Connecting your iPhone to a venue PA system is straightforward, and your venue co-ordinator will have done it many times before. Here is what you need to know so you can have an informed conversation with them ahead of the day.

First: what input does your venue have?

Before you buy a single cable, ask your venue co-ordinator this exact question:

“What audio inputs does the ceremony room PA have? Is it a 3.5mm aux jack, a quarter-inch jack, XLR, or Bluetooth?”

Most venues have at least one of these. Many have all of them. Get the answer confirmed before the wedding day. You do not want to discover a mismatch when guests are already seated.

One thing worth knowing: venues connect phones to their PA systems multiple times a week. This is routine for them. Before you buy a single cable or adapter, ask your co-ordinator whether they already have what you need. Many venues keep a selection of cables and adapters on hand precisely because couples ask this question. You may not need to buy anything at all.

The four types you will encounter:

3.5mm aux input — the standard headphone socket. Small, round, usually labelled “AUX IN” or “LINE IN”. Found on most modern consumer-grade PA speakers and many hotel conference systems. The easiest connection from a phone.

6.35mm (quarter-inch) jack — the large jack used in professional audio equipment, guitar amplifiers, and older venue systems. Looks like the 3.5mm socket but physically larger. Needs an adapter to connect to a phone.

XLR — the three-pin professional connector used in stage systems, church PA setups, and any venue with a mixing desk. You cannot plug a phone into XLR directly. You need a cable or adapter that converts the phone’s 3.5mm stereo signal to one or two XLR mono channels.

Bluetooth — increasingly offered as the easy option and works well in most cases. No cables to worry about. For absolute certainty, a wired connection is preferable, but Bluetooth is a reasonable choice if the phone stays within range. More on this below.

Second: which iPhone are you using?

This is where it gets slightly complicated, because Apple has changed the connector twice.

iPhone 6s and earlier: built-in 3.5mm headphone jack

If you are using an older iPhone with a traditional headphone socket, connecting to a venue PA is the simplest case. You need:

A 3.5mm male-to-male audio cable to connect to a 3.5mm venue input. Or:
A 3.5mm to 6.35mm adapter plus a standard instrument cable for a quarter-inch input. Or:
A 3.5mm to XLR cable (or a Y-cable for stereo to dual XLR) for a professional PA.

iPhone 7 through iPhone 14: Lightning, no headphone jack

Apple removed the headphone jack in iPhone 7 and it did not come back. Every iPhone from the 7 through to the 14 Pro Max uses a Lightning connector and has no built-in audio output other than the speaker.

To get audio out to a PA, you need an adapter. The reliable options:

Apple Lightning to 3.5mm Headphone Jack Adapter — Apple’s own, around £9. Small white dongle that plugs into the Lightning port and gives you a 3.5mm socket on the other end. Works reliably with every Lightning iPhone. From there, connect to the venue as above.

Third-party Lightning to 3.5mm adapters — cheaper but variable quality. For ceremony music, the extra few pounds for Apple’s version is worth it. The ceremony is not the moment to discover a budget adapter introduces a hum or cuts out.

Once you have the 3.5mm output from the adapter, add whatever the venue needs:

3.5mm male-to-male cable for a 3.5mm input.
3.5mm to 6.35mm adapter for a quarter-inch input.
3.5mm stereo to dual XLR Y-cable for a mixing desk or stage PA.

iPhone 15 and later: USB-C, no headphone jack

iPhone 15 switched from Lightning to USB-C, but the headphone situation is the same: no built-in audio jack.

You need the USB-C equivalent:

Apple USB-C to 3.5mm Headphone Jack Adapter — again around £9, again the reliable choice. Plugs into the USB-C port and gives you a 3.5mm socket. Add the appropriate cable or adapter for the venue from there.

One practical note: if you are using a USB-C iPhone and want to charge while playing, you cannot use a standard USB-C to 3.5mm adapter and charge simultaneously. If the ceremony is short, this does not matter; the battery will not drain in 20 minutes. If you have a long pre-ceremony period and the phone has been in use, check the battery before you connect and top it up beforehand rather than trying to charge and play at the same time.

What about Bluetooth?

Bluetooth is a perfectly reasonable option and most modern PA speakers support it. No cables to manage, nothing to plug in on the day. As long as the phone stays within range of the speaker, it will generally work fine throughout the ceremony.

If your venue offers Bluetooth, confirm which device the PA will be paired to beforehand, and keep the phone in the open rather than buried in a bag. Test it during your venue walkthrough so you know it works in that specific room.

For absolute certainty, a wired connection is still the safer choice. It cannot drop, pair with the wrong device, or be affected by interference. If you have the option of both, wired removes one variable you do not need to think about on the day. But Bluetooth is not the risk it once was, and many couples use it without any issues.

Let the co-ordinator own it

If your venue has a wedding co-ordinator, this is their territory. They have done it dozens of times. When you meet with them, ask them to confirm the audio setup and what they need from you. A good co-ordinator will know exactly which input the PA uses, whether they have the cables, and who will be handling the music during the ceremony. Let them lead on the logistics.

Your job is to make it easy for them: have the right phone, have the music ready in Wedding Player, and confirm everything works in a brief test together before guests arrive.

On the day

Arrive early enough to actually test the audio. Not assume. Test.

Play a track at a comfortable volume through the PA and check it sounds right in the ceremony space with the room empty. Acoustics change when the room fills with people — it will typically get quieter as guests absorb the sound, so set the volume slightly higher than you want for the test.

Leave the level set where you tested it. Charge the phone to 100% before you arrive, and turn on Do Not Disturb — Wedding Player will remind you when you enter Live Mode if it is not on.

The short version

Talk to your co-ordinator first. They connect phones to their PA every week and will almost certainly have everything you need. If they do not, you now know which adapter to get. Test the connection before the ceremony. Everything else takes care of itself.

Connections you never tested are the only ones that fail on the day.

Wedding Player handles the ceremony music side: offline playback, event-by-event structure, smooth fades, and locked Live Mode controls. Once you are plugged in and tested, the audio is handled.

How to Connect Your iPhone to a Venue PA System