Although home theater receivers have built-in amplifiers, higher-end ones often provide two or more sets of preamp outputs that connect to external amplifiers. This setup allows you to use the ...
First of all, there can be some confusion between integrated amplifiers (one that combines both a preamp and power amp) and stereo receivers (which is basically an integrated amplifier with an AM ...
Typically built into an audio or A/V receiver, phono preamps also come as external devices for units without phono inputs as well as for audiophiles who want the highest-quality restoration.
In most stereo systems, the preamp and amp, along with an FM tuner, are packaged in one unit (see stereo receiver). In high-end systems, the preamp, amp and all audio sources are separate components.