Audio Interfaces, Hardware

How to Use A Scarlett 2i2 with iPad/iPhone [Very Simple]

Written By : Andrew Siemon

The Scarlett 2i2 from Focusrite has to be one of the most beloved audio interfaces on the market. If I understand correctly, it’s currently the most popular audio interface available right now and many beginners start their music production journey with it. I have one as well and I also own a Focusrite Sapphire 6USB.

The fact of the matter is they’re well-built and they work great for the price. And that’s the reason why everyone has one. That said, if you’ve never used an audio interface before, I can see how it might seem intimidating, or at least somewhat confusing. For that reason, I’m going to show you how to set one up with an iPhone and iPad.

To use a Scarlett 2i2 with an iPad/iPhone
1) Connect a USB to USB-C Adapter to your iPhone/iPad
2) Connect a USB-C cable between the iOS device and the Scarlett
3) Open GarageBand > Click Audio Recorder > Select Your Instrument
4) Select the Input and then turn on the monitoring

The thing about iPhones and iPads is the pre-2018 models don’t have enough juice to power the Scarlett 2i2 on their own. The Scarlett has a couple of preamps and other bells and whistles that an older iOS device doesn’t have the capability to power. That’s why you need a multiport adapter, and a power bank/charger to be able to run the audio interface and iOS device at the same time. I know from experience. I’ll show you how to do all of this below.

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How to Set Up A Scarlett 2i2 With An iPad/iPhone

Connecting Scarlett 2i2 to an iPhone - How to Use the Scarlett 2i2 With A Microphone [EXPLAINED]
How to set up your iPhone/iPad to a Scarlett 2i2. Note that this method only works with a newer iPhone or iPad.

All Scarlett devices are what’s called “class-compliant,” which means they’re built so they can function with the iOS core audio driver by default. This is great news for us because it ensures the Scarlett is ready to use after having plugged it in. There usually aren’t any other steps.

The long and short of getting your iPhone or iPad to work with a Scarlett 2i2 is this: you need a camera adapter or what’s called a USB-C multiport adapter.

The same thing goes for MIDI keyboards too which I showed you how to connect in this guide for iOS. Keyboards like the AKAI Mini MPK 25-Key (on Amazon) or the M-Audio Oxygen Pro 61 (also on Amazon) will work just fine for iOS because you don’t need to install any additional drivers.

This is especially important for devices like the iPad or iPhone because you usually can’t install drivers on them, as far as I know. One area where it does get a little more complicated though is in regards to powering the audio interface.

Pre-2018 iPads and iPhones don’t have enough power to run the Scarlett 2i2 on their own, so they necessitate a USB multiport adapter (also called the USB camera adapter), a power bank or block charger, and then a second USB-C cable.

For example, my iPhone 6s and iPhone 7 + can’t power the Scarlett 2i2. But my iPhone X can drive the Scarlett 2i2 just fine.

How to Connect Older iPhones and iPads to an Audio Interface
How to connect iPhones/iPads to an audio interface (with a power bank)

As I was saying at the start of the article, the Scarlett 2i2 requires a good amount of power to operate properly. And it’s buss-powered, which means it takes its juice from the device you’ve connected to. This will be the message you get if you try and connect the Scarlett to your pre-2018 iPhone or iPad without an external power source:

Cannot Use Accessory - How to Use the Scarlett 2i2 with the iPadiPhone
This is the reason why you need the USB-C multiport adapter. If you try to hook up the Scarlett otherwise, you’ll get an error saying that you don’t have the necessary power.

If you’re using an iPhone X and up, you won’t need anything but the standard USB to USB-C adapter and the cable that comes with the Scarlett 2i2. In other words, you just have to connect it to your device the same way as you would with your computer. I talked about this a bit more in my other guide on the topic.

Thunderbolt 3 and USB-C adapter - How to use the Scarlett 2i2 with GarageBand
You’ll need the USB to USB-C adapter on the right to connect an iPhone or iPad to your Scarlett 2i2.

