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Bock Audio


Bock Audio iFET Large-diaphragm Dual Mode Condenser FET Microphone

Please contact me with information about availability and pricing for Bock Audio iFET Large-diaphragm Dual Mode Condenser FET Microphone

The Bock Audio iFET is a Dual Mode large diaphragm condenser FET studio microphone. Essentially the iFET has a single capsule and transformer, that is shared & powered by two separate microphone amplifiers. A unique design, there is a switch on the front of the body to select between the two modes - V & I. The vocal mode offers better high frequency response, has a higher proximity effect and higher sensitivity. The instrumental setting allows for a Higher SPL, less proximity effect and lower sensitivity. Like all Bock Audio products, the iFET is hand built in the USA.


      The IFET is a phantom-powered FET condenser mic designed to capture the high SPL handling and sound of the classic FET47. The unique sonic signature of this mic is not easily replaced by modern microphone alternatives. To increase the value and versatility of the IFET, Bock added a second set of FET electronics for a second “sound”, accessed via a switch.

      Patterns: Cardioid
      Frequency Range: 20Hz to 16kHz, +/-2dB
      Sensitivity: 9mV/Pa (“i” mode), 12mV/Pa (“V” mode)
      Equivalent Noise: 18dB (“A” weighted) 32dB (unweighted)
      Distortion vs.SPL @1kHz: 126dB = 0.5% THD
      (“V” mode) 127dB = 1% THD
      129dB = 2% THD
      (increasing distortion is exponential, complex 3rd harmonic)
      Impedance: 200 Ohms true transformer balanced
      Recommended load: 2k Ohms
      Dynamic range
      (maxSPL-"A"noise): 94dB
      S/N (94dB-noise): 76dB “A”, 62dB unweighted
      Capsule size: 1” diameter, single backplate K47 type
      Power Consumption: 1.2mA@48Vdc
      Dimensions: 2” dia x 8.5” oal (52x216mm)
      Weight: 1lb 9.3oz (1.58lbs) =716g
      Shipping weight: 2 lbs
      Power Supply: user provided
Need more info on the Bock Audio iFET? Click HERE for the official product listing >>>