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% THD129dB = 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
Bock iFet Manual