USB Audio Devices that work with iPad
The discussion of issues surrounding the iPad’s USB audio support in the previous post certainly begs the question, “Which devices work properly with the iPad?” In the table below, I list the devices I have tested with the iPad, along with some observations.
iPad USB Audio Device Compatibility
Please keep in mind that the iPad Camera Connection Kit is required to connect USB audio devices to the iPad (see the previous post).
|ART USB Dual Pre||Data Loss (1)||Works (2)||Yes||The USB Dual Pre runs on bus power, even with phantom power on. It can also run on a 9V battery.|
|Behringer UFO202||Data Loss (1)||Works (2)||Yes|
|Blue Icicle||No||N/A||N/A||The iPad completely rejects the Icicle with the message: “The attached USB devices is not supported.”|
|Griffin iMic||Works||Works||Yes||I tested an older model, but others have confirmed that the newer model also works.|
|MXL Mic Mate Classic||Data Loss (1)||N/A||Yes (3)||Phantom power is always on. No output channels.|
|MXL Mic Mate Pro||Data Loss (1)||Works (2)||No||Phantom power is always on. A self-powered USB hub is required to use the Mic Mate Pro with the iPad.|
|Nady UIM-2X||Works||Works||Yes (3)||Unfortunately, the UIM-2X rolls off low frequencies, below 200 Hz, which makes it undesirable as a measurement device.|
- Input data reaches the iPad, but it gets corrupted, apparently because of improper clock synchronization.
- Audio output works fine, as long as the iPad app does not also retrieve input data. For example, the ART USB Dual Pre works fine with SignalSuite, which only uses audio output. The same device produces audible glitches in its output when used with SignalScope Pro, which uses the device’s input and output channels.
- If the input device draws too much current, the iPad will refuse to work with it, even if the iPad had already been working with the device. For example, even though the Nady UIM-2X presents itself as a high power device (one that requires more than 100 mA of current from the USB bus), the iPad will work with it until you turn the UIM-2X’s phantom power on. At that point, the iPad will indicate that it draws too much power and switch audio back to the internal mic and speaker.
In summary, of the devices mentioned above, only the Griffin iMic and Nady UIM-2X work properly for both audio input and output with the iPad. Audio output generally works on output-capable devices, although some devices produce audible glitches when both input and output are used by an iPad app. Unfortunately, there still isn’t a simple, bus powered solution for connecting a phantom-powered measurement microphone to the iPad.
Feel free to share your iPad USB audio experience in the comments.