Power handling: The amplifier you choose should have enough power to drive all of your speakers without clipping or distorting the sound. Check the power rating of your speakers and make sure the amplifier you choose can deliver at least that much power.
Channel configuration: The amplifier you choose should have the correct number of channels to power all of your speakers. For a basic 5.1 surround sound system, you'll need an amplifier with at least five channels. If you have more speakers (such as a 7.1 system), you'll need an amplifier with at least seven channels.
Other features: Some amplifiers also come with additional features, such as a built-in DAC, a phono input for connecting a turntable, or the ability to stream music wirelessly. Consider which features are important to you and choose an amplifier that has what you need.
Here are some examples of amplifiers that would be suitable for powering a surround sound system with a subwoofer:
-Yamaha RX-V6A: This receiver has 7 channels and can deliver 100 watts of power per channel. It also has a built-in DAC, a phono input, and the ability to stream music wirelessly.
-Denon AVR-S960H: This receiver has 7 channels and can deliver 90 watts of power per channel. It also has a built-in DAC, a phono input, and the ability to stream music wirelessly.
-Onkyo TX-SR494: This receiver has 7 channels and can deliver 80 watts of power per channel. It also has a built-in DAC, a phono input, and the ability to stream music wirelessly.