What You Need to Operate the Scarlett 2i2 With an iPad/iPhone

1) USB-C Multiport Adapter (Camera Adapter)
Camera Adapter - How to Use A Scarlett 2i2 with iPad/iPhone [Full Guide]
You can get one of these on Amazon. I’m using this exact one.

This camera adapter with the USB-C and USB adapter attached to it is an essential part of this process. It is what’s going to allow you to drive the bus-powered audio interface with your older generation iPhone/iPad.

The one I linked above to Amazon works great, and I haven’t had any problems with it thus far. For whatever reason, the one made by Apple costs an arm and a leg.

2) USB-C Cable x2

It really doesn’t matter what kind of USB-C cable you get, but I like the one that I’ve linked to Amazon because it’s incredibly long. This is perfect for my set-up because I have my cable running underneath my desk and whatnot.

For a portable set-up, which I imagine you’re going to use this for, it’s probably not necessary. However, I find that it’s always best to be too long than too short. The Amazon Prime cables are surprisingly high-quality so don’t be afraid to get one.

3) A Power Bank (Optional)

And finally, with the assumption again that you’re going to be using your iPhone/iPad with your Scarlett 2i2 on the road, you’ll probably want some kind of a portable power bank like the one I’ve shown above.

This specific one was a gift and it’s not on Amazon, however, there are plenty of others like it on the internet. There are even power banks with solar capability which is extremely cool and worth trying out. But I digress, I’m going to show you how to set this stuff up. It’s really, really easy.

1) Connect the Camera Adapter to Your iPhone/iPad

Connect Camera Adapter - How to Use A Scarlett 2i2 with iPadi/Phone [Full Guide]
Connect your camera adapter to the iPhone

The camera adapter is going to allow us to connect a third-party power bank as well as the audio interface. As I said earlier, if you try to plug the Scarlett 2i2 directly into a pre-2018 iPhone, you’ll get an error saying that the phone doesn’t have enough power to turn on the audio interface.

Cannot Use Accessory - How to Use the Scarlett 2i2 with the iPad/iPhone
This is the error message I get when trying to connect an iPhone 7 + and the Scarlett 2i2 without an external power source.

2) Connect the Power Bank to the USB-C Port on the Camera Adapter

Connect Power Bank - How to Use A Scarlett 2i2 with iPad/iPhone [Full Guide]
Connect your power bank like usual.

One thing I should say is that you don’t necessarily need a power bank for this to work. You could also use a regular iPhone or block charger, which would work just fine. A power bank is better for portability, however.

3) Connect the Audio Interface with A USB-C Cable

iPhone Connected to Scarlett - How to Use A Scarlett 2i2 with iPad/iPhone [Full Guide]
And lastly, connect your audio interface as is shown here. You’ll know it’s working because the Scarlett will flash once and then the USB symbol will light up green.

Once you’ve connected everything, you’ll notice how the Scarlett 2i2 turns on and it’s ready to go. And really, getting your device to work with your iPhone/iPad is as simple as what’s shown in this tutorial.

In some cases, you may need to choose a few extra steps in the preferences, but in my experience, the iPhone is good at recognizing standard devices like the Scarlett 2i2.

Input and Monitoring - How to Use the Scarlett 2i2 With GarageBand
You may need to click on the Input icon and then switch on Monitoring as well.

The Scarlett 2i2 will normally be plug-and-play. If I use this set-up and then open GarageBand, I’m able to connect my guitar or microphone and then start recording instantly.

You should be good to go with no extra steps, with the exception of turning the monitoring button on. Speaking of which, there is one thing you should know about this setup though which has to do with monitoring and playback.

Why Can’t I Hear When the Scarlett Is Connected to the iPhone/iPad?

1) You Have to Connect Headphones or Speakers to the Scarlett To Monitor

Simply put, you have to connect either headphones or speakers to the Scarlett 2i2 when you’re connected to an iOS device like the iPhone or iPad. Whenever you connect an audio interface to an iOS device, it takes over the input and output audio.

