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Alesis iO2 Express USB Audio Interface

You Pay: $69.00
Product Highlights
  • 2-Channel
  • 24-Bit / 48kHz
  • 1/4" Phone Line & XLR Mic Input
  • 1/4" TRS Insert Connection
  • 48V Phantom Power
  • USB Bus Powered
  • Includes Cubase LE Software

The Alesis iO2 Express USB Audio Interface is an affordable yet efficient way to improve your computer's audio quality in home and project recording applications. The iO2 is a USB powered audio interface with 2 line/guitar switchable inputs, 2 balanced XLR microphone inputs with 48V phantom power, 1/4" phone TRS inserts for connecting external processors, stereo and headphone outputs for monitoring.

The layout on the compact iO2 delivers easy accessibility to level controls, line switching, etc. A copy of Steinberg Cubase LE is included for users who are just getting started with software audio recording. The Alesis iO2 is easy to install and operate, and is well suited for musicians, singers, podcasters, DJs, audio for video applications and much more.

Two-channel computer audio recording interface
Record up to 24-bit, 48kHz audio into virtually any software
Monitor sessions with balanced studio monitor and headphone outputs
High-quality A/D and D/A converters, discrete-design preamps, 48V phantom power
Inputs for microphones, line-level sources, and instruments including guitars
Tricolor stereo level meter and lighted status indicators for visual monitoring
MIDI Input and Output jacks for playing and controlling software with instruments
USB bus powered - no external power supply needed
System Requirements Mac: OS X 10.2+
Windows: XP, Vista, or 7
USB port
Frequency Response MIC/LINE IN to USB OUT: ±0.1dB
MIC/LINE IN to MAIN OUT (through ADC/DAC) ±0.35dB
Signal-to-Noise Ratio MIC/LINE IN (balanced) to INSERT OUT: 110dB A-weighted, input impedance at XLR or 1/4" jack = 600 Ohms
GUITAR IN (unbalanced) to INSERT OUT: 99dB A-weighted, input impedance at 1/4" jack = 600 Ohms
MIC/LINE IN (balanced) to USB OUT: 99dB A-weighted, input impedance at MIC or LINE jack = 600 Ohms
GUITAR IN (unbalanced) to USB OUT: 94dB A-weighted, input impedance at 1/4" jack = 600 Ohms
MIC/LINE IN (balanced) to MAIN OUT (through ADC/DAC): 97dB A-weighted, input impedance at MIC or LINE jack = 600 Ohms
MIC/LINE IN (balanced) to MAIN OUT (through direct monitor): 95dB A-weighted, input impedance at MIC or LINE jack = 600 Ohms
THD & Noise MIC/LINE IN (balanced) to INSERT OUT: <0.001% Input Gain = minimum, 1KHz input signal, INSERT OUT = 5.7dBV
GUITAR IN (unbalanced) to INSERT OUT: 0.034% Input Gain = minimum, 1KHz input signal, INSERT OUT = 5.3dBV
MIC/LINE IN (balanced) to USB OUT: 0.003% Input Gain = minimum, 1KHz input signal, USB OUT = -0.3dBFS
GUITAR IN (unbalanced) to USB OUT: 0.034% Input Gain = minimum, 1KHz input signal, USB OUT = -0.7dBFS
MIC/LINE IN (balanced) to MAIN OUT (through ADC/DAC): 0.005% Input Gain = minimum, 1KHz input signal, MAIN OUT = 5.6dBV
MIC/LINE IN (balanced) to MAIN OUT (through direct monitor): 0.006% Input Gain = minimum, 1KHz input signal, MAIN OUT = 5.6dBV
Alesis iO2 Express USB Audio Interface
  • iO2 Express Interface
  • Software CD
  • USB Cable
  • 1 Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    AlesisiO2 Express USB Audio Interface
     
    4.2

    (based on 25 reviews)

    Ratings Distribution

    • 5 Stars

       

      (15)

    • 4 Stars

       

      (5)

    • 3 Stars

       

      (2)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (3)

    87%

    of respondents would recommend this to a friend.

