Phonoforsterkeren

Phonoforsterkeren, which translates to "phono amplifier" in Norwegian, is a specialized audio device designed to boost the signal from a phonograph cartridge to a level suitable for a standard amplifier or receiver. Phonograph cartridges, particularly those with a Moving Magnet (MM) or Moving Coil (MC) design, produce a very weak electrical signal. This signal needs to be amplified significantly and also equalized according to the RIAA curve to accurately reproduce the sound etched into a vinyl record.

A phonoforsterkeren typically houses both the pre-amplification stage and the RIAA equalization circuitry. Without a dedicated phono amplifier, connecting a turntable directly to a typical line-level input on an amplifier would result in extremely low volume and an unnatural tonal balance. Many modern integrated amplifiers and receivers include a built-in phono stage, often labeled as "Phono In." However, standalone phonoforsterkeren units are also popular among audiophiles seeking higher performance, greater flexibility in cartridge matching, and improved sound quality through dedicated, often more sophisticated, circuitry. These external units can range from simple, affordable devices to complex, high-end components.