 mm line-in socketbuilt into the speaker. No adapter needed, just an RCA-to-3.5 mm cable.

Speakers without a line input — the smaller and older models in the range — cannot take a turntable directly. They can still play it, but only as grouped rooms following a speaker that does have the input.

The two cables you might need

Nothing exotic, but the combination catches people out.

For a Five or Play:5: one stereo RCA-to-3.5 mm cable. The split end goes to the turntable’s red and white outputs; the single end goes into the speaker’s line-in socket.

For an Era 100 or Era 300: the same RCA-to-3.5 mm cable plusthe Sonos Line-In Adapter. The adapter provides the 3.5 mm socket that the speaker itself does not have.

If a separate phono preamp is in the chain, the RCA cable runs from the preamp’s output rather than the turntable’s, and a short standard RCA cable connects deck to preamp. Keep that first cable short — the signal is at its most vulnerable before the phono stage.

Setting the input level

Worth doing once rather than living with the default. Built-in phono preamps in turntables vary in output level by several decibels between models, so the same Sonos setting can be quiet with one deck and clipping with another.

Play the loudest passage of a record you know, and adjust the line-in level in the Sonos app until it is comfortably loud without any hardening on peaks. If your turntable has a gain switch — the Sony PS-LX310BThas three positions — set that first and trim in the app.

The latency caveat

Sonos buffers audio in order to keep multiple speakers synchronized across a network. That buffering means there is a short but real delay between needle and sound, and grouped rooms lag slightly behind the room the turntable is plugged into.

For listening this is a non-issue — you never perceive it. It matters in two situations: if you want to play an instrument along with a record, and if you can hear both the source room and a grouped room from where you sit, where the offset can be audible as a smear. In the second case, either group differently or accept it.

Sonos versus a Bluetooth turntable

People often consider these as alternatives, and they are not really comparable.

A Bluetooth turntable sends a compressed signal to one speaker or one pair of headphones. It is convenient, it is lossy, and it does not integrate with a multi-room system.

A wired line-in to Sonos sends an uncompressed analog signal into the system, which then distributes it digitally to as many rooms as you like. It sounds better than the Bluetooth path because no codec is involved, and it does the thing Bluetooth cannot — whole-house distribution.

If you already own Sonos, the line-in route is the better one. Buy the Bluetooth deck only if you want the turntable to be portable between rooms.

Is this the right system for vinyl at all?

An honest note, since this site’s job is to be straight with you.

Sonos is excellent at whole-house convenience and is not built around analog fidelity: the signal is digitized at the input, buffered, and distributed. If your priority is getting the most out of a good cartridge, a conventional amplifier and speaker pair at the same money will do more for the sound.

If your priority is playing a record and having it come out of every room in the house — which is a perfectly good priority — then Sonos does something no separates system does, and the line-in path is a proper supported route rather than a workaround.