    Pros

    • Easy to use (15)
    • Compact (11)
    • Excellent sound (5)
    • Good audio (5)
    • Lightweight (4)

    Cons

      Best Uses

      • Home studio (11)
      • Amateur recording (10)
      • Performances (3)
      • Pro audio / DJ / mixing (3)
      • Professional recording (3)
        • Reviewer Profile:
        • Experienced (12), Professional musician (3)
        • Primary use:
        • Personal (4)
        • Computer Platform:
        • PC (3)

      Most Liked Positive Review

       

      Surpising results

      Easy to hook up, but the included Cubase software is a total pain to activate--so I downloaded Audacity for free online which works fine. The bit rates the maunual tells you to...Read complete review

      Easy to hook up, but the included Cubase software is a total pain to activate--so I downloaded Audacity for free online which works fine. The bit rates the maunual tells you to assign for Windows 7 arent available, but I picked the closest one and the unit worked fine. You do have to modulate the gain/volume quite a bit to get the best results. I use the unit with a Korg M50 Keyboard and was shocked at how good the WAV file sounded with better than CD quality.

      VS

      Most Liked Negative Review

       

      USB drivers dont work with most of my au

      Having trouble with IO 2 express connecting with most of my audio programs. Cubase works well of course. Could be compatiblity with windows XP64 pro. Nice unit built very solid a good value...Read complete review

      Having trouble with IO 2 express connecting with most of my audio programs. Cubase works well of course. Could be compatiblity with windows XP64 pro. Nice unit built very solid a good value for price.

      Reviewed by 25 customers

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      Displaying reviews 1-20

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      5.0

      Good quality!

      By Danny

      from Minneapolis, MN

      Comments about Alesis iO2 Express USB Audio Interface:

      I record vocals and guitar so this two track interface is exactly what I need.

      Share this review

       
      3.0

      Nice but a little weak

      By John

      from Fort Lauderdale, Florida

      About Me Experienced

      Verified Buyer

      Pros

      • Easy To Use

      Cons

      • Weak

      Best Uses

      • Professional Recording

      Comments about Alesis iO2 Express USB Audio Interface:

      I find most video places put audio in second place. While the iO2 is an easy hook up, you really have to crank the pots for any quality volume. And then it's weak at best. I used to use a Delta 88, but those are long gone. I'm sure there are better products on the market, but this was a good price, and of course NOBODY beats B&H when it comes to service. Since I bought it I will tolerate it for now. I used to shop at [*]. What they don't know about customer service would fill volumes. All the best to B&H. Glad I found you.

      Share this review

       
      5.0

      Easy to Use for small studios!

      By techie in the dark

      from maryland

      About Me Experienced

      Verified Buyer

      Pros

      • Compact
      • Easy To Use

      Cons

        Best Uses

        • Amateur Recording
        • Events

        Comments about Alesis iO2 Express USB Audio Interface:

        We use this daily with a PC laptop and a Mac. Very simple to use and setup. Our students use it to record audio very frequently with no issues. We also use it for field shoots and to convert audio to a computer in order to stream our productions.

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        5.0

        Great quality, easy to use

        By Rab

        from New York, NY

        Comments about Alesis iO2 Express USB Audio Interface:

        Very easy to use, no hassle. Picks up sound really well.

        Share this review

         
        4.0

        iO2 Express USB Audio Interface by Alesi

        By wen

        from Alhambra, ca

        Verified Buyer

        Pros

        • Easy To Use

        Cons

          Best Uses

            Comments about Alesis iO2 Express USB Audio Interface:

            A super portable, compact audio interface for my Mac.
            WIth built in pre-amps and 48-volt phantom power it features 2 XLR inputs with a 1/4 inch TRS instrument jack and insert jack. It can accept line level signals or a direct guitar connection by simply flicking the switch on the front.
            It's cheap, it's useful and looks nice and just gets the job done. This will be certainly living in my laptop bag and going with me when I just have to capture an idea!

            Share this review

             
            5.0

            audio and midi routing

            By Manic Music Teacher

            from Troy, ID

            About Me Professional Musician

            Pros

            • Compact
            • Easy To Use

            Cons

              Best Uses

              • Amateur Recording
              • Home Studio

              Comments about Alesis iO2 Express USB Audio Interface:

              This unit is "class compliant" which means that with a modern machine, running modern OS (except possibly windoze 8) it should work. I bought four of them and they have stood up to fairly vigorous student use (7-12 grades) for a full year.

