JFETs are key elements in high-impedance devices like MEMS sensor buffers, microphone preamplifiers or Moving Magnet (MM) phono preamplifiers. (Don’t misfit with MOSFETs!). Nevertheless, there are somehow controversial components for Hi-fi aficionados. Generally, BJTs high […]
Capacitors come in two main types: electrolytics and non-electrolytics. There are not ideal elements, less to say, and intrinsically present Equivalent Series Resistance (the famous ESR), current leakage, dielectric absorption and, as usual with real […]
Resistors have two main issues when you want to design a low noise, low distorsion system : noise and linearity. Imagine also that you design a RIAA filter : tolerance and linearity are major concerns […]
Op-amps are used everywhere today, especially in audio design because of their outstanding price-performance ratio against discrete components. But in the premium audio purist world, op-amps are often considered as little daemons, children of the […]
