Mikrofonindgange

Mikrofonindgange, or microphone inputs, are the input connectors on audio equipment that receive signals from microphones. They are designed for low-level mic signals and include a preamplifier stage to bring the signal to usable levels. Unlike line inputs, mikrofonindgange provide gain, typically 40 to 60 dB for dynamic mics, and higher for condensers, and they present a relatively low input impedance to match microphones.

The most common connector is the XLR 3-pin balanced input, used on mixers, audio interfaces, and consoles. Many devices also offer combo jacks that accept XLR or 1/4 inch TRS plugs, and some consumer devices use 6.3 mm jacks for older gear. Condenser microphones often require phantom power, commonly 48 volts, supplied through the XLR connector; phantom power is usually switchable. Ribbon microphones may be damaged by phantom power and should be used with caution.

Impedance, gain, and noise are key considerations. A typical mic input presents around 1.5–3 kΩ of impedance and feeds a mic preamp with adjustable gain. Some inputs include a pad (for high SPL sources) and a high-pass filter to reduce rumble. Proper gain staging is essential to minimize noise and avoid distortion.

Mikrofonindgange are found on professional equipment such as audio interfaces and mixers, as well as on standalone mic preamps. They are used in recording, broadcasting, and live sound to capture vocal and instrument mics with fidelity.