Tascam iU2 Interface for iOS Devices


The popularity of the Apple iPad, iPhone and iPod Touch has spawned a plethora of add-on devices for recording musicians that run the gamut from simple, single-input devices to external microphones. The iU2Interface from Tascam takes the idea still further and delivers an audio/MIDI interface containing many features found in the company’s best-selling USB audio interfaces, including a pair of great-sounding microphone inputs.

Accessing the recording app of choice running on the iOS device is simple. Vocalists can connect condenser microphones to a pair of XLR inputs using the included adapter cables, with switchable phantom power available. For the guitarist or bassist, a dedicated instrument-level input is provided, while the keyboard player can connect a synthesizer or electric piano via dual balanced line inputs.

The built-in microphone preamp and analog-to-digital converter deliver far better sound performance over the stock audio inputs, with less noise and distortion. MIDI I/O is also provided and a zero-latency monitoring path allows musicians to hear themselves directly through the unit without any delay. A headphone output is available for monitoring.

Additionally, an S/PDIF digital output provides connection to a digital mixer or other digital recorder. Included with the unit is a USB cable, an iOS dock connection cable, two XLR to 1/4" conversion cables, along with a pair of converter cables for MIDI I/O. The unit will also work with conventional Mac and Windows computers via the USB 2.0 connection.

Compatibility iPhone, iPad, iPod Touch
Sampling Frequency 44.1/48 kHz
Bit Rate 16-bit
Audio Inputs 1 x 1/4" TS phone Guitar 
2 x 1/4" TRS phone Mic/Line
2 x XLR Mic via included adapter cables
Audio Outputs 2 x RCA phono
1 x 1/8" stereo mini Headphone
Digital I/O 1 x RCA coaxial S/PDIF Output (75Ω)
Control I/O Mini USB port (USB 2.0)
1 x 1/8" stereo mini phone to 5-pin DIN MIDI In via adapter cable
1 x 1/8" stereo mini phone to 5-pin DIN MIDI Out via adapter cable
Input Impedance Microphone: 2.2kΩ
Line: 10kΩ
Guitar: 1MΩ
Nominal Input Level Microphone: -63dBu to -17dBu
Line: -38dBu to +8dBu
Guitar: -55dBV to -12dBV 
Maximum Input Level Microphone: -1.0dBu
Line: +24dBu
Guitar: +4dBV
Output Impedance Line: 100Ω
Maximum Output  Headphones: 10mW + 10mW
Frequency Response 20Hz to 20kHz, +1/-3dB
Signal-to-Noise Ratio 90dB or more
THD 0.02% or less
Power Requirements Supplied by iOS device via dock connector cable or by computer via USB cable
Power Consumption 2.5W
System Requirements Windows XP 32-/64bit, Vista 32-/64bit, Windows 7 32-/64bit, Mac OS X 10.4.6 or later, iOS 4.3 or later
Drivers Windows: WDM, Mac OS X: Core Audio, Core MIDI 
Dimensions (WxDxH) 4.3 x 4.3 x  0.8" (110 x 110 x 20mm)
Weight 7.8 oz (221g)

Discussion 17

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I have 2 mics.One coming out of the L input and one from the R input.Im trying to record in stereo. How can i get both ears in the headphones recording at the same time and also get playback in stereo.Im using the "music studio" app by Xewton.I can only seem to get one side at a time.When i turn MONO on i get both but playback is only in the left side. Thanks for replying to my question so fast.Tascam is on pacific time.being from NY calling them is nearly impossible!

How do i record in stereo? i only get sound in either the left or right during playback.with mono ON the 2 sides work but playback is in 1 side.with mono OFF it only the left side

Can you guys recommend a 30 pin iOS extension cable to use with this unit? I really like the functionality and audio quality, but the permanently attached interface cable makes it incredibly difficult to use in a live setting.


