Can i hook up a 400 watt sub to a 750 watt amp?
You can hook up a 400 watt subwoofer to a 750 watt amplifier. Keep in mind that the amp power rating is usually a total of all channels. So if your amp is 750 watts with 4 channels then it would actually deliver approximately 190 watts per channel. In addition, keep in mind to turn the gain down on the amp to keep from accidentally applying too much power to the speaker. ChaCha on!