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Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G

B&H # FOAR4I MFR # AR-4I
Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G

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Product Highlights

  • Improves Sound Quality of Captured Video
  • Stereo Audio Recording
  • Uses Dock Connector & AD/DA Converter
  • Input Level Metering
  • Gain Control & Headphone Monitoring
  • 2 Threaded Tripod Mounts
  • Battery Powered: 2 x AAA
  • Sturdy Hand Grip Included
  • Setup App (Free Download From App Store)
  • Comes With Adapter for iPod touch 4G
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Questions? Ask our experts:

Designed to dramatically improve the sound quality of videos captured with your iPhone 4/4S, the Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G offers excellent quality stereo audio recording using the dock connector and built-in AD/DA converter. The device features LED input level metering, gain control and headphone monitoring.

The AR-4i is battery powered, and has a generous operation time of eight to ten hours. Two threaded tripod mounts offer compatibility with a tripod or camera rig, and a cold shoe accepts third party camera options. A dedicated, easy-to-use app for your iPhone 4/4S or iPod touch 4G is available as a free download from the Apple App Store. After you download it, you can easily control input level, microphone setting, equalization, filters, and more. In order to allow for compatibility with your fourth gen iPod touch, a dedicated adapter comes with the unit.

The audio quality and versatile operation of the AR-4i make it ideal for both professional and in-home applications. It's a perfect accessory for TV and radio reporting, live video streaming to the web, and even in-home use to help you create high quality home videos. Or if you regularly stream videos to web services like Twitter or U-Stream or use video upload sites like YouTube or Vimeo, you'll be able to start uploading videos with better sound.

Exceptional audio quality; record/playback via dock connector with built-in AD/DA converter
Equipped with 3 stereo inputs (line/mic) for using 2 of the 3 simultaneously for vertical or horizontal use
2 plug-in powered condenser cardioid type microphones with pop-shields included; third party microphones can also be used
4-dot level LED level meter for input monitoring
Thumb wheel input gain control
Headphone output for recording and playback monitoring
Long operation time: 8 to 10 hours with 2 x AAA alkaline batteries
Sturdy hand grip is included
2 threaded tripod mounts on the bottom side for use with a tripod, camera rigs, etc.
Cold shoe allows for use of third party camera options
Setup App can be downloaded free from the Apple App Store; for setting Pan (L/C/R), Low Cut Filter, Limiter, and more
Precision-cut plastic adapter with elastic pad on the back holds a fourth gen iPod touch
Certified as "Made for iPhone" to meet Apple performance standards
UPC: 636827301657
Input
Connector 1/8" (3.5 mm) diameter stereo mini
Input Impedance More than 2k ohm
Gain -12 / -59 dB (variable)
Power 2.5 V (continuous)
LED 1 x level meter, 4-dot (doubles as system status indicator)
Headphones
Connector 1/8" (3.5 mm) diameter stereo mini
Load Impedance More than 16k ohm
Maximum Output 15 mW (32 ohm loaded, THD less than 0.1%)
Audio
Frequency Response 20 Hz / 20 kHz +-4 dB (Mic-phones / 15 mW / 32 ohm loaded)
Signal to Noise Ratio More than 73 dB (Mic-phones / input gain maximum)
General
Compatibility iPhone 4S - 16GB 32GB 64GB
iPhone 4 - 16GB 32GB
iPod touch 4th generation - 8GB 16GB 32GB 64GB (with the supplied adapter)
Power 2 x AAA batteries (alkaline 3V / Nih 2.4 V)
External Power Supply USB mini B type (5V)
Power Consumption 0.3 W
Dimensions (WxHxD) Including Protrusion: 28.9 x 4.2 x 1.9" (735 x 106 x 50 mm)
Hand Grip: 9.25 x 4.0" (235 x 101 mm) diameter (excluding screw)
Weight Main: 7.1 oz (200 g)
Hand Grip: 3.6 oz (102 g)
Packaging Info
Package Weight 1.15 lb
Box Dimensions (LxWxH) 7.8 x 5.0 x 2.2"
Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G
  • Hand Grip
  • 2 x Cardioid Plug-In Mics
  • 2 x AAA Batteries (Manganese)
  • Adapter for iPod touch 4G
  • 1-Year Warranty
  • REVIEW SNAPSHOT®

    by PowerReviews
    FostexAR-4i Audio Interface for iPhone 4/4S & iPod touch 4G
     
    4.3

    (based on 12 reviews)

    Ratings Distribution

    • 5 Stars

       

      (8)

    • 4 Stars

       

      (2)

    • 3 Stars

       

      (1)

    • 2 Stars

       

      (0)

    • 1 Stars

       

      (1)

    89%

    of respondents would recommend this to a friend.