14 to TRS Adapter - How to Use A Scarlett 2i2 with iPadiPhone [Full Guide]

There’s probably a good reason for this that I’m unaware of, but either way, that’s the deal. So you’ll either have to connect speakers to the line outputs on the back of the Scarlett 2i2, or you’ll need to connect headphones to the headphone jack. For that, you’ll need a 1/4″ to headphone adapter which are easy to find on Amazon.

If you’re looking for a great pair of monitoring headphones, I would recommend getting the 80 ohms Beyerdynamic DT 990 Pros (on Amazon). Get these instead of the 250 ohms, that way you don’t need so much power to drive them. If you’re looking for earbuds instead, the Etymotic ER4SEs (also on Amazon) are a great choice too.

2) You Can Use the L and R Line Outputs on the Back of the Scarlett 2i2

Line Right and Left Outputs - How to Use Scarlett 2i2 for the iPad iPhone
The left and right line output on the Scarlett 2i2 device.

I’m sure you can figure out how the line left and right outputs work on the back of an audio interface. You run a 1/4″ speaker cable from the left speaker to the left output, and then the same goes for the right speaker and right output. And finally, let’s talk briefly about how you would configure other Scarlett devices, not just the 2i2.

How To Configure the Scarlett 4i4, 8i6, 18i8, 18i20 With iPad/iPhone

How To Use The Focusrite Control Software

Because this article is concerned primarily with the Scarlett 2i2, I won’t be diving into detail on how to set up your Focusrite 4i4 and great with the iPad or iPhone. The video above is detailed, however, and walks through every part you’d need.

To put it simply and quickly though, to configure a Scarlett 4i4, 8i6, 18i8, or a 18i20 with an iPad, you have to open Focusrite Control, and then change the inputs to your iPad or iPhone. Additionally, you can control the routing of the outputs as well.

The unfortunate nature of this, however, is that you’ll need a macOS device to use Focusrite Control. You can’t use Focusrite Control on an iPad or iPhone. If you do want to get your hands on Focusrite Control, get it from their website.

Important Things to Note About Connecting the Scarlett 2i2 to Your iPhone/iPad

1) Bluetooth Speakers Won’t Work Properly With the Scarlett 2i2 and an iOS Device

One thing I’ve tried to do before but it didn’t work was using a Bluetooth speaker for the iPhone while I have the audio interface connected. As I said earlier, you can’t output the audio signal to a Bluetooth speaker while you’re recording in real-time.

On the other hand, you could disconnect it briefly and then play it back through the speaker just fine, although, as I’ve said in other articles like this one on latency, Bluetooth equipment and recording don’t go well together. This problem seems to get worse when using a platform like TikTok as well (also my guide).

2) Older iPhones and iPads Need A Power Bank to Run A Scarlett 2i2

I want to clarify what I was talking about earlier with the Scarlett 2i2 and older iPhones and iPads. I can’t say for certain when Apple improved their battery so the phones could drive Scarlett 2i2, but I know that my iPhone X can drive the Scarlett 2i2 without a power bank, but my iPhone 7 + and my iPhone 6s cannot.

Gear Mentioned

1) AKAI Mini MPK 25-Key (on Amazon)

2) M-Audio Oxygen Pro 61 (also on Amazon)

3) Camera Adapter (on Amazon)

4) USB-C Cable (on Amazon)

5) Power Bank (on Amazon)

6) 1/4″ to Headphone Adapter (also on Amazon)

7) 80 ohms Beyerdynamic DT 990 Pros (on Amazon)

8) Etymotic ER4SEs (also on Amazon)

Andrew Siemon is the principal creator of, a website dedicated to all things music, including music production, music theory, recording, and how to use the most popular DAWs. Starting out as a metal guitarist, Andrew has since moved into other areas of music production including hip-hop and fusion

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