I hooked up my trusty old Logitech speakers to see if they still worked. They did, so I booted a game and sheepishly turned the volume way down in fear of annoying my neighbors, immediately remembering why I had these stuffed in a closet for almost 10 years.
Even if I lived in a soundproof house in the middle of nowhere I'd still be self-conscious enough to just use headphones instead 
No kidding. I got one of those bluetooth gadgets a month back that lets you connect regular stereo speakers (the old-school kind that take two wires each in little spring-loaded clips) to bluetooth sources. After a single test the very next thing I ordered online was an adjustable audio attenuator to sit between the bluetooth gadget and the speakers because that setup was incredibly loud on its own, even at minimum volume from whatever bluetooth source I connected.
I have an am transmitter I keep in my room that I use to broadcast to restored antique AM radios. They were incredibly loud and I had to get one of those as well until I got a different transmitter that allowed me to modulate the output power.