I have an electric piano which has two stereo jacks to connect headphones. I would like to connect one of the jacks to an iPad as an input device.

Are there any Jack-to-USB-C microphone connectors that work with an iPad? What is the correct expression to search for? Searching for "Jack USB-C" only yields results for headphones which is not what I'm looking for.

  • You need an audio interface for an iPad
    – Allan
    Commented May 10, 2023 at 20:34
  • Could you edit this to specify which jack(s) are relevant for your problem? en.wikipedia.org/wiki/Microphone_connector
    – bmike
    Commented May 11, 2023 at 0:41
  • There are two problems to solve here: getting an audio interface for your iPad, and making sure it can work with a headphone output.
    – nohillside
    Commented May 11, 2023 at 5:57
  • iPad/iPhones etc only have a single [i.e. mono] mic input using 'standard' hardware. You're going to have to up the ante considerably to get dual-channel input at line/instrument signal levels. Perhaps something like this - thomann.de/gb/ik_multimedia_irig_pro_duo_i_o.htm [not strictly a recommendation, as I've never used these myself, but IKMultimedia are a well-respected manufacturer of this type of interface].
    – Tetsujin
    Commented May 11, 2023 at 7:37
  • btw, going that route you will still probably need a splitter from the keyboard, TRS to dual TS.
    – Tetsujin
    Commented May 11, 2023 at 8:04

1 Answer 1


I am assuming that you have a piano with two ¼” headphone jacks. Below is an image of mine; I have a ¼“ to 3.5mm adapter so I can use regular (Bose) headphones with my piano shown here.

enter image description here

Usually, with electronic pianos, there is a MIDI interface. This is how I connect my iPad; by using the Lightning to USB3 adapter. If you have a MIDI port on your piano, you can use that interface pretty easily and very inexpensively. You just need the Apple USB-C to USB adapter

However, if you need to interface the sound output directly into your device, you need an audio interface (like a mixer) that connects to your iPad; the PreSounus Audiobox Go should meet your needs rather inexpensively (approx. $80USD).

It has a USB-C interface and can accommodate both ¼“ and 3.5mm jacks as well as both microphone/instrument and line level inputs. This is something you can’t do with the USB-C headphone adapter.

Disclaimer: I’ve used PreSonus products in professional settings with their 8 and 16 channel mixers, but haven’t used their “home” gear. However, from my experience, I wouldn’t hesitate recommending them.

  • Ah, they're the other guys. The name wasn't coming to me when I added my comment above. Behringer probably also make something down in the affordable bracket too.
    – Tetsujin
    Commented May 11, 2023 at 15:32
  • I found this - a bit click-bait, but all manufacturers I know already. Might be OK as a list of possibles - musiccritic.com/equipment/best-ipad-audio-interface I've never used any of these consumer-level interfaces either, so no specific recommendation from me.
    – Tetsujin
    Commented May 11, 2023 at 15:36
  • @Tetsujin I love me some Behringer and they do have an is202 (iStudio) but it is a whole iPad dock which is probably way overkill ($$$) for this application but probably an awesome bit of kit.
    – Allan
    Commented May 11, 2023 at 15:37
  • I have a friend works as a producer at the BBC. Last time I went to visit him, he seemed somewhat embarrassed by the fact that some of the studios there now had Behringer 32-ch boards. I've actually never used one , but they do seem to be trying hard to undercut everybody else. [last time I was engineering at the beeb they still had the old Calrecs from the 60s;)
    – Tetsujin
    Commented May 11, 2023 at 15:39
  • @Tetsujin That level of equipment is above my paygrade! I never did anything like broadcast level - most was voice recording and the odd instrument here and there. The broadcast folks I worked with recommended PreSonus and Behringer which is how I learned about them. They work well and are built like tanks.
    – Allan
    Commented May 11, 2023 at 15:46

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