So you’ve got a speaker picked out and its time to get an amplifier. You see the speakers have a wattage number and the amplifiers all have one prominently listed too. How do you know how many watts you need? How do you know if an amplifier will work well with your speakers?
One of the most commonly misunderstood concepts in audio are the wattage figures that show up on amplifier, receiver and speaker advertisements and specifications. The most common thing we think of when it comes to wattage are light bulbs. The socket has a specification, you buy a light bulb that matches, or is smaller than, that number. That’s the wrong way to think about speakers and amplifiers. Depending on how loud a speaker is playing, it uses a variable amount of power (measured in watts), and the amplifier supplies it. So all you need is an amplifier or receiver that can deliver as much power as the speaker needs to create sound.