A dedicated circuit amplifies the low-level signal from a turntable’s cartridge to a level suitable for a standard audio amplifier. This circuit addresses the RIAA equalization curve applied during vinyl recording, correcting the frequency balance to restore the original sound. Conversely, a broader audio component manages multiple input sources (CD player, tuner, etc.), selects one for output, and controls the overall volume and sometimes tone.
The requirement for boosting and equalizing the delicate output of a vinyl cartridge has a significant impact on sound quality. Without proper amplification and equalization, the sound from a turntable would be extremely quiet and sonically unbalanced. Historically, this function was integrated into most amplifiers, but as vinyl’s popularity waned, it became increasingly common to find this circuitry absent, necessitating an external unit. This separation allows for specialized designs and higher fidelity reproduction.