    Pros

    • Good audio (8)
    • Lightweight (6)
    • Simple controls (6)
    • Durable (5)
    • Versatile (5)

    Cons

    No Cons

    Best Uses

    • Travel (3)
      • Reviewer Profile:
      • Business professional (6), Avid listener (3)
      • Primary use:
      • Business (7), Personal (5)
      • Was this a gift?:
      • No (11)

    Most Liked Positive Review

     

    Live rock band a/v recordings better!

    I combined the AR-4i by Fostex with my iPhone 4S to record performances of our locally-touring, alternative rock band. What an improvement in sound quality of our recordings!
    Read complete review

    I combined the AR-4i by Fostex with my iPhone 4S to record performances of our locally-touring, alternative rock band. What an improvement in sound quality of our recordings!

    Admittedly, I am a novice in the a/v world, so I searched for inexpensive "hacks" to quickly improve the quality of our a/v recordings to keep our website up-to-date with the most recent clips of our live gigs.

    My iPhone fit easily and securely into the device. I attached this setup to my tripod using only the threaded tripod mount on the unit. In less than one minute from unboxing the AR-4i, I was test recording (I had previously downloaded the free dedicated app to allow sound monitoring on my phone).

    After learning a few basics, I was able to monitor the recording of incoming sound during the gigs using only my everyday "earbud" headphones plugged into the device. I eliminated "clipping" (I just learned that term:) and other sound distortions that had been plaguing our previous recordings. By adjusting the volume and direction of each of the two mics (included with the AR-4i) I was able to capture ALL of our music sound (previously, the bass line was muted or even missing in some recordings, and our bassist really hated that!)

    While the unit is suggested for the "recreational" rather than "professional" a/v user, it has been a valuable primer for me to learn basic audio recording concepts. As my skills improve, I hope to purchase even more sophisticated a/v equipment, and learn mixing techniques. For now though, the dramatically better-than-standard quality of the audio captured from this device nicely parallels our band's improving musicianship and performances.

    Overall, the AR-4i is a light, portable, high-quality, unit, and it is an absolute bargain at its very modest price! I highly recommend this for anyone who wishes that the audio quality of the videos they take could match the (relatively) high-quality camera already onboard their newer-model iPhone or iPod.

    VS

    Most Liked Negative Review

     

    Why Weight?

    I was thrilled when I finally purchased this product. It is solid in construction and the ability to both stabilize the camera for better video and have more effective audio control (with stereo)...Read complete review

    I was thrilled when I finally purchased this product. It is solid in construction and the ability to both stabilize the camera for better video and have more effective audio control (with stereo) is fantastic. Being able to manually adjust the audio level with a small wheel also fantastic.

    However if I wanted something as heavy as this with a steel handle, I would bring along my regular video camera or DSLR! And the cavernous battery compartment to place the tiny AAA batteries is another peculiarity. These issues knock two stars off my rating. It is insanely annoying that the designers couldn't recognize these issues.

    Summary: Excellent product, performs well but on the physical side, needs some rethinking.

    Reviewed by 12 customers

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    Displaying reviews 1-12

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    (0 of 1 customers found this review helpful)

     
    5.0

    Live rock band a/v recordings better!

    By A/V Julie Probie

    from Chicago, IL

    About Me Creative, Practical

    Verified Buyer

    Pros

    • Clear Sound
    • Durable
    • Easy Controls
    • Lightweight
    • Versatile

    Cons

      Best Uses

        Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

        I combined the AR-4i by Fostex with my iPhone 4S to record performances of our locally-touring, alternative rock band. What an improvement in sound quality of our recordings!

        Admittedly, I am a novice in the a/v world, so I searched for inexpensive "hacks" to quickly improve the quality of our a/v recordings to keep our website up-to-date with the most recent clips of our live gigs.

        My iPhone fit easily and securely into the device. I attached this setup to my tripod using only the threaded tripod mount on the unit. In less than one minute from unboxing the AR-4i, I was test recording (I had previously downloaded the free dedicated app to allow sound monitoring on my phone).

        After learning a few basics, I was able to monitor the recording of incoming sound during the gigs using only my everyday "earbud" headphones plugged into the device. I eliminated "clipping" (I just learned that term:) and other sound distortions that had been plaguing our previous recordings. By adjusting the volume and direction of each of the two mics (included with the AR-4i) I was able to capture ALL of our music sound (previously, the bass line was muted or even missing in some recordings, and our bassist really hated that!)

