Increase Loudness of an Entertainment

 Particularly the audio type, the sub-woofer speakers. When it comes to the two, it is indeed need some earplugs. Oops! Okay, seriously many are having or wanting to have sub-woofer on their audio device. They are going to keep/buy subwoofer speakers so sound is great and won't compromise the volume and style of the outcome. Family and friends would love that! Sub-woofer is really great for friends family gathering/bonding.

What is your idea? What do you think?