The Intersection Between Home Theater and HiFi
The intersection of HiFi and Home Theater refers to the overlap between high-fidelity audio and home theater systems. HiFi systems are designed to provide a high-quality listening experience, while home theater systems are designed to provide a cinematic experience with height and surround channels.
Both disciplines of listening have the same goal, to experience sound in the most accurate and immersive way possible.
What can you do when you don't have the space for two independent systems to satisfy music listening and movie watching?
You can experience the quality of sound you deserve and still maintain your home theater without constantly swapping gear by carefully sourcing each component to serve both purposes.

The sound you hear is dependent on the quality of the source material. Using a high-quality source device, such as a 4K Blu-Ray Player, which can double as a CD transport or a high-resolution music streamer. Both can be paired with a high-quality DAC (Digital to Analog Converter), ensuring you hear the best sound quality from your source device.
Your AV receiver or processor is the central hub of a home theater system and plays a critical role in the overall sound quality. A high-quality AV receiver or processor with advanced audio processing and a neutral and transparent sound can provide you with the best possible sound quality from music and movies.

AV Receivers and Processors are two different devices that perform the same task aside from a few significant features. The AV receiver has amplification, digital-to-analog conversion, and many other characteristics that form an all-in-one solution for your home theater. I use a Denon AVR to power and control my system.

In high-end home theater systems, people often use separate components.

An audio/video processor is a standalone device used to process the audio and video signals in a home theater system. It typically includes advanced audio processing capabilities, such as surround sound decoding and equalization, and can be used with an independent amplifier to drive the speakers.

The speakers are the final link in the audio chain, but the first I would buy in the "purchasing chain." Speakers have a significant impact on the overall sound quality. Using high-quality speakers with a wide frequency response and superior tonal accuracy ensures that you are adhering to the highest quality possible, providing you with a fantastic experience whether you are listening to your favorite music or watching a blockbuster hit.

Proper speaker placement and room acoustics will significantly impact the overall sound quality. Experiment with different speaker placements and consider using room treatment products to optimize the sound in your listening space. This is one of the most crucial elements in creating an incredible listening experience in your room.
To achieve audiophile-quality sound on a home theater system, you should use a high-quality source, AV receiver/processor, and speakers and pay attention to speaker placement and room acoustics. With all these factors checked off, I am confident you will have the best of both worlds.