              The trick is to figure out how your system routes the signal. We had all kinds of trouble until we figured this out. Both the computer itself and your DAW have to be set to use the signal to/from the IOS. It should show up as "mono 1 io2" or something like that. Sometimes the computer seems to switch these settings at random, but it could just be students doing it. It is a great deal for the money.

              I wish the unit felt a bit sturdier, but like I said, it has held up.

              Share this review

               
              5.0

              Works with Ardour

              By Jack

              from Omaha, NE

              About Me Experienced

              Verified Buyer

              Pros

              • Compact
              • Easy To Use
              • Excellent Sound
              • Low Distortion

              Cons

                Best Uses

                • Amateur Recording

                Comments about Alesis iO2 Express USB Audio Interface:

                This interface is very convenient for small scale recording, and has simple and straightforward controls. I use it for direct bass guitar recording and mic'd vocals and other guitars. The USB-powered interface saves a lot of set-up convenience.

                All features worked for me out-of-the-box with the Linux-based DAW, Ardour.

                Share this review

                 
                5.0

                Works wonderful

                By EL BEBO

                from Lowell, MA

                About Me Experienced

                Verified Buyer

                Pros

                • Easy To Use
                • Excellent Sound
                • Powerful

                Cons

                  Best Uses

                  • Home Studio

                  Comments about Alesis iO2 Express USB Audio Interface:

                  I use this product for my mic head phones working on the volumes...... This that are great about it are its something that keep my home studio well organized and everything is close by.. Honestly I haven't found anything not great about it it's the best product I have bought for my home studio

                  Share this review

                   
                  4.0

                  Good starting unit for audio recordint.

                  By Bobby

                  from Charleston, SC

                  About Me Experienced

                  Verified Buyer

                  Pros

                  • Compact
                  • Easy To Use
                  • Excellent Sound
                  • Low Distortion

                  Cons

                    Best Uses

                    • Amateur Recording
                    • Home Studio
                    • Professional Recording

                    Comments about Alesis iO2 Express USB Audio Interface:

                    Can be used to interface audio from voice and input from MIDI instruments.

                    Share this review

                     
                    4.0

                    Enough for any small home studio

                    By Kwerty

                    from St. Petersburg, Russia.

                    About Me Experienced

                    Verified Buyer

                    Pros

                    • Clear Sound
                    • Compact
                    • Easy To Use

                    Cons

                    • No MIDI IO

                    Best Uses

                    • Home Studio
                    • Mobile DJ
                    • Vlog and Podcasting

                    Comments about Alesis iO2 Express USB Audio Interface:

                    Very good product. Amazing Quality/Price ratio.

                    Share this review

                     
                    5.0

                    little giant

                    By leuyoung

                    from PR

                    About Me Experienced

                    Verified Buyer

                    Pros

                    • Compact
                    • Easy To Use
                    • Low Distortion

                    Cons

                      Best Uses

                      • Home Studio

                      Comments about Alesis iO2 Express USB Audio Interface:

                      user friendly,more than expected!
                      recommended!

                      Share this review

                       
                      4.0

                      Works Great

                      By G

                      from Tahlequah, OK

                      About Me Novice

                      Verified Buyer

                      Pros

                      • Easy To Use
                      • Excellent Sound

                      Cons

                        Best Uses

                        • Amateur Recording
                        • Home Studio

                        Comments about Alesis iO2 Express USB Audio Interface:

                        For the price this thing works wonders, it does all I need it to do.

                        Share this review

                        (1 of 8 customers found this review helpful)

                         
                        1.0

                        Alesis io2 Is In Need of Improvement

                        By Warm Tube Glow

                        from Minneapolis, Minnesota

                        About Me Singer and Guitarist

                        Pros

                        • USB powered

                        Cons

                        • Not durable

                        Best Uses

                        • Dynamic microphone

                        Comments about Alesis iO2 Express USB Audio Interface:

