You can have stupendously expensive stereo amps and very cheap receivers, like the Pioneer VSX-534, which usually sells for around $350. The price you pay is not about the number of output channels, which are very simple for manufacturers to add, but for the overall audio quality, the quality of internal components, and more. When to Use a Stereo Ampīy now, you’ve probably already guessed the situations in which using either of these types of amps would be appropriate. If you only want to create a hi-fi setup, with two speakers and perhaps a subwoofer, then you would go for a stereo amp. This is because you don’t actually need more than two channels.
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If, however, you want to create a home entertainment setup, which will allow you to watch movies or series with surround sound, then it would be more appropriate to go for an AV receiver. You will need more speakers for this setup, and so will require more channels to power them. In this case, a stereo amp would be inappropriate. Yes, there are certain exceptions to this rule as well, where you can incorporate additional amps into a setup with an already installed receiver. But generally speaking, you use a stereo amp for hi-fi, and an AV receiver for home theater. It really is that simple.īefore we go any further, we’d like to offer a word of warning. For most people, the information contained in this section may be too much. That isn’t because it’s overly complex – it’s actually pretty straightforward – but because going down the path of preamps and power amps can be a pretty expensive process. However, if you do want to find out more about how amplifiers work, then read on.
This is about to get good.įrom what we know so far, it’s pretty clear that both stereo amps and AV receivers are types of amplifiers, with a few key differences in their features and how many channels they output to. If that’s the case, then they must share some commonalities in their internal circuitry. This is where you come across the concept of preamps and power amps. Together, a preamp and power amp take the raw signal from your sound source, which is at a level too low for you to hear, and amplify it, making it loud enough to listen to.
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