Audio Interface for iPhone 4 / 4S


Fostex AR-4i Audio Interface for iPhone 4

The Fostex AR-4i features an AD/DA converter that offers high-quality stereo audio recording by connecting to your iPhone 4, iPhone 4S, or 4th Gen iPod Touch's dock connection. It also features LED input level metering, gain control, and headphone monitoring. Using the AR-4i allows you to dramatically increase the quality of the sound of the videos you take with your iPhone 4.

NOTES: This product was used by the manufacturer at a trade show, or by a sponsored artist.  The item may have some minor signs of use, but is in close-to-new condition.  This item carries the full warranty from the manufacturer.

iPhone shown in pictures above is NOT included.

The audio quality and versatile operation of the AR-4i make it ideal for both professional applications and domestic / consumer use. For example, in ENG applications where budgets are tight, the AR-4i turns the iPhone 4 into a high-quality audio / video capture device.

The AR-4i is designed for a variety of applications - whether you are a reporter, stream video to web services such as Twitter, U-Stream etc., use video upload sites such as YouTube and Vimeo, or if you just want to improve the sound of the videos you take on your iPhone 4/4S.

The dedicated, easy-to-use iPhone App (available at the App Store) allows for easy control of input level, microphone setting, equalization, filters, etc.

Fostex AR-4i Includes:

  • Fostex AR-4i iPhone 4 / 4S / 4th gen iPod Touch audio interface
  • 2x cardioid plug-in microphones
  • Handgrip
  • Carrying bag
  • 2x AAA batteries (manganese)

Fostex AR-4i Features:

  • Record/playback via Dock connector with built-in AD/DA converter
  • Equipped with 3x stereo inputs (Line/Mic) for using 2 of the 3 simultaneously for vertical or horizontal use
  • 2x plug-in powered condenser cardioid type microphones with pop-shields supplied. Third-party microphones can also be used
  • 4-dot LED level meter for input monitoring
  • Thumb wheel input gain control
  • Setup App supplied free from App Store for setting Pan (L/C/R), Low Cut Filter, Limiter, etc.
  • Headphone output for recording & playback monitoring
  • Long operation time with 2x AAA alkaline batteries for 8 to 10 hours
  • Supplied with a sturdy hand grip
  • 2x threaded tripod mounts on the bottom and side for use with tripod, camera rigs, etc.
  • Cold shoe for use of third-party camera options

Fostex AR-4i Specifications:

  • Input:
    • Connector: 3.5mm dia stereo mini
    • Input impedance: more than 2kOhm
    • Gain: -12 / -59.5dB (variable)
    • Plug-in power: 2.5V (continuous)
    • Level Meter LED: 4-dot (doubles as system status indicator)
  • Phones:
    • Connector: 3.5mm dia stereo mini
    • Loaded impedance: more than 16k ohm
    • Maximum output: 15mW (32 ohm loaded, THD less than 0.1%)
  • Audio:
    • Frequency Response: 20Hz / 20kHz +-4dB (Mic-Phones /15mW / 32 ohm loaded)
    • Signal to Noise Ratio: more than 73dB (Mic-Phones /Input gain maximum)
  • General:
    • Weight (approx): 0.44 lbs.
    • Power: 2x AAA batteries (alkaline 3V / Nih 2.4V)
    • External Power: USB mini B type (5V)
    • Power Consumption: 0.3W
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