The iFet has two different sets of electronics (mic amplifiers) sharing a K47 type capsule and large core specially designed Bock output transformer. These two “modes” of the Bock iFet offer two distinctly different sounds in one mic: the ideal FET mic for kick drums and a classic FET vocal mic for a wide variety of voices.
• The “I” mode employs a classic high SPL Class A discrete electronic package (one FET and four transistors) with improved HF and LF extension. The goal of the Bock iFet is to deliver the essential dynamic characteristics of the classic high SPL FET mic but offer a better top end and deeper bass than was possible in vintage days.
• The "V" vocal mode is a Class A adaption of a km84 circuit offering a simpler single path (one FET) and a warmer more intimate vocal sound. This amp has 4dB more sensitivity for lower SPL sources such as vocals. This is a beautiful sounding vocal mic!