What does it take to make a full-fledged home theater? Besides a good picture, you also need good sound. The amplifier is responsible for this component. If the amplifier is of poor quality or simply incorrectly matched to the speaker system, you can forget about the good sound.
Instructions
Step 1
Select the type of amplifier. All amplifiers can be roughly divided into two categories: power amplifiers and stereo amplifiers. The main difference between these two types of devices is that the first can handle up to 7 channels, while the second only two. In this case, you need to buy an amplifier based on your current needs, although it is better to buy equipment of this kind "for growth", since your requirements for sound quality will undoubtedly grow over time.
Step 2
Consider the floor space before purchasing an amplifier. For example, for a small room, up to 30 square meters, an amplifier with a power of up to 50 W per channel will be sufficient. If the room in which you are going to place your home theater is significantly larger than the above area, then it is worth starting from the figure of 100 watts per channel.
Step 3
Also, keep in mind that for high-quality sound, the amplifier must not operate at its power limit. That is, if you want your amplifier to deliver 100 watts of high-quality sound, you need its rated power to be at least 150 watts per channel.
Step 4
Pay attention to such a value as the minimum allowable resistance. If you already have a speaker system, it becomes a little more difficult to acquire an amplifier, because your hands are somewhat "tied". It's all about the resistance of the speakers. If this value does not coincide with the same indicator of the amplifier, then the correct operation of the entire system is unlikely. Although many experts say that you need to buy an amplifier with a minimum resistance value of 4 ohms. This amplifier can work with almost any speaker system. Another important criterion when choosing an amplifier is the frequency range. As you know, a person can perceive the frequency interval from 20 Hz to 20 kHz. If possible, you need to choose an amplifier that would cover, if not all, then most of this interval.
