An AV receiver is a multi-channel amplifier that receives and converts audio, video, and radio signals from a variety of sources.
Outdoor speakers will create good sound in a small area near your home.
Each turntable requires a dedicated phono stage to play the records correctly.
One of the key elements of a multichannel sound system is the subwoofer. It is obligatory for home theater configurations. However, there are difficulties in connecting such an important element of an audio system due to the huge variability of amplifier models and configurations.