                        I thought that this Alesis io2 would be a good way to add two tracks and send it via USB to multi-track recording software. It's made so that two separate tracks and multi channels are possible. That's a step up from the lower end products still out there. At first, I liked the basic features yet, most plug in powered USB mixers have many more than this USB powered IO device. It worked o.k. at first yet, the phantom power seems too weak of a boost for my preference. The phantom power that it comes with, is only enough to activate a condenser microphone and make the signal register and function. You could tweak the signal once it's in the software but, I have seen phantom power that was much more intense, warmer and fuller. What broke mine is when I connected my effects processor and my guitar to one track/channel, and then my microphone and tube pre-amp, to the second track/channel. That was the last time it ever worked. I do not think that should have blown it out, its normal activity for musicians and engineers to need to chain things together and make circuits. I tried to fix it, by adjusting and checking the software settings, sample rate, buffers, sound card, and drivers. But, this thing is toast; and I only had it for a year. This device would be a fair/good deal, if it was at a much lower price, came with a 10 year warranty and if it was durable; able to handle both ordinary and more complicated applications, and also if it came with improved phantom power. They really need to improve this thing and drop the price. Otherwise, you pay a spiked price for junk that they will not back up past 45 days, or whatever the policy and warranty. I highly recommend, that if you can plug into a power source, buy a real mixer with USB instead. A wall plug in powered USB mixer with phantom power is usually always higher quality, has more features, greater value for a comparably better price. Check those out instead of this toy, and if you need a USB powered IO device, maybe try something else and put a warranty on it.

                        • Primary use:
                        • Personal
                        • Computer Platform:
                        • PC

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                        (1 of 6 customers found this review helpful)

                         
                        1.0

                        Alesis i02 Works Great Until It Breaks!

                        By Warm Tube Glow

                        from Minneapolis

                        About Me Guitarist and singer

                        Pros

                        • It has many features

                        Cons

                        • It did not last very long
                        • Not Very Powerful

                        Best Uses

                        • A low db vocal recording

                        Comments about Alesis iO2 Express USB Audio Interface:

                        I thought that this Alesis io2 would be a good way to add two tracks and send it via USB to multi-track recording software. At first, I was impressed by all the features, and that it made two separate tracks/channels possible. It worked great at first yet, the phantom power seems too weak of a boost for my preference. I connected one channel to an effects processor and my microphone track up to a tube pre-amp, and that was the last time it ever worked. I do not think that should have blown it out, I even tried adjusting the software and changing settings and drivers. This thing is toast; I had it for a year and paid about $[$]. At some places these things are up to $[$]! This device would be a fair/good deal, if it was at a much lower price, if it came with a 10 year warranty, if it was durable; able to handle both ordinary and more complicated applications, and if it came with improved phantom power. They really need to improve this thing and drop the price. Otherwise, they are just spiking the price for junk that they will not back up.

                        • Primary use:
                        • Personal
                        • Computer Platform:
                        • PC

                        Share this review

                         
                        5.0

                        Awesome product

                        By KillerB mic extrodinary

                        from San Mateo CA

                        Verified Buyer

                        Comments about Alesis iO2 Express USB Audio Interface:

                        This audio interface works great . Just plug in your mic and guitar start up audacity or whatever multi-track and start recording. You can mix your channels even plug in a piano or drum set into the midi. It does everything I need and was very affordable.

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                        (1 of 1 customers found this review helpful)

                         
                        5.0

                        Works flawless with Ipad2 via Camera kit

                        By Bachcur

                        from houston, TX

                        About Me Guitar enthusiast

                        Verified Reviewer

                        Pros

                        • Versatile

                        Cons

                          Best Uses

                          • Educational Purposes
                          • Multimedia

                          Comments about Alesis iO2 Express USB Audio Interface:

                          The Alesis Io2 is a simple to use product. Specially when used with an ipad2 using Garageband.
                          When connected to Roland GI 20 midi guitar you can use the ipad to compose, improvise, record and just have fun using a Godin Guitar as a controller. You need an external USB power Hub to have the right power to get the signal into the ipad.
                          What a dream come true.

                          The Cubase is a oem product with ZERO support. It is very complicated to use. It is almost useless when you compare to the new generation software such as GarageBand on an ipad2. It is made for programmers and not reagular musicians.