        While the unit is suggested for the "recreational" rather than "professional" a/v user, it has been a valuable primer for me to learn basic audio recording concepts. As my skills improve, I hope to purchase even more sophisticated a/v equipment, and learn mixing techniques. For now though, the dramatically better-than-standard quality of the audio captured from this device nicely parallels our band's improving musicianship and performances.

        Overall, the AR-4i is a light, portable, high-quality, unit, and it is an absolute bargain at its very modest price! I highly recommend this for anyone who wishes that the audio quality of the videos they take could match the (relatively) high-quality camera already onboard their newer-model iPhone or iPod.

        • Primary use:
        • Personal
        • Was this a gift?:
        • No

        Share this review

        (1 of 1 customers found this review helpful)

         
        3.0

        Why Weight?

        By Greg

        from Singapore

        About Me Parent, Video Professional

        Verified Buyer

        Pros

        • Clear Sound
        • Easy Controls

        Cons

        • Heavy

        Best Uses

          Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

          I was thrilled when I finally purchased this product. It is solid in construction and the ability to both stabilize the camera for better video and have more effective audio control (with stereo) is fantastic. Being able to manually adjust the audio level with a small wheel also fantastic.

          However if I wanted something as heavy as this with a steel handle, I would bring along my regular video camera or DSLR! And the cavernous battery compartment to place the tiny AAA batteries is another peculiarity. These issues knock two stars off my rating. It is insanely annoying that the designers couldn't recognize these issues.

          Summary: Excellent product, performs well but on the physical side, needs some rethinking.

          • Primary use:
          • Personal
          • Was this a gift?:
          • No

          Share this review

           
          5.0

          EASY as pie to use

          By Angry ROO

          from California

          About Me Business Professional

          Verified Buyer

          Pros

          • Clear Sound
          • Easy Controls
          • Versatile

          Cons

            Best Uses

              Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

              I took it out of the box and started to use it 2 minutes later.

              • Primary use:
              • Business
              • Was this a gift?:
              • No

              Share this review

               
              5.0

              Works really well very satisfied

              By Eric

              from Morristown NJ

              About Me Business Professional, Gearhead, Practical

              Verified Buyer

              Pros

              • Clear Sound
              • Durable
              • Lightweight

              Cons

                Best Uses

                • Travel

                Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                I took it out of the box, threw in 2 AAA batteries and took it with me to an event where I recorded a ton of video in different settings, the audio was so much better. I would recommed this to anyone that is in need of shooting video with your iphone.

                • Primary use:
                • Business
                • Was this a gift?:
                • No

                Share this review

                 
                5.0

                Good product

                By KJB

                from Minnesota

                About Me Business Professional

                Verified Buyer

                Pros

                • Lightweight
                • Versatile

                Cons

                  Best Uses

                    Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                    Like the product.

                    • Primary use:
                    • Personal

                    Share this review

                     
                    5.0

                    Great device for iPhone Video Recording!

                    By BigAlNahow

                    from Woodstock, NY

                    Verified Buyer

                    Pros

                    • Clear Sound
                    • Easy Controls
                    • Lightweight
                    • Versatile

                    Cons

                      Best Uses

                        Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                        The Audio Quality is enhanced dramatically.
                        Video capture is aided by hand grip and larger area to hold while shooting.

                        • Primary use:
                        • Personal
                        • Was this a gift?:
                        • No

                        Share this review

                         
                        5.0

                        Amazing product

                        By Guillaume

                        from Arlington, VA

                        About Me Business Professional

                        Verified Buyer

                        Pros

                        • Clear Sound
                        • Durable
                        • Easy Controls
                        • Lightweight
                        • Versatile

                        Cons

                          Best Uses

                          • Travel

                          Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                          Used it for pro interviews. Amazing results.

                          • Primary use:
                          • Business
                          • Was this a gift?:
                          • No

                          Share this review

                           
                          5.0

                          Everyting as advertised!!!

                          By Master "G"

                          from Boston, MA

                          About Me Business Professional

                          Verified Buyer

                          Pros

                          • Clear Sound
                          • Durable
                          • Easy Controls
                          • Lightweight

                          Cons

                            Best Uses

                              Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                              Love my iPphone4 but was underwhelmed with the quality of the audio when using the video camera functionality. The AR-4i (couln't they come up with a better name?)solves that problem. My audio is now so much louder, so much clearer. My posts on You Tube and FB are so much more professional. This little guy is EXACTLY what I need. While it may not be suited for a high end user it is well designed, well crafted, well enginered.

