Turntable/Record Player cartridges output signals at a much lower levels than CD Players etc. Many Amplifiers have extra Amplification Built-in to compensate for this low input signal (Phono Input) . Many Modern Amplifiers and Digital Surround Receivers don't have ‘Phono' Inputs so an Offboard Phono Preamplifier is required (see Line Level).
A special input found on most amplifiers that can receive signals from a record player. The signal frequency of a record player is lower than that of other sources (CD, Tuner, etc.) and therefore requires this special input. Amplifiers without a Phono Stage built-in need an external phono stage to convert the record player output into a signal that the amplifier can handle.
Cartridges output signals at much lower levels than CD players and tape decks. Many amps have the extra amplification built-in, but increasing numbers don't, and require an add-on phono amplifier.
a pre-amplifier that increases the output signal of a cartridge so that it matches the output of a digitally controlled component
The extra equalization and gain stage required to amplify signal from a pickup cartridge to line level. The RIAA equalization is necessary because bass signals are compressed to allow them to be cut onto vinyl records. There would be insufficient space otherwise. Moving magnet cartridges, which typically deliver output in mV (for 5cm/sec standard acceleration) require less amplification than most moving coil cartridges which deliver output typically in uV for the same acceleration standard.
Used to amplify signal sent from a turntable cartridge. Many amplifiers do not have built in phono stages and therefore a separate phono amp is required to produce sound from a turntable.
Turntables output sound at lower levels than other devices, such as CD players. Thus, to ensure they are suitably audible, it is necessary to connect them to a 'phono stage input', or use a 'phono pre-amp'.