                          • Primary use:
                          • Personal
                          • Computer Platform:
                          • Mac

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                          5.0

                          Instant gratification

                          By bubba

                          from houston, tx

                          About Me Amateur recordist, Bassist, Guitarist, Keyboardist

                          Verified Buyer

                          Pros

                          • Ease of setup
                          • Price

                          Cons

                          • None

                          Best Uses

                          • Basic home studio

                          Comments about Alesis iO2 Express USB Audio Interface:

                          Bought this to replace a Tascam interface that used 20% of CPU even when it was idle. The Alesis was recognized as soon as I plugged it into my Windows XP laptop, did everything well right out of the box. Uses hardly any CPU even when it's playing/recording. I'm not using the mic inputs because I use a real mixer in my studio, but everything else on it works just like it should.

                          • Primary use:
                          • Personal
                          • Computer Platform:
                          • PC

                          Share this review

                           
                          5.0

                          Good for Live Streaming also!

                          By Arturo De la Mora

                          from Weston, FL.

                          About Me Experienced

                          Verified Buyer

                          Pros

                          • Easy To Use
                          • Excellent Sound
                          • Versatile

                          Cons

                          • Weak

                          Best Uses

                          • Amateur Recording
                          • Home Studio
                          • Live Streaming
                          • Mobile DJ
                          • Performances

                          Comments about Alesis iO2 Express USB Audio Interface:

                          I use for webcasting with New Generation Streaming Live service. It is easy to connect and you get full control of the audio is entering the computer.

                          Share this review

                          (1 of 1 customers found this review helpful)

                           
                          5.0

                          big improvment

                          By mhm...

                          from parowan, utah

                          About Me Experienced

                          Verified Buyer

                          Pros

                            Cons

                              Best Uses

                                Comments about Alesis iO2 Express USB Audio Interface:

                                I was kind of doubtful that this could make such a big improvement. Everybody made such a big deal about sound cards though so i looked into it. It makes a big difference even on iTunes and other prerecorded stuff, not just for recording. I listened to a song i recorded before i got this and the improvement was comparable to upgrading mics. I was in need of an xlr input on my computer so this knocked out 2 birds with one stone. Great deal for that reason. The headphone and main out both have different volume knobs, i really liked that. You also have a knob that mixes the usb computers noise with the direct in, so the mics and what not, so if the mics overpower your computer playback you can keep your mic gain at the sweet spot and just adjust the monitor mix(is what its called). the mic/line and guitar switch could be really handy for somebody without a good mic, i didn't use it much but it sounded good to me. Having 2 channels is great, but it records them as stereo. mic input 1 is left and 2 is right. i just record them mono and it doesn't do that. double it up if you want it stereo and make one left and one right. There's a mono switch on the io2 that makes the sound mono so you don't just listen with one ear if only using one mic (doesn't make computer playback mono) it still records stereo when that's on, but that should be easy to fix on your recording program. The phantom power switch applies to both channels so you shouldn't mix a dynamic and condenser mic, but you can if your brave, some dynamics aren't hurt by phantom power I've heard. The main out is 1/4" and there is one for left and right, but I've been using the headphone out for my stereo, which also is 1/4". My last problem is that it wont record 44.1 hz properly. it does one track and then the rest it plays at a different hz which makes them play fast and high pitched. so Ive had to record 48 which is fine, better in the end even, and better sounding, that's just to high for a cd or youtube, but when you export a song i found out it can be done in 44.1 hz, so you have the opportunity to listen to your recording at a particularly high quality. cd quality is also 16 bit, this records 24, you just should export the song at cd quality. that just helps hear the song better for mixing it and what not. Ive loved this thing, i highly recommend it, everything sounds much more defined then the old sound card. But cubase was bad, to confusing, probably good when you get used to it though. I just stuck with audacity.

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                                5.0

                                Geat deal!

                                By AHIGH

                                from Louisville, KY

                                About Me Professional Musician

                                Verified Buyer

                                Pros

                                • Clear Sound
                                • Compact
                                • Easy To Use
                                • Lightweight
                                • Versatile

                                Cons

                                  Best Uses

                                  • Amateur Recording
                                  • Events
                                  • Home Studio
                                  • Performances

                                  Comments about Alesis iO2 Express USB Audio Interface:

                                  No problems with install on windows XP.
                                  Low latency with ASIO for all drivers.

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