Upgrading a home-theater system's sound quality is fraught with economic and technical decisions. And of course, the law of diminishing returns always applies. Which approach yields the most improvement in sound quality for each dollar spent?There are numerous approaches to improving sound quality in a home theater
Speakers are a popular choice for major upgrades because they add their own character to the sound. By focusing on efficiency, it is possible to improve the dynamics of a home theater system with nothing more than a speaker upgrade.
Upgrading the AVR can offer added power, new surround modes, and sophisticated room correction. The latest high-end AVRs feature 11.2 channel audio and are capable of very sophisticated DSP audio processing.
Room treatment is finally getting the respect it deserves. If a system is already capable of good performance, often room treatment will make the difference between good sound and great sound by controlling unwanted reflections.
Subwoofers can effectively extend the range of a sound system and add visceral impact to music and movie soundtracks. Using multiple subwoofers offers advantages such as smoother response, lower distortion, and higher maximum output. A good subwoofer system can make life a lot easier for an AVR trying to drive seven or nine speakers at once.
Cables are a contentious upgrade option; some people feel cables make a big difference, while others think there is zero difference between two different brands of cable with the same specifications. Still, replacing generic cables with premium cables remains a popular upgrade.
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