The Heiserman H47Fet is a high-specification large-diaphragm condenser microphone designed as a modern, phantom-powered recreation of the iconic 47 FET, meticulously engineered for studio-grade vocal, instrument and kick drum applications.
Classic Sound Reimagined
The H47Fet delivers the detailed, smooth and versatile sonic character of the original 47 FET, offering a full frequency response with a gentle presence boost that enhances clarity and definition across a wide range of recording scenarios. Heiserman developed this microphone over a two-year period, rigorously testing it against vintage reference units to ensure authenticity in both sound and performance.
Precision Engineering
Manufactured entirely in the USA, the H47Fet embodies Heiserman’s uncompromising standards in design, construction and component quality. The company oversees every aspect of production, from the capsule and head basket to the microphone body and plating, ensuring both technical excellence and durability. The result is a microphone that not only sounds exceptional but offers robust, studio-ready reliability.
HK47 Capsule Technology
The heart of the H47Fet lies in Heiserman’s proprietary HK47 capsule. Designed, manufactured and assembled entirely in-house, the HK47 represents the pinnacle of capsule refinement, achieving an optimal balance of smoothness, fullness and presence. This capsule provides consistent high-quality performance that meets the demands of professional studio environments.
True to the Original Circuit
The circuit design remains faithful to the original 47 FET schematic, employing 100 percent through-hole components for reliability and sonic integrity. Modern low-noise field-effect transistors (FETs) reduce self-noise, while high-grade Wima film capacitors, precision resistors, polystyrene and tantalum capacitors maintain the microphone’s vintage tonal character with improved consistency and low distortion.
Integrated Pads and High-Pass Filter
The H47Fet includes two dedicated pad switches, offering -10 dB and -6 dB attenuation options. Engineers often combine both pads to capture high-SPL sources such as kick drums without distortion, made possible by the inclusion of a custom-designed output transformer unique to this model. The microphone also features a 200 Hz high-pass filter switch, positioned on the base of the body, providing effective control over low-frequency rumble and proximity effect.
Protective Transport Case
Rejecting outdated wooden boxes prone to damage, Heiserman supplies the H47Fet in a rugged Pelican case with laser-cut, cross-linked polyethylene foam for secure, shockproof and waterproof storage, ensuring the microphone remains protected in transit and studio environments.