Unfortunately, we do not carry a 30 pin extension cable. We do carry XLR cables which you can use to extend it from that end. You can find a listing of our XLR cables here.

Please contact us via e-mail if you have additional questions:

dear Jurek Ugarow,

Does this work with a ipad mini? using a lightning to 30 pin convertor cable?

Kind regards,

Hello Jurek -

This Tascam iU2 Interface is not only compatible with most any iOS device, it also works with both Mac and Windows computers. It will interface with an iPad MIni with this adapter:  Apple Lightning To 30-Pin Adapter.

Please contact us via e-mail if you have additional questions:

I haven't been able to get my iPad 4 to route audio through the Tascam iU2 using the Apple lightning-30-pin adapter. The iPad just sends audio though it's internal speakers. Can you offer any suggestions?

Having problems getting this to work with garage band on the iPad mini? Works fine with me wife's regular iPad.

Hi Mick -

Be sure to close down all other apps and utilities that may be open like Bluetooth and wireless, and enable the Airplane mode.

Please contact us via e-mail if you have additional questions:

I cant get it to work with the ipad mini, do you have a special way to get it to work?
I'm connecting with the lightning cable (official)


Hi Kor -

If you have followed the instructions provided above and are still having issues - please contact Tascam directly for assistance:

Please call  TASCAM: (323) 727-7627 from Monday through Friday, 8am-5pm Pacific Time.

Please contact us via e-mail if you have additional questions:

I just bought the iU2 and am wanting to use with my iPad app, Vocalive. Is it compatible?

Hello  Paul -

No problem at all.  The iU2 should play nicely with IK Multimedia's Vocalive.  Records on iOS devices using the Tascam iOS app and most other iOS applications

With the VocaLive app you can record (single or multi-track), sing along with your iPod song library (with voice cancel included), and warm up with the included vocal tools giving you the most complete, portable vocal solution. Plus, you can use you iOS device live on stage as your main vocal processor and take full control over your effects.

Had mine about a week now and I'm pretty happy. Using it with an iPad 3 and Garage Band. Had some initial teething problems with latency and random sound cutout (involving a number of unplug/plugin cycles) but solved by closing all running apps, turning off wireless and enabling flight mode i.e. the iPad was hosed.

The build quality is not tough but it's nice and light and I reckon it would bounce pretty well as a result - don't need to build things like a house brick if they are light :-)

The built in iPad connector is ludicrously short, 15cm's ish, this has given me some annoying problems with where to put stuff in my studio - I suspect I might take the iU2 apart and put in a much longer connector!

I love the ability to listen to the input and output signal or mix - it's great to listen to the input sound at setup time to get the signal in just right.

One negative issue that's a real bummer: the headphone output is only 10mw+10mw. That is probably ok with your average 32ohm headphones but my Beyer Dynamic's studio can's are 80ohm so you get precious little volume out ..... not that I care as I have a mixer with a headphone amp attached, would be nice for mobile applications though.

Waited and bought this interface over the iODock, due to digital conversion rather than using iPad audio circuits.  Audio quality in/out of this unit is stellar, I do wish it had a slide-in 'dock', but the quality and ease of use is great.  My third interface from Tascam, another hit out of the park!

Does it overdub though?  With the tascam IM2 I cant overdub or even listen to the track I just laid down without disconnecting the device!  It drives me wild and Im bout to throw it away.  If this thing lets you listen to what you just recorded and had the ability to overdub Ill trade up in a heartbeat!  Please let me know!

Hello Rob -

You will need an app that allows you to record tracks separately, overdub, and then create a mix.  Check out Portastudio for iPad

"Record one track at a time using the built-in mic or a headset microphone connection, monitoring on authentic VU meters. A cassette transport with position counter tracks your position while you mix with level, pan and EQ controls. When you're ready to mix, the built-in mixdown function saves your song as a CD-quality WAV file. Your mix appears in iTunes when you're finished, ready to share with friends and bandmates."