                              • Primary use:
                              • Business
                              • Was this a gift?:
                              • No

                              Share this review

                               
                              4.0

                              Good....a few bugs

                              By jmc

                              from nashville,tn

                              About Me Business Professional

                              Verified Buyer

                              Pros

                              • Clear Sound

                              Cons

                                Best Uses

                                  Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                                  I have the iPhone 4 S....I love the sound quality.as advertised... the monopole makes it a much better platform to shoot form....
                                  BUT Im not sure the 4S likes that sync cradle...You have to take the phone out to upload a clip...just finding a few bugs...but overall..its worth tinkering with...the sound can be very touchy too...and not every earphone will work...so not perfect but would buy an updated one when offered..they are on the right track

                                  • Primary use:
                                  • Business
                                  • Was this a gift?:
                                  • No

                                  Share this review

                                  (4 of 4 customers found this review helpful)

                                   
                                  5.0

                                  Must Have for Quality Audio on iPhone

                                  By Mr. Nichols

                                  from Santa Paula, CA

                                  About Me Avid Listener

                                  Verified Buyer

                                  Pros

                                  • Durable
                                  • Easy To Set Up
                                  • External mic input option
                                  • Fits Well
                                  • Improves Audio Quality
                                  • Records in Stereo
                                  • Tripod mounts

                                  Cons

                                  • Tutorial would be nice

                                  Best Uses

                                  • Recording Interviews

                                  Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                                  I made a few short videos of interviews with artists for an art exhibit promotion. It was a good idea but the quality was lower than I wanted. I researched a lot and found out that the quality of the audio of an iPhone video counts for as much as 70% of the experience for viewers. Some form of external mic is essential. The AR-4i was just what I needed.
                                  I just slide my iPhone 4 with the bumper case taken off into the unit and it starts up. I can adjust the audio input and monitor it with earphones. The improvement in audio quality over the built-in mic is astounding.
                                  What I also like is that there are two tripod mounts for vertical or horizontal. I plan on also using this unit with a wireless clip-on mic I have and can easily plug that into one of the ports.
                                  I was testing out the unit in my patio and accidentally left it on the table after removing the iPhone. It rained all night with it outdoors. The next morning I removed the mics and windscreens and laid everything on a newspaper to dry. When I plugged in the iPhone later it worked just fine. It is solidly built and easy to use.
                                  The unit itself requires AAA batteries and are said to last 10 hours. I use a lot of AA batteries but will have to stock up on AAA for this unit. Not a big issue.
                                  I downloaded the free app that goes with it. I can use it to make adjustments. What I do not like is that there are not very complete instructions as to how to make the adjustments and how to maximize the settings for my particular use. I would like more extensive tutorials.

                                  • Primary use:
                                  • Business
                                  • Was this a gift?:
                                  • No

                                  Share this review

                                  (1 of 3 customers found this review helpful)

                                   
                                  1.0

                                  Not Ready for Prime Time

                                  By Legalvideo

                                  from Ohio

                                  About Me Avid Listener

                                  Pros

                                    Cons

                                      Best Uses

                                        Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                                        It produces static on a 4S and it disconnects the phone from the network when used with the AR-4i.

                                        • Primary use:
                                        • Business
                                        • Was this a gift?:
                                        • No

                                        Share this review

                                        (6 of 6 customers found this review helpful)

                                         
                                        4.0

                                        Great Audio on iPhone 4, problem with 4S

                                        By Pete

                                        from Central Connecticut

                                        About Me Avid Listener

                                        Verified Reviewer

                                        Pros

                                        • Adds Functionality
                                        • Easy To Set Up

                                        Cons

                                        • Problems with iPhone 4S

                                        Best Uses

                                        • Home Use
                                        • Travel

                                        Comments about Fostex AR-4i Audio Interface for iPhone 4/4S & iPod touch 4G:

                                        I used this on several occasions with my iPhone 4, and it performed flawlessly. The audio is fantastic. I recently upgraded to an iPhone 4S, and it is not working well. The audio playback produces static.

                                        In all fairness to Fostex, the specs claim that it is compatible with the iPhone 4. There is no mention of the 4S.

                                        There is the capability to update the firmware on the AR-4i. I hope that Fostex can get it working on the 4S as well.

                                        If you're an iPhone 4 user, this device will dramatically increase the audio qualtiy of your recordings.

                                        • Primary use:
                                        • Personal
                                        • Was this a gift?:
                                        • No

                                        Share this review

                                        Batteries & Chargers

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